ICS 23.020.30
J74
N ational Standard of the People's Republic of China
中华人民共和国国家标准
GB 150.2-2011
Partially Replace GB 150-1998
Pressure VesselsPart 2: Materials
压力容器第 2 部分:材料
Issue on: November 21 , 2011
Issued by
Implemented on: March 1, 2012
General Administration of Quality Supervision , Inspection and Quarantine
of the People's Republic of China
Standardization Administration of the People's Republic of China
Contents
Scope..... ....... ……….........….....,. ..……………................ .………. .…….......…...............................… ..........1
2
Normative References ........………………………………………………………………………… ........... .. ......... ....1
3
General Provisions ....... . . . . . . . … … ..... .. .… ..... .... ... .. ...........2
4
Steel Plates ... ...... ....... ... ...…… .............. ........……·…………….... ....…………..,...............….........… ...........5
5
Steel Tubes and Pipes ...... ....... .….........… ........................... ............. ............................... ..................15
6
Steel Forgings ..... ...… .......... ..... ..... .. ......... .. ........ ........................….......…….. .......…·… ....... ..... ..........19
7
Steel Bars for Studs (Including Bolts) and Nuts. … ................................................. ........ ..................26
Appendix A (Normative) Supplementary Requirements Pertaining to Materials ..........................…… .35
Appendix B (Informative) Reference Values for Steel Properties at Elevated Temperature.. .. ............. 41
Appendix C (In fonnative) Unified Numerical Code. …................,… .....................................................49
Appendix D (Normative) Provisions on Application ofQ235 Series Steel Plates. …·……………........... 51
OCr25Ni20), four types of seamless austenitic-ferritic high-alloy steel tubes and pipes (S21953 , S22253 ,
S22053 and S25073) were added , moreover, five austenitic designations (S30408 , S30403 , S31608 ,
S3 1603 and S32168) and three austenitic-ferritic designations (S21953 , S22253 and S22053) were
included in the welded high-alloy steel tubes and pipes;
一-In Chapter 5 "Steel Tubes and Pipes" , connection tubes machined by steel bars were listed
and the relevant requirements were specified.
一一一1n Chapter 6 "Steel Forgings"， 岛ur types of low alloy steel forgings (20MnNili旬， 12Cr2Mo 1V,
12Cr3Mol V and 08Ni3D) , four types of austenitic high alloy steel forgings (S30409 , S31 008 , S31703
and S39042) and two types of austenitic-ferritic high alloy steel forgings (S22253 and S22053) were
added.
一一一1n Chapter 7 "Steel Bars for Studs (Including Bolts)" , the minimum impact test temperature
of the 35CrMoA and 40CrNiMoA low temperature studs was adjusted , the low temperature impact
power indexes of 30CrMoA, 35CrMoA and 40CrNiMoA studs were increased , and the S31008 high
temperature high alloy steel studs as well as the S30408 low temperature high alloy steel studs
through strain hardening treatment were added.
--In Appendix A , the technical requirements for low alloy steel plates of four designations
(l 2Cr2MoIVR, 15Mnl、JiNbDR， 08Ni3DR and 06Ni9DR) and the technical requirements for low
alloy steel tubes and pipes oftwo designations (09MnNiD and 08Cr2AIMo) were added.
一一-The reference values of relevant performance data of the newly added designations were
listed in Appendix B.
一→一The comparison table of uniform code and designation of high alloy steels was listed in
Appendix C.
一一-The provisions on application of steel plates of Q23 5 series were listed in Appendix D.
This part was proposed by and is under the jurisdiction of the National Technical Committee on
Boilers and Pressure Vessels of Standardization Administration of China (SAC/TC 262).
Draf无 ing organizations of this part: Hefei General Machinery Research In stitute , China National
General Machinery Engineering Corporation , China Special Equipment Inspection and Research
Institute , Hefei Quality and Technical Supervision Bureau, Sinopec Engineering Incorporation,
Bureau of Safety Supervision of Special Equipment (SESA) of AQSIQ and Jiangsu Province Special
Equipment Safety Supervision Inspection In stitute.
Chief drafting staffs of this part: Qin Xiaozhong, Zhang Xiaohu , Zhang Yong , Yang Guoyi ,
Gu Xianshan , Duan Rui, Chang Yanyan , Miao Chunsheng and Yin Lijun.
The previous editions ofthe standards replaced by this part are:
一一-GB 150-1989 , GB 150-1998.
Pressure Vessels一-Part 2: Materials
1 Scope
This part of GB 150 specifies the designation and the standard of steels that may be used for the
pressure components of pressure vessels , the additional technical requirements of steels , and the
application scope (temperature and pressure) and allowable stress of steels.
This part is applicable to the pressure vessels with design temperature during -25 3"C~800oC
and design pressure no larger than 35岛lPa.
Inapplicable scope of this part: inapplicable scope specified in GB 150.1; vessels in refrigeration
industry and papermaking industry; enamelled vessels and simple pressure vessels; scope specified in
Atiicle 1.4 ofTSG R0004.
2
Normative References
The following documents are absolutely essential to the application of this Standard. For dated
reference documents , only the dated versions apply to this Standard; for undated reference documents ,
the latest versions (including all amendments) apply to this Standard.
GB 150.1-2011 "Pressure Vessels-Part 1: General Requirements"
GB 150 .3 - 2011 "Pressure Vessels-Part 3: Design"
GB/T 228 "Metallic Materials-Tensile Testing at Ambient Temperature"
GB/T 229 "Metallic Materials一-Charpy Pendulum Itηpact Test Method"
GB/T 699 "Quality Carbon Structural Steels"
GB 713 "Steel Plates for Boiler and Pressure Vessels"
GB/T 1220 "Stainless Steel Bars"
GB/T 1221 "Heat-resisting Steel Bars"
GB/T 3077 "Alloy Structure Steels"
GB 3531 "Low A lI oy Steel Plates for Low Temperature Pressure Vessels"
GB/T 4226 "Cold Finished Stainless Steel Bar"
GB/T 4334 "Corrosion of Metals and Alloys-Test Methods for Intergranular Corrosion of
Stainless Steels"
GB 5310 "Seamless Steel Tubes and Pipes for High Pressure Boiler"
GB 6479-2000 "Seamless Steel Tubes for High-pressure for Chemical Fertilizer Equipments"
GB/T 6803 "Test Method for Drop-weight Test to Detennine Nil-ductility Transition Temperature
ofFerritic Steels"
GB/T 7735 "Steel Tubes-The Inspection Method on Eddy Current Test"
GB/T 8163 "Seamless Steel Tubes for Li quid Service"
GB 9948 "Seamless Steel Tubes for Petroleum Cracking"
GB/T 12771 "Welded Stainless Steel Pipes for Liquid Delivery"
GB 13296 "Seamless Stainless Steel Tubes for Boiler and Heat Exchanger"
GB/T 14976 "Stainless Steel Seamless Tubes for Fluid Transport"
GB 19189 "Quenched aúd Tempered High Strength Steel Plates for Pressure Vessels"
GB/T 20878 "Stainless and Heat-resisting Steels-Designation and Chemical Composition"
GB/T 21832 "Austenitic-Ferritic (Duplex) Grade Stainless Steel Welded Tubes and Pipes"
GB/T 21833 "Austenitic-Ferritic (Duplex) Grade Stainless Steel Seamless Tubes and Pipes"
GB 24511 "Stainless Steel Plate , Sheet and Strip for Pressure Equipments"
GB/T 24593 "认felded Austenitic Stainless Steel Tubes for Boiler and Heat-exchanger"
NB/T 47002.1 "Explosion Welded Clad Plate for Pressure Vessels-Part 1: Stainless Steel-steel
Clad Plate"
NB/T 47002.2 "Explosion Welded Clad Plate for Pressure Vessels-Part 2: Nickel-steel Clad
Plate"
NB/T 47002 .3 "Explosion Welded Clad Plate for Pressure Vessels-Part 3: Titanium-steel Clad
Plate"
NB/T 47002.4 "Explosive Welding Composite Plate for Pressure Vessels-Part 4: Copper-steel
Clad Plate"
NB/T 47008 "Carbon Steel and A lI oy Steel Forgings for Pressure Equipments"
NB/T 47009 "Low-alloy Steel Forgings for Low Temperature Pressure Equipments"
NB/T 47010 "Stainless and Heat-resisting Steel Forgings for Pressure Equipments"
JB/T 4730 .3 "Nondestructive Testing ofPressure Equipments-Part 3: Ultrasonic Testing"
JB/T 4756 "Nickel and Nickel A lI oy Pressure Vessels"
TSG R0004 "Supervision Regulation on Safety Technology for Stationary Pressure Vessel"
ISO 9328-2: 2004 "Steel Fl at Products for Pressure Purposes-Technical Delivery ConditionsPart 2: Non-alloy and A lI oy Steels with Specified Elevated Temperature Properties"
3
General Provisions
3.1 This standard gives the relevant provisions on the steels used for the steel plates , steel tubes and
pipes , steel forgings and studs (including bolts) adopted by the pressure components ofpressure vessels.
The steels used for the non-pressure components that are welded with the pressure components
shall adopt the steels with favorable weldability.
3.2 Where the steels of which the designations are not included in this standard are adopted , except
for the austenitic steels , all the other steels shall meet the relevant requirements of Appendix A. It is
allowed to adopt such austenitic steels that have been included in the relevant national standards, and
2
their technical requirements (like the provisions on phosphorus content and sulphur content as well as
the strength index) shall not be less than the provisions on those designations having the approximate
chemical compositions , among the corresponding steels listed in this standard.
3.3 The steels used for the pressure components of pressure vessels shall be accompanied by the
original steel quality ce而自cate of the steel production organization, and the vessel fabrication organization
shall conduct acceptance on steels according to the quality certificate. If the original steel quality
ce11ificate of steel production organization is unavailable , then the provisions of 2.1 in TSG R0004
shall be followed. The vessel fabrication organization shall conduct reinspection on steels if the
conditions meet those stated in 2.11 ofTSG R0004.
for the pressure components of pressure vessels , the service
conditions (l ike design temperature, design pressure, medium characteristics and operating features ,
etc .), the properties of materials (mechanical properties , technological properties, chemical properties
and physical prope11ies) as well as the fabrication technology and economical rationaIity of vessels
shall be taken into consideration.
3.4
认rhen selecting the steels used
3.5 The steels used for the pressure components of pressure vessels shall be killed steel smelted
through oxygen blown converter or electric furnace. The extemal refining technology still shall be
adopted in relation to the low alloy steel plates and austenitic-ferritic stainless steel plates with the
lower limit value of standard tensile strength larger than or equal to 540孔。 a as well as to the low
temperature steel plates and low temperature steel forgings used at such application temperature that
is less than - 20 'C.
3.6 The upper limit of the application temperature of steels used for pressure components of
pressure vessels
3.6.1 The upper limit of the application temperature of steels (the maximum design temperature of
corresponding pressure component) is the maximum temper回ure corresponding to the allowable stress
of every designation listed in the allowable stress tables in this standard. Ifthe steels need operating at
such temperature above the upper limit of application temperature during the technological process ,
the corresponding provisions shall be specified in the design documents. The allowable stress given at
the right side of the bold line in the allowable stress table is determined according to 1 x 10 5h
endurance strength limit of steels at elevated temperature.
3.6.2 Where the carbon steel and carbon manganese steel are used for a long time at the temperature
above 425 "C , the tendency to graphitization ofthe carbide phase in steel shall be considered.
3.6.3 If the application temperature of austenitic steel is larger than 525 "C , the carbon content in
steel shall not be less than 0.04%.
3.7 The lower limit of the application temperature of steels used for pressure components of
pressure vessels
3.7.1 The lower limit (the minimum design temperature of corresponding pressure component) of
the application temperature of steels (excluding the austenitic steels) shall meet those specified in
Chapters 4~ 7.
3.7.2
、There the application temperature of austenitic steels is larger than or equal to 一 196"C ， such
steels may not be carried out with impact test. Where the application temperature of austenitic steels is
less than 一 196"C~ - 253 'C , the impact test requirements shall be specified in the design documents.
3
3.7.3
For steels used for low temperature and low stress conditions, the lower limit of application
temperature shall be in accordance with the requirements of Appendix E in GB 150 .3 - 2011.
3.8
3.8.1
Impact test requirements for carbon steels and low alloy steels
The minimum value of impact power of the carbon steels and low alloy steels (steel plates,
steel tubes and pipes , steel forgings and their welded joints) shall be in accordance with those specified
in Table 1.
Table 1 Minimum Impact Power ofCarbon Steels and Low Alloy Steels
Lower limit value of steel standard tensile strength
Average impact power of 3 standard specimens
R,ufMPa
KVz/J
三450
~20
>450-510
三24
>510-570
~31
>570-630
~34
>630-690
>38
~
Note: As for the steels of which R will be reduced upon the increasing of thickness , the impact power index shall be determined
",
according to R that is within the minimum thickness range ofthe steels
",
3.8.2
The sampling position and test specimen direction of Charpy V-notch impact specimen shall
meet those specified in corresponding steel standards. For the impact test, respectively three standard
specimens shall be taken as one group , therein , the impact power value of one sample may be less
than the specified value in Table 1 but shall not be less than 70% of this specified value. Wh ere the
size of steel is not enough to prepare the standard specimen , then the 7.5mm-wide or 5mm-wide
subsize impact specimens shall be prepared in turn and their impact power index shall be respectively
75% or 50% ofthat ofthe standard specimens.
3.8.3
The requirements for impact test on steel plates shall be in accordance with the provisions of
GB 713 , GB 3531 and GB 19189 respectively. 1t shall be indicated in the design document if it is
necessary to raise the impact power index. For Q245R, Q345R and 13MnNiMoR steel plates , it shall
be indicated in the design document if it is necessary to conduct impact test at -20 'C.
3.8 .4
The requirements for impact test on steel tubes and pipes sha l1 be in accordance with the
relevant provisions of Chapter 5.
3.8.5
The requirements for impact test on steel forgings shall be in accordance with the provisions
of NB/T 47008 and NB/T 47009 respectively. It shall be indicated in the design document if it is
necessary to raise the impact power index. For 20 and 16Mn as well as 20MnMo steel forgings , it
shall be indicated in the design document if it is necessary to conduct impact test at -20 'C .
3.8.6
The requirements for impact test on low a l1 0y steel studs shall be in accordance with provisions
of7 . 1. 3 and 7. 1. 4.
3.9
According to the design document requirements , the steels may be carried out with intergranular
corrosion test according to GB/T 4334 or may also be carried out with the stress corrosion test and
pitting corrosion test according to the relevant standards , and the specific test methods and qualified
indexes sha l1 be specified in the design documents.
3.10
4
1.11 case special technical requirements on the steels (like special smelting process, strict
provisions on chemical composition , high impact power index, additional assured high temperature
yield strength , improving of the qualification level of non-destructive testing and increasing the
inspection rate of mechanical properties, etc.) , the relevant provisions shall be made in the design
documen t.
3.11 As for the low alloy steel plates that have been listed in this standard and have the lower limit
value of standard tens i1 e strength being larger than or equal to 540MPa as well as those used for such
pressure vessels and with design temperature less than -40 .C , ifthe steel plate fabrication organization
has no achievements on application of pressure vessels , thus the steel plate fabrication organization
still shall pass the technical review according to those specified in TSG R0004.
3.12 The reference values of the high temperature yield strength , endurance strength limit, elasticity
modulus and average coefficient of linear expansion ofthe steels are detailed in Appendix B.
The approximate comparison of the grades of high alloy steel is detailed in Appendix C.
3.13
3.14 The substitution of steels for pressure components by the fabrication organization or field
assembly and welding organization of pressure vessels shall be obtained with the written approval of
the original design organization in advance and also shall be recorded in details in the completion
drawing.
3.15 The allowable stress of those steels listed in this standard shall be determined according to GB
150.1; the allowable stress at middle temperature given in the allowable stress table of steels may be
ca Ic ul ated by interpolation method .
4
4.1
Steel Plates
Carbon Steel and Low Alloy Steel Plates
4. 1. 1 The standards, application condition and al\ owable stress of steel plates shall be in accordance
with those specified in Table 2.
4. 1.2 For all the steel plates rolled by continuous casting as listed in Table 2, their compression ratio
shall not be less than 3.
4. 1.3 As for the carbon steel and low alloy steel plates that the normalizing, normalizing plus
tempering , or quenching and tempering heat treatment are required during the fabrication process of
vessels , the delivery condition of steel plates by the steel plate fabrication organization may be di旺erent
from the application condition listed in Table 2. For the delivery inspection of steel plate fabrication
organization and reinspection of vessel fabrication organization on the mechanical properties of steel
plates , the samples shall be taken from the heat treated coupons to do the tests. The thickness of the
coupon shall be equal to the thickness of steel plate , and both the length and width of coupon shall not
be less than three times of the thickness of steel plate. The axis of test specimen shall be located 114
thickness away from the coupon surface , the distance of test specimen position to each lateral surface
of the coupon shall not be less than the thickness of coupon , however, the head (or clamping part) of
the tensile test specimen is free 企om this limitation.
4. 1. 4 The following carbon steels and low alloy steel plates shall be used under the normalized
condition:
a)
Q245R and Q345R used for inner cylinder of mult i1 ayer vessels;
的
Q245R and Q345R used for shell with thickness larger than 36mm;
5
c) Q245R and Q345R used for other pressure components (flange , pipe sheet and flat-cover,
etc.) with thickness larger than 50mm.
4. 1. 5 The fo l1 owing carbon steel and low a l1 0y steel plates shall be carried out with the tensile test
and V-notch impact test one by one according to the heat treated sheets (if the steel plate was cut into
several pieces after heat treatment, it still shall be taken as one sheet):
a)
Quenched plus tempered heat treated steel plate;
b)
Inner-cylinder steel plate of the multi-Iayer vessel;
c)
Steel plate with a shell thickness larger than 60mm.
4. 1.6 According to the requirements of design document, for the steel plates with thickness larger
than 36mm and used under quenched plus tempered condition and the steel plates with thickness
larger than 80mm and used under normalized or normalized plus tempered condition, one more group
of impact tests with samples taken from the 112 thickness place of the steel plate may be added , and
the impact power index shall be specified in the design document.
4. 1.7 According to the requirements of design document, for the steel plates with thickness larger
than 36mm and with lower limit value of standard tensile strength larger than or equal to 540MPa as
well as the steel plates used for the design temperature less than -40 'C , the additional drop-weight test
may be carried out. The test shall be carried out according to GB/T 6803 , the P-2 type test specimens
shall be adopted , and the qualified index of nil-ductility transition (NDT) temperature shall be specified
in the design documen t.
4. 1.8 The steel plates used for the shell (excluding the layer plate of layered vessel) shall be carried
out with the ultrasonic testing sheet by sheet according to those specified in Table 3 , and the ultrasonic
testing method and quality c1 assification of steel plates shall be in accordance with those specified in
JB/T 4730 .3.
4. 1.9 As for the spherical tank with nominal volume larger than or equal to 50m3, the thickness of
plate used for sphere she l1 should not be larger than 50mm.
4. 1. 10 For the Q370R steel plates used for the design temperature larger than 200 'C as well as
18MnMoNbR, 13MnNiMoR and 12Cr2Mol VR steel plates used for the design temperature larger
than 300 'C. It sha l1 be specified that the high temperature tensile test shall be conducted on steel
plates at design temperature in batches in the design documen t. And the yield strength value of steel
plate shall refer to Appendix B.
4. 1.11 For steel plates used for pressure components, the lower limit of application temperature shall
be in accordance with those specified in Table 4. The application condition of Q245R and Q345R
steel plates in Table 4 still shall meet provisions of 4.1 .4. For steel plates used for shell with thickness
larger than 100mm and its welded joints , the strict impact test requirements shall be specified and the
design organization may select the fo l1 owing methods:
a) The impact test temperature shall be the minimum design temperature , but the impact power
index shall be larger than those specified in Table 1;
的
The impact test temperature shall be less than the minimum design temperature and the
impact power index shall be in accordance with those specified in Table 1.
6
飞
Tab le 2
Allowable Stress of Cal-bon Steel and Low A ll oy Stecl Plates
Strength index at
Allowable stress at the fo llowing temperatures ("C)肌1Pa
Steel plate
Application
Thickness
standard
condition
π1m
room temperature
Designation
Note
GB 713
18MnMoNbR
13MnNiMoR
GB 713
3- 16
400
> 16- 36
200
250
300
350
400
425
450
475
245
148
147
140
131
117
108
98
91
85
61
41
400
235
148
140
133
124
III
102
93
86
84
61
41
>36- 60
400
225
148
133
127
119
107
98
89
82
80
61
41
>60- 100
390
205
137
123
117
109
98
90
82
75
73
61
41
> 100- 150
380
185
123
112
107
100
90
80
73
70
67
61
41
3- 16
510
345
189
189
189
183
167
150
143
125
93
66
43
> 16- 36
500
325
185
185
183
170
157
143
133
125
93
66
43
>36- 60
490
3 15
181
181
173
160
147
133
123
11 7
93
66
43
>60- 100
490
305
181
181
167
150
137
123
117
11 0
93
66
43
> 100- 150
480
285
178
173
160
147
133
120
113
107
93
66
43
> 150- 200
470
265
174
163
153
143
130
117
110
103
93
66
43
10- 16
530
370
196
196
196
196
190
180
170
> 16- 36
530
360
196
196
196
193
183
173
163
>36- 60
520
340
193
193
193
180
170
160
150
Normalized plus
30- 60
570
400
211
211
211
211
211
211
211
207
195
177
117
tempered
>60- 100
570
390
211
211
21 1
211
211
211
211
203
192
177
117
Normalized plus
30- 100
570
390
211
211
211
211
211
211
211
203
tempered
> 100- 150
570
380
211
211
211
211
2 11
2 11
211
200
controlled rolled ,
500
525
550
575
600
controlled rolled ,
normalized
Q370R
MPa
150
Hot rolled ,
GB 7 日
MPa
100
normalized
Q345R
R' L
三20
Hot roll ed ,
Q245R
Rm
Normalized
GB 713
GB7 日
7
Tab le 2 (continue d)
Strength index at
Allowabl e stress at the following temperatures ("C)岛1Pa
Steel plate
Application
Thickness
standard
condition
盯lπ1
Note
room temperature
Des ignation
Rm
RCL
MPa
MPa
6- 60
450
>60- 100
<20
100
150
200
250
300
350
400
425
450
475
500
525
550
295
167
167
167
160
150
140
133
126
122
119
117
88
58
37
450
275
167
167
157
147
140
131
124
117
114
111
109
88
58
37
> 100- 150
440
255
163
157
147
140
133
123
117
110
107
104
102
88
58
37
Normalized p1us
6- 100
520
310
193
187
180
170
163
153
147
140
135
130
123
80
54
33
tempered
> 100- 150
510
300
189
180
173
163
157
147
140
133
130
127
121
80
54
33
6- 150
520
310
193
187
180
173
170
167
163
160
157
147
119
89
61
46
37
No口nal i zed plus
6-60
440
245
163
150
140
133
127
117
111
105
103
100
98
95
82
59
41
tempered
>60- 100
430
235
157
147
140
133
127
117
111
105
103
100
98
95
82
59
41
30- 120
590
415
219
219
219
219
219
219
219
219
2 19
193
163
134
104
72
6- 16
490
315
181
181
180
167
153
140
130
> 16- 36
470
295
174
174
167
157
143
130
120
>36- 60
460
285
170
170
160
150
137
123
117
>60- 100
450
275
167
167
157
147
133
120
113
> 100- 120
440
265
163
163
153
143
130
117
110
6- 16
490
325
181
181
181
173
> 16- 36
480
315
178
178
178
167
>36- 60
470
305
174
174
173
160
575
Normalized plus
15CrMoR
GB7 日
tempered
14Cr1MoR
GB 713
Normalized plus
12Cr2MoIR
GB 713
tempered
12C rI MoVR
GB 713
Normalized p lus
12Cr2MoIVR
tempered
Normalized,
16MnDR ,
GB 3531
normalized plus
tempered
Normalized ,
15肌1nNiDR
GB 3531
normalized plus
tempered
8
600
Tab le 2 (continued)
Strength index at
Allowable stress at the foll owing temperatures ("C)爪t1 Pa
Steel plate
Application
Th ickness
standard
condition
口1 町1
room temperature
Designation
Note
15MnNiNbDR
GB 353 1
RcL
MPa
MPa
<20
100
150
200
250
300
350
No口nalized，
10- 16
530
370
196
196
196
196
normalized p1us
> 16- 36
530
360
196
196
196
193
tempere<l
>36- 60
520
350
193
193
193
187
6- 16
440
300
163
163
163
160
153
147
137
> 16- 36
430
280
159
159
157
150
143
137
127
>36- 60
430
270
159
159
150
143
137
130
120
>60- 120
420
260
156
156
147
140
133
127
117
6- 60
490
320
181
181
>60- 100
480
300
178
178
Quenched plus
6-30
680
560
252
252
tempered
>30-40
680
550
252
252
10- 60
6 10
490
226
226
226
226
10-60
6 10
490
226
226
226
226
10- 50
6 10
490
226
226
226
226
10- 60
610
490
226
226
226
226
Normalized,
09Mn NiDR
Rm
400
425
450
475
500
525
550
575
600
normaliz巳d plus
tempered
Normalized,
no口nalized plus
08Ni 3DR
tempered, quenched
plus tempered
06Ni9DR
Quenched plus
07MnMoVR
GB 19189
temp巳red
Quenched plus
07MnNiVDR
GB 19 189
tempered
Quenched plus
07MnNiVDR
GB 19 189
tempered
Quenched plus
12MnNiVR
GB 19189
F
tempered
Notel: The technical requirements of this type ofsteel plates 缸e detailed in Appendix A
9
Ta b le 3
R eq ui rements for Ult raso n ic Testi ng on Steel Plates Used fo r S h ell
Thickness of steel
Designation
Quality level
Application condition ofvessel
plate, mm
Q245R
>30- 36
No less than Level III
Q345R
>36
No less than Level II
>25
No less than Level II
>20
No less than Level II
主 16
Level 1
主 12
Level I
Q370R
Mn-Mo series
Cr-Mo series
Cr-Mo-V series
16MnDR
Ni series of low temperature steel
(巳xcludin g ones lI nder quenched
pl us t巳mpered condition)
Designation (steel) applied lI nder
quenched plus tempered condition
In n巳r-cy lind巳r ste巳1 plate of the
1l1 11lti-layer vessel
The toxicity level ofthe med illm contained is
extremely toxic or highly toxic:
;三 12
No less than Level II
The vessel is used in wet H,S environment;
The design press ure is larger than or equal to 10MPa
Ta ble 4
Lower Li m it of Ap p licatio n Temp er a ture of Steel P la t e
Thi ckness of steel
Designation
Lower Li1l1 it of application
Application cond ition
Requirements for impact test
temperature , .C
pl ate, mm
Steel plates used at intermediate and nor1l1 al te1l1 peratures
<6
No need
6- 12
Hot rolled. controlled rolled
> 12-16
normalized
-20
- 20
Condllcting impact test at O.C
- 10
Q245R
。
> 16- 150
> 12- 20
Hot rOll ed , controlled rolled
Conducting impact test at - 20.C
- 20
> 12- 150
Normal ized
(agreed)
- 20
No need
-20
<6
6-20
Hot rolled, controlled rolled ,
>20- 25
normalized
-20
Conducting impact test at O.C
一 10
Q345R
。
>25- 200
Q3 70R
18ν[n扣10NbR
>20- 30
Hot rolled, controlled rolled
Conducting impact test at - 20 .C
- 20
>20- 200
Normalized
(agreed)
一 20
10- 60
Normalized
Conducting impact test at - 20.C
- 20
Conducting i1l1pact test at O.C
。
30- 100
Normalized plus tempered
Conducting impact test at 一 1 0.C
一 10
(agreed)
10
Table 4 (continued)
Designation
Thickness of steel
Application condition
plate , mm
Requirements for impact test
Lower Li mit of application
temperature, 'C
Steel plates used at intermediate and nor l11 al tC l11 peratures
Conducting impact test at O'C
13MnNiMoR
30-150
Normalized plus tempered
Conducting il11 pact test at - 20'C
(agreed)
。
- 20
07MnMoVR
10-60
Quenched plus temp巳red
Conducting impact test at - 20'C
-20
12MnNiVR
10-60
Quenched plus te l11 pered
Conducting impact test at - 20'C
20
Steel plates used at low temperature
16MnDR
Conducting impact test at 一 40'C
-40
Conducting impact test at - 30'C
30
normalized plus
te l11 pered
Condllcting il11 pact test at - 45'C
45
Normalized, normalized plllS
tempered
Conducting impact t巳st at - 50'C
- 50
Conducting impact test at - 70'C
70
Norl11a1ized, norma1ized p111S
Conducting impact test at 一 100 'C
tempered , qllenched plus tempered
-100
6-60
Norl11 a1ized, normalized plus
tempered
>60-120
Normaliz时，
15MnNiDR
6-60
15MnNiNbDR
10-60
09MnNiDR
6-120
08Ni3DR
6-100
06Ni9DR
6-40
(6-12)
double norma1ized plus tempered)
07MnNiVDR
10-60
07MnNiMoDR
10-50
Normalized , normalized plus
tempered
Quenched plllS tempered (or
Conducting impact test at - 196'C
196
Quenched plus tempered
Conducting impact test at - 40 "C
-40
Quenched plus tempered
Conducting il11 pact test at - 50'C
-50
4.1.12 The P265GH and P355GH steel plates in IS0 9328-2 may be used , and their application
condition, thickness and application temperature range, and allowable stress shall respectively be in
accordance with the corresponding requirements of Q245R and Q345R steel plates. 巩f巾he创r句e the 剑
steel1
plate needs to be carried ou川
l刊t 一 20.C impact 臼
t es钊t according to those speci日 ed in 4. 1.1口1 ， the impactt
powe
创r index (the average impact power of three standard specimens) of P265GH and P355GH steel
plates shall be increased to 3 1J and 34J respectively.
4.1.13 The requirements on the application ofQ235 steel plates (Q235B and Q235 C) are detailed in
Appendix D .
4.2
High Alloy Steel Plates
4.2.1 The standards, thickness scope and allowable stress of steel plates shall be in accordance with
those specified in Table 5.
4.2.2 All the steel plates listed in Table 5 shall be made with such steel rolled through extemal refrning.
And the compression ratio of the steel plate rolled by continuous casting shall not be less than 3.
4.2.3 The delivery condition of steel plate shall comply with the corresponding requirements of GB
2451 1. The ferritic (S 1xxxx) steel plates shall be delivered at annealed condition , the austeniticferritic (S2 x x x x) steel plates and the austenitic (S3 x x x x) steel plates shall be delivered at solution
heat treated condition.
11
4.2.4 The permissible deviation of thickness for the hot-rolled thick steel plates , hot-rolled steel
plates and steel strips listed in GB 24511 is divided into two precision grades , namely the general
precision and higher precision. Generally, the pressure vessels adopt the general precision, and the
design organization , if requiring the higher precision (code: PT) , shall specify in the design documen t.
4.2.5 As for the surface processing type of steel plates as listed in GB 24511 , it is divided into Level
lE (hot rolling , heat treatment and mechanical descaling) and Level lD (hot rolling, heat treatment
and pickling) for the hot rolled products, into the Level 2D (cold rolling , heat treatment, pickling or
descaling) and Level 2B (cold rolling , heat treatment, pickling or descaling , and tumed finish) for the
cold rolled products . The surface processing types shall be specified in the design documents. Among
the pressure vessels , the hot rolled products generally shall adopt the Level lD and the cold rolled
products generally shall adopt Level 2B.
4.2.6 As for the steel plates used for pressed components , the lower limit of their application
temperature shall be in accordance with the following requirements:
a)
O'C for the ferritic steel plates;
b)
-20'C for the austenitic-ferritic steel plates;
c)
The austenitic steel plate shall be in accordance with the requirements of3 .7 .2.
4.2.7 In the design document, the requirements on the additional test R pLO to austenitic steel plates
may be proposed according to GB 24511 and the allowable stress of steel plates shall be determined
by using the standard specified values according to 4 .4 ofGB 150 .1 -201 1.
4.3
4.3.1
Clad Steel Plates
Stainless steel-steel clad plates
a) The technical requirements of stainless steel-steel clad plates shall meet those specified in
NB !T 47002.1. For austenitic stainless steel cladding metal not counted in strength calculation , the
designation may be selected from that of national standards except GB 24511 , and the technical
requirements (such as phosphorus content, sulfur content, strength index, etc.) for the designation of
this cladding metal may be lower than the requirements for corresponding designation in GB 24511.
的 The percentage of unbounded area of clad plates shall not be larger than 5% and the grade of
clad plates shall be specified in the design documents;
c) The application temperature range of stainless steel-steel clad plates shall comply with the
requirements of this stal1 dard 011 the application tempera阳re range of both base metal and cladding
meta 1.
d) In the design document, other clad steel plate standards may also be selected , however, the
technical requirements and application temperature range of clad steel plates shall meet those specified
in a)~c) ， therein , the shear bonding strength ofthe clad interface shall not be less than 210MPa.
4.3.2
Nickel-steel clad plates
a) The technical requirements of nickel-steel clad plates shall be in accordance with those
specified in NB/T 47002.2;
b) The percentage of unbounded area of clad plates shall not be larger than 5% and the grade of
clad plates shall be specified in the design documents;
12
Table 5
Steel plate
Thickness
standard
盯1m
SI1306
GB 24511
SI1348
Allowable Stress of High Alloy Steel Plates
Allowable stress at the following temperatures CC)fMPa
Designatio l1
Note
<20
100
150
200
250
300
350
400
1. 5-25
137
126
123
120
119
117
112
109
GB 24511
1.5-25
113
104
101
100
99
97
95
90
S11972
GB 24511
1. 5- 8
154
154
149
142
136
131
125
S21953
GB 24511
1. 5- 80
233
233
223
217
210
203
S22253
GB 24511
1.5 -80
230
230
230
230
223
217
S22053
GB 24511
1.5 - 80
230
230
230
230
223
217
137
137
137
130
122
114
III
S30408
GB 24511
1.5 - 80
137
114
103
96
90
85
120
120
118
110
103
120
98
87
81
137
137
137
137
114
137
S30403
S30409
S31008
S31608
GB 24511
GB 24511
GB 24511
GB 24511
450
500
525
550
575
600
625
650
675
700
107
103
100
98
91
79
64
52
42
32
27
82
79
76
74
73
71
67
62
52
42
32
27
98
94
91
88
76
73
69
67
65
130
122
114
111
107
103
100
98
91
79
64
52
42
32
27
103
96
90
85
82
79
76
74
73
71
67
62
52
42
32
27
137
137
137
134
130
125
122
119
115
113
105
84
61
43
31
23
137
121
111
105
99
96
93
90
88
85
84
83
81
61
43
31
137
137
137
134
125
118
113
111
109
107
106
105
96
81
65
137
117
107
99
93
87
84
82
81
79
78
78
76
73
65
725
750
775
800
19
15
12
10
8
23
19
15
12
10
8
50
38
30
50
38
30
1.5 - 80
1.5 -80
1. 5-80
1. 5-80
13
Table 5 (continued)
Steel plate
Thickness
standard
叮1m
GB 24511
1. 5- 80
A l\ owab le stress at the fo l\ owing temperatures CC )lMPa
Note
Designation
S3 1603
S3 1668
S31708
S31703
S32168
S39042
GB 245 11
GB 24511
GB 24511
GB 24511
GB 24511
525
550
575
600
625
650
675
700
107
106
105
96
81
65
50
38
30
79
78
78
76
73
65
50
38
30
105
103
101
83
58
44
33
25
18
13
78
76
75
74
58
44
33
25
18
13
::;20
100
150
200
250
300
350
400
450
500
120
120
117
108
100
95
90
86
84
120
98
87
80
74
70
岳7
64
62
137
137
137
134
125
118
113
111
109
107
137
11 7
107
99
93
87
84
82
81
79
137
137
137
134
125
118
113
111
109
137
117
107
99
93
87
84
82
81
137
137
137
134
125
11 8
113
111
109
137
117
107
99
93
87
84
82
81
137
137
137
130
122
114
111
108
137
114
103
96
90
85
82
80
147
147
147
147
144
131
122
147
137
127
11 7
107
97
90
725
750
775
800
1. 5- 80
1. 5- 80
1. 5-80
1
1. 5- 80
1
1 .5 - 80
Note l: The a\l owable stress in this row is only applicable to the components for which slight permanent deformation is a \l owable, but not applicable to f1 anges or 0由 er occasions for which slight permanent I
deformation will cause leakage or faults
14
c) The application scope of nickel-steel c1 ad plates shalI comply with the provisions on base
metal and cladding metal at the same time , therein , the application temperature of base metal shalI
meet those specified in this standard , and the application temperature range of cladding metal shalI
meet those specified in JB /T 4756.
d) 1n the design document, other clad steel plate standards may also be selected, however, the
technical requirements and application temperature range of clad steel plates shalI meet those specified
in a)~吟， therein , the shear bonding strength ofthe clad interface shalI not be less than 2 1OMPa.
4.3.3
Titanium-steel clad plates
a) The technical requirements of titanium-steel clad plates sha lI be in accordance with those
specified in NB/T 47002.3;
b) The percentage of unbounded area of clad plates sha lI not be larger than 5% and the grade of
clad plates sha lI be specified in the design documents;
c) As for the titanium-steel clad plates, the lower limit of their application temperature shaIl be
in accordance with the provisions on base metal as stated in this standard , and the upper limit of their
application temperature shall be 350'C.
d)
1n the design document, other clad steel plate standards may also be selected , however, the
technical requirements and application temperature range of clad steel plates shaIl meet those specified
in a)~c)， therein , the shear bonding strength ofthe clad interface shall not be less than 140MPa.
4.3 .4
Copper-steel clad plates
a) The technical requirements of copper-steel clad plates shall be in accordance with those
specified in NB/T 47002 .4;
b) The percentage of unbounded area of c1 ad plates shall not be larger than 5% and the grade of
cI ad plates shall be specified in the design documents;
c) As for the copper-steel clad plates , the lower limit of their application temperature shall be in
accordance with the provisions on base metal as stated in this standard , and the upper limit of their
application temperature sha lI be 200 'C;
d) 1n the design document, other clad steel plate standards may also be selected , however, the
technical requirements and application temperature range of c1 ad steel plates shall meet those specified
in a)~吟， therein , the shear bonding strength ofthe clad interface shall not be less than 100MPa.
5
5.1
Steel Tubes and Pipes
Carbon Steel and Low Alloy Steel Tubes and Pipes
5. 1. 1 The standards , application condition and allowable stress of steel tubes and pipes shall be in
accordance with those specified in Table 6. For steel tubes and pipes with wall thickness larger than
30mm or application temperature less than -20 'C , it is not alI owed to replace the normalized
application condition in the table by hot rolled application condition even its finishing tempera阳re
meets the normalizing temperature.
5. 1.2 The steel used for such steel tubes and pipes with design temperature less than -40'C listed in
Table 6 all shall pass through external refining.
15
Tab le 6
A ll owab le Stress of Carbo n Steel a nd L ow A lloy Steel T u bes and P ipes
Strength index at
Application condition
Designation
Allowab le stress at the following temperatures CC )lMPa
Thickness
Stee 1 tube and
pipe standard
Note
room temperature
m何】
R MPa
RcL MPa
三20
100
150
200
250
300
350
400
425
450
475
",
525
550
575
600
10
GBrr 8163
Hot ro ll ed
三 10
335
205
124
12 1
115
108
98
89
82
75
70
61
41
20
GBrr 8 163
Hot rolled
< 10
4 10
245
152
147
140
131
11 7
108
98
88
83
61
41
Q345D
GBrr 8 163
Normalized
< 10
470
345
174
174
174
174
167
153
143
125
93
66
43
三16
335
205
124
121
115
108
98
89
82
75
70
61
41
10
GB 9948
Normalized
> 16- 30
335
195
124
117
III
105
95
85
79
73
67
61
41
三16
4 10
245
152
147
140
13 1
11 7
108
98
88
83
61
41
> 16- 30
4 10
235
152
140
133
124
III
102
93
83
78
61
41
三16 年
4 10
245
152
147
140
13l
117
108
98
88
83
61
41
> 16- 40
4 10
235
152
140
133
124
111
102
93
83
78
61
41
三16
490
320
181
181
180
167
153
140
130
123
93
66
43
> 16-40
490
310
181
181
173
160
147
133
123
11 7
93
66
43
<16
4 10
205
137
121
115
108
10 1
95
88
82
80
79
77
74
50
>16- 30
410
195
130
117
III
105
98
91
85
79
77
75
74
72
50
主16
440
235
157
140
131
124
11 7
108
10 1
95
93
91
90
88
58
37
> 16- 30
440
225
150
133
124
117
11 1
103
97
91
89
87
86
85
58
37
>30- 50
440
215
143
127
117
11 1
105
97
92
87
85
84
83
81
58
37
三30
450
280
167
167
163
157
153
150
147
143
140
137
11 9
89
61
46
37
< 16
390
195
130
11 7
III
108
105
101
98
95
93
91
83
62
46
35
26
18
>16- 30
390
185
123
111
105
101
98
95
91
88
86
85
82
62
46
35
26
18
三30
470
255
170
153
143
133
127
11 7
111
105
103
100
98
95
82
59
41
20
20
16Mn
12CrMo
15CrMo
GB 9948
GB 6479
GB 6479
GB 9948
GB 9948
1Cr5Mo
12Cr 1MoVG
No口n a lized
No口n alized
Normalized
Normalized plus tempered
Normalized plus tempered
Normalized plus tempered
12Cr2Mo 1
GB 9948
GB 5310
An nealed
Normalized plus tempered
09Mn D
Normalized
三8
420
270
156
156
150
143
130
120
110
09MnNiD
Normalized
三8
440
280
163
163
157
150
143
137
127
08Cr2A1Mo
Normalized plus tempered
2二8
400
250
148
148
140
130
123
11 7
09CrCuSb
Normalized
三8
390
245
144
144
137
127
Note1: The technical requirements of this type ofsteel tubes and pipes are detailed in Appendix A.
16
500
5. 1.3
The application requirements of the steeI tubes and pipes made of 10 steel , 20 steel and
Q345D steel as stated in GB/T 8163 are as follows:
a)
Shall not be used as heat exchange tube;
b)
Design pressure shall not be larger than 4.0MPa;
c) The lower limit of application temperature of the steel tubes and pipes made of 10 steel, 20
steel and Q345D steel shall be -10 'C , O'C and -20'C respectively.
d)
Wall thickness of steel tube/pipe shall not be larger than 10mm;
e)
Shall 110t be used for the extremely or highly toxic medium.
5. 1. 4
The provisions on application of steel tubes and pipes of those designations stated in GB 9948
are as follows:
a) The heat exchange tube shall select the cold-drawn or cold rolled steel tube , and the
dimensional accuracy of steel tube shall select the high accuracy class;
b) For steel tubes and pipes made of 10 or 20 steel with external diameter no less than 70mm
and wall thickness no less than 6.5mm , the impact test shall be conducted at -20'C and O'C
respectively. The average impact power of three longitudinal standard specimens of steel tubes and
pipes made of 10 steel or 20 steel shall not be less than 311. The minimum impact power of one test
specimen and the impact power index of subsize impact test specimens shall comply with the
provisio l1 S of3.8.2. The lower limit ofapplication temperature ofsteel tubes and pipes made of 10 or
20 steel shall be -20 'C and O'C respectively.
5. 1.5 The provisions on application of steel tubes and pipes ofthose designations stated in GB 6479
are as follows:
a)
The sulfur content in steel shall not be larger than 0.020%;
b) The heat exchange tube shall select the cold-drawn or cold rolled steel tube , and the
dimensional accuracy of steel tube shall select the high accuracy class;
c) For steel tubes and pipes made of 20 or 16Mn steel with external diameter no less than
70mm and wall thickness no less than 6.5mm, the impact test shall be conducted at O'C and -20 'C
respectively. The average impact power of three longitudinal standard specimens of steel tubes and
pipes made of 20 or 16Mn steel shall not be less than 311 and 34J respectively. The minimum impact
power of one test specimen and the impact power index of subsize impact test specimens shall comply
with the provisions of 3.8 .2. The lower limit of application temperature of steel tubes and pipes made
of 20 or 16Mn steel shall be O'C and -20'C respectively.
5. 1.6 Where the 12Cr 1Mo VG steel tube stated in GB 5310 is used as the heat exchange tube , the
cold-drawn or cold rolled steel tube should be selected.
5. 1.7 The designation , application condition and impact test temperature (namely the lower limit of
application temperature of steel tube/pipe) of the steel tubes and pipes with application temperature
less than - 20'C shall be in accordance with those specified in Table 7, and the chemical composition
of 1 仙1n steel in this table shall comply with the provision: P三0 . 025% and S三0 . 015%. For steel tubes
and pipes with external diameter no less than 70mm and wall thickness no less than 6.5mm , the
impact test shall be conducted at -40 'C. The average impact power of three longitudinal standard
specimens shall not be less than 34J. The minimum impact power of one test specimen and the impact
17
power index of subsize impact test specimens shall comply with the provisions of 3.8.2. The relevant
provisions on 09MnD and 09MnNiD steel tubes and pipes are detailed in Appendix A.
Table 7 Lower Limit of Application Temperature of Steel Tubes and Pipes Used at Low Temperature
Designation
Steel tube/pipe standard
Application condition
Wall thickness/mm
Impact test temperaturel"C
16Mn
GB 6479
Normalized
~40
-40
09MnD
AppendixA
Normalized
<8
-50
09MnNiD
AppendixA
Normalized
三8
一 70
It is a lI owed to fabricate the connection tube by selecting steel bars made of 10 steel or 20
steel with diameter no larger than 50mm in GB/T 699 , and the application provisions are as fo lI ows:
5. 1.8
a)
The wall thickness of the connection tube shall not be larger than 8mm and the connection
tube shall be used after heat treatment through normalizing;
的
The allowable stress of the connection tube made of 10 steel or 20 steel may select that of
designati on and wall thickness corresponding to GB 9948 in Table 6;
c)
The lower limit of application temperature of the connection tube made of 10 steel or 20
steel shall be -10.C and O.C respectively; where P三0.030% and S三0.020% for the connection tube
made of 10 steel , its lower limit of application temperature shall be -20 .C;
d)
The impact test shall not be carried out for the connection tube. The requirements for hardness
(or tensile) test and non-destructive testing shall be specified in the design documents.
High Alloy Steel Tubes and Pipes
5.2
The standards , wall thickness range and allowable stress of steel tubes and pipes shall be in
5.2.1
accordance with those specified in Table 8. The delivery condition of steel tubes and pipes shall be in
accordance with those specified in the corresponding steel tube/pipe standards listed in Table 8. The
unified numerical code for the designation ofGB 13296 and GB/T 14976 in Table 8 are in accordance
with those specified in GB/T 20878.
5.2.2
The steel tubes and pipes stated in GB/T 14976 shall not be used for heat exchange tube.
5.2.3 Where the steel tubes and pipes specified in GBIT 21833 are used for the heat exchange tube ,
the cold-drawn or cold rolled steel tube shall be adopted , and the dimensional accuracy of steel tube
shall select the high accuracy class.
Among the steel tubes and pipes specified in GB/T 12771 , the Category I~N ones may be
5.2.4
used but shall not be used for heat exchange tubes , the se!ected steel tube/pipe category shall be
indicated on the drawing. The allowable stress of Category 1 steel tubes and pipes may select the
a Il owable stress of the seamless steel pipe of corresponding designation listed in GB/T 14976. The
application ofthe Category III and N steel tubes and pipes are specified as follows:
a)
The design pressure shall be !ess than 10.0MPa;
b)
ShaIl not be used for the extremely or highly toxic medium.
The application of those steel tubes and pipes specified in GB/T 24593 are specified as
5.2.5
follows:
a)
18
The steel tubes and pipes shall carried out with the eddy current testing stick by stick, the
artificial defects of reference pipe shall comply with the provisions on the acceptance level B as
specified in GB/T 7735;
b)
The design pressure shall be less than 10.0MPa;
c)
Shall not be used for the extremely or highly toxic medium.
5.2.6 The Category 1 and II steel tubes and pipes specified in GB/T 21832 may be used but shall not
be used for heat exchange tubes. The selected steel tube/pipe category shall be indicated on the
drawing. The allowable stress of Category 1 steel tubes and pipes may select the allowable stress of
the seamless steel pipe of corresponding designation listed in GB/T 21833.
The Category VJ steel tubes and pipes specified in GB/T 21832 shall only be used for the heat
exchange 阳bes. The steel tube/pipe category (Category VI) shall be indicated on the drawing. The
5.2.7
permissible deviation for the external diameter of steel tubes and pipes shall be delivered according to
the high accuracy c1 ass . The application of such category of steel tubes and pipes are specified as
follows:
a) The steel tubes and pipes shall carried out with the eddy current testing stick by stick, the
artificial defects of reference pipe shall comply with the provisions on the acceptance level B as
specified in GB/T 7735;
b)
The design pressure shall be less than 10.0MPa;
c)
Shall not be used for the extremely or highly toxic medium.
5.2.8 The lower limit of application temperature ofthe steel tubes and pipes shall be in accordance
with following provisions:
a)
Shall be -20 "C for steel tubes and pipes ofall designations in GB/T 21832 and GB/T 21833;
b) The lower limit of application temperature of steel tubes and pipes of all designations
specified in GB 13296, GB/T 14976, GB/T 12771 and GB/T 24593 shall be in accordance with those
specified in 3.7.2.
5.2.9 It is allowed to fabricate the connection tube with S30408 , S30403 , S32168 , S31608 , S31603 ,
S31703 and S31 008 steel bars with diameter no larger than 50mm in GB/T 1220.
的
The wall thickness of the connection tube shall not be larger than 8mm and the connection
tube shall be used at solid so\ution (or stabilization) treatment condition;
b) The allowable stress of the connection tubes made of all designations may se\ect that of
designations corresponding to GB/T 14976 in Table 8;
c) The \ower \imit of application temperature of the connection tubes of all designations shall
be in accordance with those specified in 3.7.2;
d)
The requirements for hardness (or tensile) test and non-destructive testing on connection
tubes shall be specified in the design documents.
6
6.1
Steel Forgings
Carbon Steel and Low Alloy Steel Forgings
6. 1.1 The standards and allowable stress of steel forgings shall be in accordance with those specified
in Table 9.
19
Table 8
AIIowable Stress of High A II oy Steel Tubes and P ip es
A lI owable stress at the following temperatures CC)爪1Pa
Steel tube al1 d Wall thickness
Note
Designation
pipe standard
口1m
GB 13296
三 14
。 Crl8Ni9
(S30408)
OCr l 8Ni9
GB!T 14976
00Cr l9N il 0
00Crl 9Ni l0
OCrl8Ni 1OTi
GB!T 14976
OCrl 7Ni 12Mo2
OCr17Ni 12Mo2
00Crl7N i1 4Mo2
GB !T 14976
OCrl8Nil2Mo2Ti
(S31668)
GB !T 14976
525
550
575
600
625
650
675
700
137
137
137
130
122
114
111
107
103
100
98
91
79
64
52
42
32
27
137
11 4
103
96
90
85
82
79
76
74
73
71
67
62
52
42
32
27
137
137
137
130
122
114
111
107
103
100
98
91
79
64
52
42
32
27
137
11 4
103
96
90
85
82
79
76
74
73
71
67
62
52
42
32
27
117
11 7
11 7
110
103
98
94
91
88
117
97
87
81
76
73
69
67
65
117
117
117
110
103
98
94
91
88
117
97
87
81
76
73
69
67
65
137
137
137
130
122
114
111
108
105
103
101
83
58
44
33
25
18
13
137
114
103
96
90
8S
82
80
78
76
75
74
58
44
33
25
18
13
137
137
137
130
122
114
III
108
105
103
101
83
58
44
33
25
18
13
137
114
103
96
90
85
82
80
78
76
75
74
58
44
33
25
18
13
137
137
137
134
125
118
11 3
111
109
107
106
105
96
81
65
50
38
30
137
11 7
107
99
93
87
84
82
81
79
78
78
76
73
65
50
38
30
137
137
137
134
125
118
113
111
109
107
106
105
96
81
65
50
38
30
137
117
107
99
93
87
84
82
81
79
78
78
76
73
65
50
38
30
117
117
11 7
108
100
95
90
86
84
117
97
87
80
74
70
67
64
62
117
11 7
11 7
108
100
95
90
86
84
117
97
87
80
74
70
67
64
62
137
137
137
134
125
118
113
111
109
107
137
117
107
99
93
87
84
82
81
79
137
137
137
134
125
118
113
111
109
107
137
11 7
107
99
93
87
84
82
81
79
主 14
(S31668)
OCrl8Ni12Mo2Ti
500
三28
(S3 1603)
GB 13296
450
<14
(S31603)
00Crl7Nil4Mo2
400
主28
(S3 1608)
GB 13296
350
<14
(S31608)
GB/T 14976
300
三28
(S32 168)
GB 13296
250
< 14
(S32168)
OCrl8Ni 1OTi
200
<28
(S30403)
GB 13296
150
< 14
(S30403)
GB!T 14976
100
<28
(S30408)
GB 13296
:::20
<28
、
20
725
750
775
800
Table 8 (continued)
AIIowabl e stress at the foII owing temperatures (C )/MPa
Steel tube and Wall thickness
Note
Designation
pipe standard
町1 町1
GB 13296
< 14
OCrl9Ni I3 Mo3
(S31708)
OCr19Ni13Mo3
GBrr 14976
00Cr19Ni13Mo3
00Cr 19N i13Mo3
OCr25Ni20
。 Cr25Ni20
300
350
400
450
500
525
550
575
600
625
650
675
700
137
137
137
134
125
118
113
111
109
107
106
105
96
81
65
50
38
30
137
117
107
99
93
87
84
82
81
79
78
78
76
73
65
50
38
30
137
137
137
134
125
118
113
111
109
107
106
105
96
81
65
50
38
30
137
11 7
107
99
93
87
84
82
81
79
78
78
76
73
65
50
38
30
117
117
117
117
117
117
113
111
109
117
117
107
99
93
87
84
82
81
117
117
117
117
117
117
113
11 1
109
117
117
107
99
93
87
84
82
81
137
137
137
137
134
130
125
122
119
115
113
105
84
61
43
31
23
137
121
111
105
99
96
93
90
88
85
84
83
81
61
43
31
137
137
137
137
134
130
125
122
119
115
113
105
84
61
43
137
121
111
105
99
96
93
90
88
85
84
83
81
61
137
137
137
130
122
114
III
107
103
100
98
91
79
137
114
103
96
90
85
82
79
76
74
73
71
725
750
775
800
19
15
12
10
8
23
19
15
12
10
8
31
23
19
15
12
10
8
43
31
23
19
15
12
10
8
64
52
42
32
27
67
62
52
42
32
27
主28
(S31008)
ICrl9Ni9
GB 13296
250
三 14
(S31008)
GBrr 14976
200
三28
(S31703)
GB 13296
150
<14
(S31703)
GBrr 14976
100
三28
(S31708)
GB 13296
三20
三 14
(S30409)
S21953
GBrr21833
<12
233
233
223
217
210
203
S22253
GB/T21833
三 12
230
230
230
230
223
217
S22053
GBrr21833
<12
243
243
243
243
240
233
S25073
GBrr21833
<12
296
296
296
280
267
257
116
116
116
111
104
97
94
91
88
85
83
77
67
54
44
36
27
23
1, 2
S30408
GBrr 2771
<28
116
97
88
82
77
72
70
67
65
63
62
60
57
53
44
36
27
23
2
99
99
99
94
88
83
80
77
75
1, 2
99
82
74
69
65
62
59
57
55
2
116
116
116
114
106
100
96
94
93
91
90
89
82
69
55
43
32
26
1, 2
116
99
91
84
79
74
71
70
69
67
66
66
65
62
55
43
32
26
2
S30403
S31608
GBrr 12771
GBrr 1277 1
<28
<28
21
Table 8 (continued)
All owable stress at the following temperatures CC )/MPa
Steel tu be and Wall thickness
Designation
S3 1603
S32168
S30408
S30403
S31608
S31603
S32168
Note
pipe standard
m日1
GB/T 12771
三28
GBIT 12771
GBIT24593
GBIT24593
GBIT24593
GB/T24593
GBIT24593
<20
100
150
200
250
300
350
400
450
99
99
99
92
85
81
77
73
71
1, 2
99
82
74
68
63
60
57
54
53
2
116
1I 6
1I 6
111
104
97
94
92
89
88
86
71
49
37
28
21
15
11
1, 2
116
97
88
82
77
72
70
68
66
65
64
63
49
37
28
21
15
11
2
116
116
1I 6
111
104
97
94
91
88
85
83
77
67
54
44
36
27
23
1, 2
116
97
88
82
77
72
70
67
65
63
62
60
57
53
44
36
27
23
2
99
99
99
94
88
83
80
77
75
1, 2
99
82
74
69
65
62
59
57
55
2
)[ 6
1I 6
1I 6
114
106
100
96
94
93
91
90
89
82
69
55
43
32
26
1, 2
11 6
99
91
84
79
74
71
70
69
67
66
66
65
62
55
43
32
26
2
99
99
99
92
85
81
77
73
71
1, 2
99
82
74
68
63
60
57
54
53
2
116
1I 6
1I 6
1I 1
104
97
94
92
89
88
86
71
49
37
28
21
15
11
1, 2
116
97
88
82
77
72
70
68
66
65
64
63
49
37
28
21
15
11
2
500
525
550
575
600
625
650
675
700
725
750
775
800
三28
::::4
<4
三4
三4
三4
S21953
GBIT 21832
<20
198
\ 98
190
\85
\79
\73
2
S22253
GB1T 2\832
<20
\ 96
\96
196
196
190
185
2
S22053
GBIT2 1832
三20
207
207
207
207
204
198
2
Notel: The allowable stress in Ihis row is on1y app li cab1e 10 the componenls for which slight permanent deformation is allowable, but nol applicable to flanges or other occasions for which slight permanent
deformation will cause leakage or faults .
Note 2: The allowable stress in this row has already been multiplied by the welded joint coeffic ient of 0.85 .
22
Table 9
Allowable Stress of Carbo n Steel and Low Alloy Steel Forgings
Strength in dex at
All owable stress at 出e following temperatures CC)爪1Pa
Nominal
Steel forgi ng
room temperature
Application conditi on
Des ignation
thickness
Note
Rm
R'L
MPa
MPa
<100
410
>100- 200
standard
<20
100
150
200
250
300
350
400
425
450
475
235
152
140
133
124
111
102
93
86
84
61
41
400
225
148
133
127
11 9
107
98
89
82
80
61
41
>200- 300
380
205
137
123
117
109
98
90
82
75
73
61
41
Normalized, normal ized p1us
< 100
510
265
177
157
150
137
124
115
105
98
85
61
41
tempered
>100- 300
490
245
163
150
143
133
121
111
10 1
95
85
61
41
Normalized, normalized plus
< 100
480
305
178
178
167
150
137
123
117
11 0
93
66
43
tempered , quenched plus
>100-200
470
295
174
174
163
147
133
120
113
107
93
66
43
tempered
>200- 300
450
275
167
167
15 7
143
130
11 7
110
103
93
66
43
<300
530
370
196
196
196
196
196
190
183
173
167
13 1
84
49
>300- 500
510
350
189
189
189
189
187
180
173
163
157
131
84
49
>5 00- 700
490
330
181
181
181
181
180
173
167
157
150
131
84
49
5300
620
470
230
230
230
230
230
230
230
230
230
11 7
11 7
>300- 500
610
460
226
226
226
226
226
226
226
226
226
11 7
117
<500
620
450
230
230
230
230
230
230
230
230
三300
620
440
230
230
230
230
230
230
223
213
197
150
111
79
50
>300- 500
610
430
226
226
226
226
226
226
223
2 13
197
150
111
79
50
Normalized p1us tempered,
三300
480
280
178
170
160
150
143
133
127
120
117
113
110
88
58
37
quenched p1us tempered
>300-500
470
270
174
163
153
143
137
127
120
113
110
107
103
88
58
37
Normalized p1us tempered ,
<300
490
290
181
180
170
160
153
147
140
133
130
127
122
80
54
33
quenched plus tempered
>300- 500
480
280
178
173
163
153
147
140
133
127
123
120
117
80
54
33
Normalized plus tempered,
三300
510
310
189
187
180
173
170
167
163
160
157
147
11 9
89
61
46
37
quenched plus tempered
>300- 500
500
300
185
183
177
170
167
163
160
157
153
147
119
89
61
46
37
m自1
500
525
550
575
600
Normalized , normalized plus
20
Nsrr 47008
tempered
35
16Mn
20MnMo
20MnMoNb
Nsrr 47008
NS/T 47008
Nsrr 47008
Nsrr 47008
Quenched plus tempered
Quenched p1us tempered
20MnNiMo
Nsrr 47008
Quenched p1us tempered
35CrMo
NBrr 47008
Quenched plus tempered
15CrMo
14Cr l Mo
12Cr2MoI
NBrr 47008
N Brr47008
NB /T 47008
23
Tab le 9 (co ntinue d)
Strength in dex at
A l\ owable stress at the fo l\ owing temperatures CC)岛1Pa
Nom inal
St巳e l forging
room temperature
App li cation condition
Des ignation
thickness
standard
Note
Rm
RcL
MPa
MPa
盯1 盯1
12Cr l MoV
12Cr2Mo I V
12Cr3Mo IV
<20
100
150
200
250
300
350
400
425
450
475
500
525
550
575
Normalized plus tempered ,
<300
470
280
174
170
160
153
147
140
133
127
123
120
117
113
82
59
41
quenched plus tempered
>300- 500
460
270
170
163
153
147
140
133
127
120
11 7
113
11 0
107
82
59
41
Normalized plus tempered,
<300
590
420
2 19
2 19
2 19
219
219
219
219
219
219
193
163
134
104
72
quenched plus tempered
>300- 500
580
410
2 15
215
2 15
21 5
215
215
2 15
215
215
193
163
134
104
72
Normal ized p1us tempered,
<300
590
420
2 19
2 19
2 19
219
219
219
2 19
219
219
193
quenched plus tempered
>300- 500
580
4 10
2 15
215
2 15
21 5
2 15
215
215
215
215
193
主500
590
390
2 19
2 19
219
219
2 17
213
2 10
190
136
107
83
62
46
35
<100
480
305
178
178
167
150
137
123
117
>100- 200
470
295
174
174
163
147
133
120
11 3
>200- 300
450
275
167
167
157
143
130
117
11 0
三300
530
370
196
196
196
196
196
190
183
>300- 500
510
350
189
189
189
189
187
180
173
>500- 700
490
330
181
18 1
181
181
180
173
167
600
NBrr 47008
NBrr 47008
NBrr 47008
Normalized plus t巳mp ered ，
ICr5Mo
NBrr 47008
quenched plus tempered
16MnD
20MnMoD
NBrr 47009
NBrr 47009
Quenched plus tempered
Quenched plus tempered
08 J\，仙N i MoVD
NBrr 47009
Quenched plus tempered
三300
600
480
222
222
222
222
10Ni3MoVD
NBrr 47009
Quenched plus tempered
<300
600
480
222
222
222
222
<200
440
280
163
163
157
150
143
137
127
09MnNiD
Nsrr 47009
Quenched plus tempered
>200- 300
430
270
159
159
150
143
137
130
120
三300
460
260
170
08Ni3D
NB/T 47009
Quenched plus tempered
Notel: The forgings sha l\ not be used for the welded structures.
24
26
18
6. 1. 2 The 20MnNiMo , 12Cr2Mo 1V and 12Cr3MolV steel forgings as well as all the cryogenic steel
forgings specified in NB/T 47009 shall be forged with the steel made through external refining.
6. 1.3 The grade of steel forgings shall be determined in the design document and shall be indicated
on the dra\νing (attach the grade symbol after the designation , like 16MnlI and 09MnN iD III). The
following steel forgings shall adopt the Grade III or Grade 肌T.
a)
The cylinder, ring and bowl forgings used for the cylinder body and head ofvessels;
的
The low alloy steel forgings with nominal thickness larger than 300mm;
c) The low alloy steel forgings with the lower limit value of standard tensile strength greater
than or equal to 540MPa and the nominal thickness larger than 200mm;
o
d) The cryogenic steel forgings with application temperature less than -20 C and nominal
thickness larger than 200mm.
6. 1. 4 For 20MnMoNb , 20MnNiMo , 12Cr2MolV and 12Cr3MoIV steel forgings of Grade III or
Grade IV used for design tempera阳re larger than 300'C , the requirements for conducting high temperature
tensile test on steel forgings at design temperature in batches (for Grade III) or piece by piece (for
Grade IV) shall be specified in the design document, and the yield strength value is detailed in Appendix
B.
6. 1. 5 For 12Cr2Mol , 12Cr2MoIV and 12Cr3MoIV steel forgings used for the temper embrittlement
resistance requirements , the special requirements in aspects of chemical composition and mechanical
propelties shall be indicated in the technical documents.
6. 1.6 The lower limit of application temperature of the steel forgings shall be in accordance with
those specified in Table 10.
Table 10 Lower Limit of Application Temperature of Steel Forgings
Designation
Nominal thickness , mm
Requirements for impact test temperature
Lower limit of application temperature, 'C
Steel forgings used at intermediate and nom1al temperatures
20
35
<300
。
Conducting impact test at -20'C
- 20
三 100
>100-300
16Mn
Conducting impact test at O'C
。
Conducting impact test at 20'C
20
Conducting impact test at O'C
。
Conducting impact test at - 20'C
20
Conducting impact test at O'C
。
Conducting impact test at - 20'C
20
三300
20MnMo
三700
20MnMoNb
三500
Conducting impact test at O'C
。
20MnNiMo
三 500
Conducting impact test at - 20'C
20
35CrMo
三 500
Conducting impact test at O'C
20
Steel forgings used at low temperate
16MnD
::;100
Conducting impact test at - 45'C
45
>100-300
Conducting impact test at - 40'C
40
25
Table 10 (continued)
Oesignation
Nominal thickness , mm
Requirements for impact test temperature
Lower limit of application temperature, 'C
Steel forgings used at low temperate
三300
Conducting impact test at -40'C
一 40
>300-700
Conducting impact test at - 30'C
-30
08MnNiMoVO
三300
Conducting impact test at -40'C
40
10Ni3MoVO
三300
Conducting impact test at -50'C
- 50
09MnNiO
三300
Conducting impact test at -70'C
一 70
08N i3 0
三300
Conducting impact test at - 100'C
一 100
20沁1n沁100
Note: It shall be indicated in the design document ifthe impact tests at -20'C are conducted for 20 , 16Mn and 20MnMo steel forgings
6.2
High Alloy Steel Forgings
6.2.1 The standards, nominal thickness range and allowable stress of steel forgings shall be in
accordance with those specified in Table 11. The delivery condition of steel forgings shall comply
with those specified in NB/T 47010.
6.2.2 All the high alloy steel forgings shall be forged with such steel having passed through external
refining.
6.2.3 The grade of steel forgings shall be determined in the design document and shall be indicated
on the drawîng (attach the grade symbol after the designation , like S30408II). The cylinde巳 ring and
bowl forgings used for the cylinder body and head ofvessels shall adopt the Grade III or Grade N.
6.2 .4 The lower limit of application temperature of the steel forgings shall be in accordance with
following provisions:
7
7.1
a)
Shall be O.C for the ferritic type S 113 06 steel forgings ;
b)
Shall be -20.C for the austenitic-ferritic type S21953 , S22253 and S22053 steel forgings;
c)
The austenitic steel forgings shall meet the requ irements of3. 7 .2.
Steel Bars for Studs (Including Bolts) and Nuts
Carbon Steel and low Alloy Steel Bars
7. 1. 1 The standards of steel bars as well as the application condition and allowable stress of studs
shall be in accordance with those specified in Table 12.
7. 1.2 The billets used for carbon steel studs shall be calTied out with the normalizing heat treatment,
the billets used for low alloy steel studs shall be carried out with quenching and tempering heat
treatment according to Table 13.
7. 1.3 The billets used for carbon steel and low alloy steel studs shall be carried out with mechanical
propel1y test after being heat treated , and the specific requirements are as follows:
a) The stud billets of the same designation , smelting furnace number, cross section dimension ,
heat treatment system and same fabrication time shall be regarded as one batch. One billet shall be
selected from each batch for the testing.
26
Table 11
Allowable Stress of High A lI oy Steel Fo r g ings
Steel forg ing
Nominal thickness
standard
π1 盯1
三20
100
150
200
250
300
350
400
S I13 06
NBrr47010
<150
137
126
123
120
11 9
117
11 2
109
137
137
137
130
122
114
111
S30408
NB/T 47010
<300
137
114
103
96
90
85
117
11 7
117
110
103
11 7
98
87
81
137
137
137
137
114
137
All owable stress at the fo llowing temperatures ('C)IMPa
Note
Designatio日
S30403
S30409
S3 1008
S31608
S31603
S31668
S31703
S32168
S39042
NBrr 47010
NBrr 47010
NBrr 47010
NBrr 47010
NBrr47010
NBrr 47010
NBrr 47010
NBrr 47010
NBrr 47010
450
500
525
550
575
600
625
650
675
700
107
103
100
98
91
79
64
52
42
32
27
82
79
76
74
73
71
67
62
52
42
32
27
98
94
91
88
76
73
69
67
65
130
122
114
111
107
103
100
98
91
79
64
52
42
32
27
103
96
90
85
82
79
76
74
73
71
67
62
52
42
32
27
137
137
137
134
130
125
122
119
115
11 3
105
84
61
43
31
23
137
121
111
105
99
96
93
90
88
85
84
83
81
61
43
31
137
137
137
134
125
118
113
III
109
107
106
105
96
81
65
137
117
107
99
93
87
84
82
81
79
78
78
76
73
117
11 7
117
108
100
95
90
86
84
117
98
87
80
74
70
67
64
62
125
11 8
113
111
109
107
79
~300
725
750
775
800
19
15
12
10
8
23
19
15
12
10
8
50
38
30
65
50
38
30
三300
<300
三300
<300
137
137
137
134
137
117
107
99
93
87
84
82
81
130
130
130
130
125
11 8
113
111
109
130
117
107
99
93
87
84
82
81
137
137
137
130
122
11 4
111
108
105
103
101
83
58
44
33
25
18
13
137
114
103
96
90
85
82
80
78
76
75
74
58
44
33
25
18
13
147
147
147
147
144
131
122
147
137
127
117
107
97
90
三300
三300
<300
三300
S21953
NBrr 47010
< 150
219
2 10
200
193
187
180
S22253
NBrr 47010
< 150
230
230
230
230
223
217
S22053
NBrr 47010
< 150
230
230
230
230
223
217
Note: The allowable stress in this row is only applicable to the components for which sli ght permanent deformation is allowable , but not applicable to flan ges or other occasions for which slight permanent
deformation will cause leakage or faults.
27
Tab le 12
A ll owable Stress of Carbo n Steel an d Low A ll oy Steel Studs
Strength index at
All owable stress at the followi ng temperatures CC)IMPa
Steel bar
Application
Stud specification
standard
cond ition
mm
room temperature
Designatioll
20
35
40Mn B
GBrr 699
GBrr 699
MPa
MPa
<M22
4 10
M24- M27
<20
100
150
200
250
300
350
245
91
81
78
73
65
60
54
400
235
94
84
80
74
67
61
56
<M22
530
315
117
105
98
91
82
74
69
M24- M27
510
295
11 8
106
100
92
84
76
70
<M22
805
685
196
176
17 1
165
162
154
143
126
M24- M36
765
635
212
189
183
180
176
167
154
137
<M22
835
735
210
190
185
179
176
168
157
140
M24- M36
805
685
228
206
199
196
193
183
170
154
<M22
805
685
196
176
17 1
165
162
157
148
134
M24- M36
765
635
212
189
183
180
176
170
160
147
三M22
700
550
157
141
137
134
131
129
124
M24- M48
660
500
167
150
145
142
140
137
M52- M56
660
500
185
167
161
157
156
152
425
450
475
500
116
111
107
103
79
132
123
11 8
11 3
108
79
146
137
131
126
111
79
400
Normalized
Quenched plus
GBrr 3077
Quenched plus
GBrr 3077
tempered
Quenched plus
40Cr
RcL
Nonnalized
tempered
40MnVB
Rm
GBrr 3077
tempered
Quenched plus
30CrMoA
GBrr 3077
tempered
28
525
550
575
600
Strength index at
Allowab \e stress at the following temperatures CC)IMPa
Steel bar
Application
Stud specification
standard
cond ition
mm
room temperature
Designation
Quenched pl us
35CrMoA
Quenched plus
MPa
MPa
三M22
835
M24-M48
<20
100
150
200
250
300
350
400
425
450
475
500
735
210
190
185
179
176
174
165
154
147
140
111
79
805
685
228
206
199
196
193
189
180
170
162
150
111
79
M52-M80
805
685
254
229
221
218
2 14
210
200
189
180
150
111
79
M85- M105
735
590
219
196
189
185
181
178
171
160
153
145
111
79
M52-M105
835
735
272
247
240
232
229
225
218
207
201
M110- M140
785
665
246
22 1
214
210
207
203
196
189
183
三M22
835
735
2 10
190
185
179
176
174
168
160
[56
151
141
M24- M48
835
735
245
222
216
209
206
203
196
186
181
176
M52-M105
805
685
254
229
221
218
2 14
210
203
196
191
M1 10- M140
735
590
219
196
189
185
181
[78
174
167
M52- M140
930
825
306
291
28 1
274
267
257
244
<M2 2
590
390
111
101
97
94
92
91
90
M24-M48
王 90
390
130
118
11 3
109
108
106
10S
525
550
131
72
39
168
13 1
72
39
185
176
13 1
72
39
164
160
153
13 1
72
39
87
84
81
77
62
46
101
98
95
83
62
46
575
600
3S
26
18
3S
26
18
GB /T 3077
tempered
Quenched plus
25Cr2MoVA
RcL
GB /T 3077
tempered
35CrMoVA
Rm
GB /T 3077
tempered
Quenched plus
40CrNiMoA
GB /T 3077
tempered
S45 110
Quenched plus
GB/T 122 1
(ICr5Mo)
tempered
Note: The des ignations given in parentheses are the old ones.
29
Table 13 Mechanical Properties of Low Alloy Steel Studs
Designation
40MnB
40MnVB
40Cr
30CrMoA
35CrMoA
35CrMoVA
25Cr2MoVA
Quenching p1us tempering, and
Specification
Rm
RcL (RpO Ù
A
O.C K几
tempering temperature, 'C
盯1口1
MPa
MPa
%
J
三岛。2
之805
2二685
主 14
主41
M24-M36
主765
主 635
:s如122
>835
主735
2: 13
主41
M24-M36
主805
主685
<M22
主805
主685
M24-M36
>635
2: 14
2:41
主765
<M22
>700
2: 550
M24-M56
>660
>500
>16
>60
三M22
>835
>735
M24-M80
>805
主685
M85-M105
>735
>590
M52-MI05
>835
三735
Mll0-M140
>785
主665
<M48
2: 835
2: 735
M52-MI05
主805
;三685
M110-M140
之735
>590
2: 550
主 550
主550
>600
主 560
主600
主620
2: 14
>54
>47
>13
>47
主 14
主47
40CrNiMoA
主520
M52-140
主930
;三 825
2: 13
>60
S45110 (ICr5Mo)
三650
<M48
>590
>390
主 18
主47
Note: Th巳 designation s given in parenthes巳s are the old ones.
b) The test specimens shall be taken in the longitudinal direction of the billet. For the billet
with diameter no larger than 40mm , the longitudinal axis of test specimen shall be at the center of this
billet; for the billet with diameter larger than 40mm , the longitudinal axis of test specimen shall be at
half place of the billet radius. The distance from the test specimen location to both ends of the billet
shall not be less than the billet radius , except the ends ofthe tensile test specimen (or gripping parts).
c) One tensile test specimen shall be adopted from each carbon steel stud billet. One tensile test
specimen and three impact test specimen shall be adopted from each low alloy steel stud billet. The
methods of tensile test shall be in compliance with the provisions of GB/T 228 and the tensile test
specimen shall adopt the No. R4 (d= 10mm, Lo=50mm) test specimen. The methods of impact test
shall be in compliance with the provisions of GB/T 229 and the impact test specimens shall adopt the
standard size V notch specimens.
d) Among the tensile test results of carbon steel stud billets, the tensile strength and yield
strength shall be in accordance with those specified in Table 12 , the percentage elongation after
fracture index shall be: A主25% for 20 steel and A三20% for 35 stee l. The tensile and impact test results
of low alloy steel stud billets shall be in accordance with those specified in Table 13 , in this table , the
specified impact power is the average value of the test results of three test specimens , the test result of
one test specimen only may be less than the specified value , but shall not be less than 70% of the
specified value.
e)
30
When the tensile test results fail to meet requirements specified , another two tensile test
specimens shall be adopted from the same billet and be retested with all three terms of properties. If
any one value only in the retest results fails to meet the requirements specifi时， this batch of billets
shall be judged as unacceptable materia l.
。
When the impact test results fail to meet the requirements specified , another three impact test
specimens shall be adopted from the same billet and be retested. The average value of impact power
of six test specimens from two groups shall not be less than the specified value in Table 13 . The
impact power of any two test specimens only may be less than the specified value , but only one of
them may be less than 70% of the specified value , otherwise, this batch of billets shall be judged as
unacceptable materia l.
The whole batch of billets judged as unacceptable material may be retreated by heat trea伽lent
g)
according to those specified in 7.1.2 , then , the new test specimens shall be intercepted for the tests in
accordance with the procedures above.
7. 1.4
The lower limit of application temperature and the relevant technical requirements of the
carbon steel and low alloy steel studs shall conform to the following provisions:
的
The lower Ii mit of application temperature of the 20 steel studs shall be - 20 'C , that of the
35 , 40MnB , 40MnVB and 40Cr steel studs shall be O'C; that ofsteel studs ofother designations shall
be -20 'C.
Where the application temperature ofthe 30CrMoA, 35CrMoA and 40CrNiMoA steel studs
b)
is less than - 20'C , these studs shall be carried out with the low temperature impact test at the
application temperature. 1n this case , the impact test temperature O'C listed in Table 13 shall be
changed into the application temperature , and the low temperature impact power index shall be in
accordance with those specified in Table 14;
As for the 30CrMoA and 35CrMoA steels for stud use and with application tempera阳re less
c)
than -40 'C~ -70 'C ， the phosphorus content and sulphur content in their chemical composition (heat
analysis) shall be: P三0.020% and S三0.010%; as for the 40CrNiMoA steel for stud use and the 30CrMoA
steel for stud use and with application temperature less than -70'C~-100'C ， the phosphorus content
and sulphur content in their chemical composition (heat analysis) shall be: P三0.015% and S三0.008%.
Table 14 Impact Power of Low Temperature Studs
7. 1.5
Designation
Stud sp巳cificationlmm
Minimum impact test temperaturer C
KV2汀
30CrMoA
三M56
100
三41
35CrMoA
三M56
70
>41
40CrNiMoA
M52-M64
50
:::47
For nut steels matching with the stud steels may be selected in accordance with Table 15.
Other nut steels may also be selected upon service experiences. For the nut steels under quenched plus
tempered conditions , the tempering temperature shall be larger than that ofthe matching stud steels.
Table 15 Steels Used for Carbon Steel and Low Alloy Steel Nuts
Stud designation
Nut steel
Steel
Steel material standard
Application condition
Application temperature range , 'C
20
10. 15
GB/T 699
Normalized
20- 350
35
20.25
GB/T699
Normalized
。-350
31
Table 15 (continued)
Nut steel
Stlld designation
Ste巳i
Steel material standard
Application condition
Application temperature range, 'C
40MnB
40Mn, 45
GBff 699
Normalized
。-400
40MnVB
40Mn, 45
GBff 699
Normalized
。-400
40Cr
40~也1， 45
GBff699
Normalized
。-400
40Mn , 45
GBff 699
Normalized
一 10 -4 00
30CrMoA
GBff 3077
Quenched plus tempered
100-500
40Mn, 45
GBff 699
Normalized
一 10-4 00
30CrMoA, 35CrMoA
GBff3077
Q阳
35CrMoA, 35CrMoVA
GBff 3077
QlIenched plus tempered
一 20 -425
30CrMoA, 35CrMoA
GBff 3077
Quenched plus tempered
一 20-500
25Cr2MoVA
GBff 3077
Quenched plus tempered
20-550
40CrNiMoA
35CrMoA, 40CrNiMoA
GBff 3077
Quenched plus tempered
一 50-350
S45110 (l Cr5Mo)
S45110 (l Cr5Mo)
GBff 1221
Que叫1ed
plus tempered
一 20-600
30CrMoA
35CrMoVA
35CrMoVA
25Cr2MoVA
70-500
Note: The designations given in parentheses are the old ones
7.2
High Alloy Steel Bars
7.2.1 The standards of steel bars as well as the application condition and allowable stress of studs
shall be in accordance with those specified in Table 16.
7.2.2 The billets used for different designations of studs shall be carried out with the tensile test, and
the test requirements and results shall be in compliance with the provisions of GB/T 1220.
7.2.3 The lower Ii mit of application temperature of the high alloy steel stud shall conform to the
following provisions:
a)
The lower limit of application temperature ofthe S42020 steel studs shall be O.C;
的
The application temperature of austenitic steel studs shall meet the requirements of3 .7.2.
7.2.4 For nut steels matching with the stud steels may be selected in accordance with Table 17.
Other nut steels with service experiences may also be selected. For the nut steels under quenched plus
tempered conditions , the tempering tempera阳re shall be larger than that of the matching stud steels.
7.2.5 The steel bars that pass through solution treatment and strain hardening treatment and are used
for S30408 studs shall be adopted in accordance with GB/T 4226. The stud billets of the same
smelting furnace number, cross section dimension , solution treatment system and strain hardening
technology shall be regarded as one batch. One billet shall be selected 企om each batch to do the tests.
One tensile test specimen and piece impact test specimen (if necessary) shall be adopted from each
billet. The test specimen shall be intercepted in the longitudinal direction of billet, and the longitudinal
axis of test specimen shall be near to the half place of the billet radius as much as possible. The
mechan ical properties of stud b il\ ets shall meet the following requirements:
a) The tensile prope此y of stud billet and the allowable stress of stud shall be in accordance
with those specified in Table 18;
32
Tab le 16
Allowable Stress of High A ll oy Steel Studs
Strength index at
Allowable stress at the fo llowing temperatures CC)岛1Pa
Stud specification
Steel bar
Application condition
Designation
stan dard
S42020
GBrr 1220
盯1 町1
S31008
S31608
S32168
GBrr 1220
GBrr 1220
GBrr 1220
GBrr 1220
Rm
Rp<l.2
MPa
MPa
<M22
640
M24- M27
450
500
550
600
650
700
74
71
69
66
58
42
27
82
79
76
74
71
62
42
27
90
87
84
83
80
78
61
31
99
96
93
90
88
85
83
61
93
87
82
79
77
76
75
73
107
99
93
87
84
82
81
79
107
97
90
84
79
77
75
73
114
103
96
90
85
82
80
78
<20
100
150
200
250
300
350
400
440
126
11 7
111
106
103
100
97
91
640
440
147
137
130
123
120
117
113
107
<M22
520
205
128
107
97
90
84
79
77
M24- M48
520
205
137
114
103
96
90
85
<M22
520
205
128
113
104
98
93
M24- M48
520
205
137
121
111
105
<M22
520
205
128
109
101
M24- M48
520
205
137
117
<M22
520
205
128
M24- M48
520
205
137
750
800
19
12
8
31
19
12
8
68
50
30
78
73
50
30
71
69
44
25
13
76
74
44
25
13
Quenched plus tempered
(2Cr13)
S30408
room temperature
Solid solution
Solid solution
Solid sol ution
Solid solution
Note: The designations given in parentheses are the old ones
33
Table 17
Steels Used for High Alloy Steels Nuts
Nut steel
Stud designation
Steel
Steel material standard
Application condition
Application temperaω re range, .C
S42020
S42020
GBrr 1220
Quenched plus tempered
。-400
S30408
S30408
GBrr 1220
Solid solution
-253-700
S31008
S31008
GBrr 1220
Solid solution
253-800
S31608
S31608
GBrr 1220
Solid solution
一 253 -700
S32168
S32168
GBrr 1220
Solid solution
- 253- 700
Table 18
Steels for Studs Through Strain Hardening Treatment
Stud specification
Rm
RrfJ .2
A
Allowab1e stress at t巳mperature 三50.C
口1 口1
MPa
MPa
%
MPa
主22
>800
;三600
2: 13
171
M24- M27
三750
主510
主 15
170
Designation
S30408
-100 .C , the \ow temperature impact test
shall be carried out for the stud billet at the app\ication temperature , and the \ow temperature impact
b)
Where the application temperature is \ess than
power index shall be : KV;立4 lJ;
c)
The other requirements of the tensi\e test and impact test shall be made reference to the
provisions of 7.1 .3.
34
AA
句 NU
da
mm
x-w
pw
-w-aarELV
叮
Supplementary Requirements Pertaining to Materials
A.l
General Provisions
A. 1.1 As the supplementary provisions to the text ofthis standard , this appendix sets forth requirements
for the following steels:
a) Steels designated in this standard , but not listed in any material standard (national standard
or professional standard) yet.
b)
Steels not designated in this standard;
A.1.2 Steels that comply with the provisions ofthis appendix shall also meet the relevant provisions
ofthis standard.
A. 1.3 When the steels not designated in this standard are adopted , the steel fabrication organization
shall pass the technical review according to TSG R0004 prior to the trial use.
A. 1.4 When the imported steels are adopted , the steels shall be in compliance with those specified in
TSG R0004 .
Low Alloy Steel Plates
A.2
The technical requirements of 12Cr2MolVR steel plates are as follows:
A.2.1
a) The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A. l .
TableA.l
Chemi cal compositionl%
C
Si
Mn
P
S
Cr
Mo
。 11 -0 .1 5
三0. 10
0 .3 0- 0.60
三0 . 010
三0.005
2.00- 2 .5 0
0.90- 1.1 0
Chemical compositionl%
V
Cu
Ni
Nb
Ti
B
Ca
0 .2 5- 0 .3 5
三0 .2 0
三0 . 25
<0.07
三0 . 030
三0 . 0020
三0 . 015
的
The permissible deviation of the chemical analysis offinished steel plates shall be: +0.003%
for P and +0.002% for S, the other elements shall be in accordance with those specified in Table 2 of
GB/T 222 or be decided upon agreement between the supplier and the purchaser;
c) The steel plates shall be delivered at the normalized (the accelerated cooling by water
cooling is allowable) plus tempered heat treatment condition, and the tempering temperature shall not
be less than 675 oC ;
d) Steel plates shall be carried out with the mechanical property test according to the heat
treated sheet one by one , and the test results shall be in accordance with those specified in Table A. 2.
e)
As required by the purchaser, the steel plates may be carried out with bending test, the
diameter of bending mandrel shall be three times of the specimen thickness , and the bending angle
35
shall be 180 0 . After the bending test, the extemal surface of bended test specimen shall be free from
any macroscopic crack.
TableA.2
Impact test (transverse)
Tensile test (transverse)
Normal thickness
Rm
ReL
A
Test temperature
KV2
MPa
MPa
%
℃
J
590-760
;二415
> 17
-20
主60
口1 日1
30-120
ηThe special requirements of steel plates in aspects of chemical composition and mechanical
properties shall be decided upon the agreement between the supplier and the purchaser;
g) Matters not covered in this article all shall be in compliance with the relevant provisions of
GB 713 .
A.2.2
The technical requirements of 15MnNiNbDR steel plates are as follows:
a) The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A .3.
TableA.3
Chemical compositionl%
C
Si
Mn
P
S
Ni
Nb
三0 .18
0.15-0.05
1. 20- 1. 60
三0.020
主0.010
0 .3 0- 0.70
0.015-0.040
b) The steel plates shall be delivered at the nonnalized or normalized plus tempered heat
treatment condition.
c) The mechanical property test results of steel plates shall be in accordance with those
specified in Table A.4.
Table A .4
Tensile test (transverse)
Impact test (transverse)
Normal thickness
Rm
RCL
A
Tcst temperature
K几
MPa
MPa
%
'C
J
6-60
490-620
>320
>21
一 100
三47
>60- 100
480-6 10
~300
mm
d) As required by the purchase巳 the steel plates may be carried out with bending test , the
diameter of bending mandrel shall be three times of the specimen thickness , and the bending angle
shall be 180 0 . After the bending test , the extemal surface of bended test specimen shall be free from
any macroscopic crack.
e)
Matters not covered in this article all shall be in compliance with the relevant provisions of
GB 353 1.
A.2.3
a)
The technical requirements of 08Ni3DR steel plates are as follows:
The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A.5.
36
TableA.5
Ch巳mical compositionl%
C
Si
Mn
P
S
Ni
Mo
V
三0.10
0 .1 5-0 .3 5
0 .3 0- 0.80
三0.015
三0.010
3.25-3.70
主0. 12
<0.05
协)
b
The steel plates shall be delivered at the norm
by wa创te创r ∞
c ooling is 剖
a llowable
功) pμlu
山s tempered, or out-line quenched plus tempered heat treatment
conditions , and the tempering tempera阳re shall not be less than 600 "C .
c) The mechanical property test results of steel plates shall be in accordance with those specified
in Table A. 6. The steel plates delivered at the normalized (the accelerated cooling by water cooling is
allowable) plus tempered and out-line quenched plus tempered heat treatment conditions shall be
carried out with the mechanical property test according to the heat treated sheet one by one.
TableA.6
Impact test (transverse)
Tensile test (transverse)
Normal thickness
ReL
Rm
盯1 日1
MPa
MPa
10-16
530- 630
主370
>16-36
530- 630
主360
>36-60
520-620
;二350
A
Test temperatur巳
K几
%
.C
J
>20
-50
主60
d) As required by the purchaser, the steel plates may be carried out with bending test, the
diameter of bending mandrel shall be three times of the specimen thickness , and the bending angle
shall be 180 0 • After the bending test , the extemal surface of bended test specimen shall be 企ee from
any macroscopic crack.
的
Matters not covered in this article all shall be in compliance with the relevant provisions of
GB 353 l.
A.2.4
The technical requirements of 06Ni9DR steel plates are as follows:
a) The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A. 7.
TableA.7
Ch巳mical compositionl%
C
Si
Mn
P
S
Ni
Mo
V
主0 . 08
三0 .3 5
0 .3 0- 0.80
三0.008
三0.004
8.50-10.00
:三0.10
::;0.01
Note: Cr+Cu+Mo三0.50%.
b) The permissible deviation ofthe chemical analysis offinished steel plates shall be: +0.003%
for P and +0.002% for S, the other elements shall be in accordance with those specified in Table 2 of
GB/T 222.
c) The steel plates shall be delivered at the quenched plus tempered heat treatment condition of
the out-line quenching plus tempering, the steel plates with thickness no larger than 12mm may also
be delivered at the double normalized plus tempered condition. The tempering temperature of steel
37
plates shall not be less than 540'C.
d) Steel plates shall be carried out with the mechanical property test according to the heat
treated sheet one by one , and the test results shall be in accordance with those specified in Table A. 8.
TableA.8
Impact test (transverse)
Tensile test (transverse)
Normal thickness
RCL
Rm
mm
MPa
MPa
6-30
A
Test temperature
K几
%
.C
J
>18
一 196
> \0 0
>560
680-820
2: 550
>30-40
e) As required by the purchaser, the steel plates may be carried out with bending test, the
diameter of bending mandrel shall be three times of the specimen thickness , and the bending angle
shall be 180 0 . After the bending test, the external surface of bended test specimen shall be free from
any macroscopic crack.
。孔.fatlers not covered in this article all shall be in compliance with the relevant provisions of
GB 353 1.
A.3
Low Alloy Steel Tubes and Pipes
A 3.1
The technical requirements of 12Cr2Mol steel tubes and pipes are as follows:
a) The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A.9 .
TableA.9
Chemical ∞ mpositionl%
C
Si
Mn
P
S
Cr
Mo
0.08-0.15
::;0.05
0 .4 0- 0.60
三0.025
<0.015
2.00-2.50
0.90- 1.1 0
b) The steel tubes and pipes shall be delivered at the normalized plus tempered heat treatment
condition , and the tempering temperature shall not be less than 700 'C.
c) The mechanical properties of steel tubes and pipes shall be in accordance with those
specified in Table A. l O.
TableA.10
Impact test (Iongitudinal)
Tensile test (Iongitudinal)
Normal wall thickness
mm
三30
d)
Rm
R. L
A
Test temperature
KV2
J
主40
MPa
MPa
%
.C
450- 600
2:280
>22
20
Matters not covered in this article all shall be in compliance with the relevant provisions of
GB 9948.
A.3.2
a)
The technical requirements of 09MnD steel tubes and pipes are as follows :
The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A. ll.
38
TableA.ll
Chemical compositionl%
C
Si
Mn
P
S
Als
三0.12
0.15- 0.3 5
1.1 5- 1.5 0
三0.020
<0.010
主0.015
的
The steel tubes and pipes shall be delivered at the normalized heat treatment condition.
c) The mechanical properties of steel tubes and pipes shall be in accordance with those specified
in Table A. 12. The impact test specimens shall be adopted from the pipe blank, shall be the longitudinal
test specimen and conducted with normalizing heat treatmen t.
TableA.12
1mpact test (I ongitudinal)
Tensile test (I ongitudinal)
,
Normal wall thickness
111m
三8
d)
Rm
RCL
A
Test temperature
KV,
MPa
MPa
%
℃
J
420- 560
2: 270
主25
-50
主47
Matters not covered in this article all shall be in compliance with the relevant provisions of
GB 9948.
The technical requirements of 09MnNiD steel tubes and pipes are as follows :
A.3.3
a) The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A.13 .
TableA.13
Chemical composition/%
C
Si
Mn
P
S
Ni
Nb
Als
主0 . 12
。 15 -0.50
1. 20- 1. 60
三0 . 020
三0.010
0.3 0-0.80
三0 . 04
三0.015
b)
The steel tubes and pipes shall be delivered at the normalized heat treatment condition.
c) The mechanical properties of steel tubes and pipes shall be in accordance with those specified
in Table A. 14. The impact test specimens shall be adopted from the pipe blank, shall be the longitudinal
test specimen and conducted with normalizing heat treatment.
Table A.14
1mpact test (Iongitudinal)
Tensile test (I ongitudinal)
Normal wall thickness
111m
<8
Rm
几L
A
T巳st temperature
Kr斗i
MPa
MPa
%
'C
J
440- 580
主280
>24
一 70
>47
d) Matters not covered in this aJticle all shall be in compliance with the relevant provisions of
GB 9948
A.3 .4
的
The technical requirements of 08Cr2AIMo steel tubes and pipes are as follows:
The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A. 15.
39
TableA.15
Chemical composition!%
C
Si
Mn
P
S
Cr
Al
Mo
0.05-0.10
。 15-0 .40
0.20-0.50
三0 . 025
三0.015
2.00-2.50
0.3 0-0.70
0.3 0-0 .4 0
b) The steel tubes and pipes shall be delivered at the normalized plus tempered heat treatment
condition , and the tempering temperature shall not be less than 680 'C.
c) The mechanical properties of steel tubes and pipes shall be in accordance with those
specified in Table A. 16.
TableA.16
Tensile test (longitudinal)
Normal wall thickness
"
Rm
ReL
A
MPa
MPa
%
400-540
主250
>25
日1 盯1
<8
d) Ma忧ers not covered in this article all shall be in compliance with the relevant provisions of
GB 9948.
The technical requirements of 09CrCuSb steel tubes and pipes are as follows :
A.3.S
a) The chemical composition (heat analysis) of steel shall be in accordance with those specified
in Table A.17.
TableA.17
Chemical composition!%
C
Si
Mn
P
s
Cr
Cu
Sb
<0.12
0.20-0.40
0.35 -0 .65
<0.030
~0 . 020
0.70- 1.1 0
0.25-0.4 5
0.4 0-0.10
b)
The steel tubes and pipes shall be delivered at the normalized heat treatment condition.
c) The mechanical properties of steel tubes and pipes shall be in accordance with those
specified in Table A. 18.
TableA.18
Tensile test (I ongitudinal)
Nonnal wall thickness
Rm
ReL
A
MPa
MPa
%
m盯1
<8
390-550
;,-
245
;,-
25
d) The steel tubes and pipes shall be carried out with the corrosion resistance test, one test
specimen shall be adopted from each of the two sticks of steel tubes/pipes in each batch , and each test
specimen shall be the 10mm-long pipe section. The test specimens shall be soaked for 24h in such
H 2S04 solution with concentration of 50% under the 70 'C 土2 'C homothermal condition. The average
value of corrosion velocity oftwo test specimens shall not be larger than 80 g/m2x h or 140 g/m2x h, and
the specific index shall be indicated in the order contract;
e) Matters not covered in this article all shall be in compliance with the relevant provisions of
GB 9948.
40
Appendix B
(Informative)
Reference Values for Steel Properties at Elevated Temperature
Table B.l
Yield Strength of Carbon Steel and Low A lloy Steel Plates at Elevated Temperature
R川(儿L) at the fo l1 owing temperatures ("C)IMPa
Designation
Q245R
Plate thickness/mm
20
100
150
200
250
300
350
400
450
3- 16
245
220
210
196
176
162
147
137
127
> 16-36
235
210
200
186
167
153
139
129
121
>36- 60
225
200
191
178
161
147
133
123
116
>60-100
205
184
176
164
147
135
123
113
106
> 100- 150
185
168
160
150
135
120
110
105
95
3- 16
345
315
295
275
250
230
2 15
200
190
> 16-36
325
295
275
255
235
215
200
190
180
>36- 60
315
285
260
240
220
200
185
175
165
>60- 100
305
275
250
225
205
185
175
165
155
> 100-150
2&5
260
240
220
200
1&0
170
160
150
> 150- 200
265
245
230
2 15
195
175
165
155
145
10- 36
370
240
320
300
285
270
255
240
> 16- 36
360
330
310
290
275
260
245
230
>36- 60
340
3 10
290
270
255
240
225
210
30-60
400
375
365
360
355
350
340
310
275
>60-100
390
370
360
355
350
345
335
305
270
30-100
390
370
360
355
350
345
335
305
> 100- 150
380
360
350
345
340
335
325
300
6- 60
295
270
255
240
225
210
200
189
179
174
>60- 100
275
250
235
220
210
196
186
176
167
162
> 100- 150
255
235
220
210
199
185
175
165
156
150
6- 100
310
280
270
255
245
230
220
210
195
176
> 100- 150
300
270
260
245
235
220
210
200
190
172
6- 150
3 10
280
270
260
255
250
245
240
230
215
6-60
245
225
210
200
190
176
167
157
150
142
>60- 100
235
220
210
200
190
176
167
157
150
142
30- 120
4 15
395
380
370
365
360
355
350
340
325
6- 16
3 15
290
270
250
230
210
195
> 16- 36
295
270
250
235
215
195
180
>36- 60
285
260
240
225
205
185
175
>60- 100
275
250
235
220
200
180
170
> 100-120
265
245
230
2 15
195
175
165
500
,
Q345R
Q3 70R
18MnMoNbR
13MnNiMoR
ISCrlMoR
14CrlMoR
12Cr2Mo 1R
12CrlMoVR
12Cr2Mo1VR
16 1\也lDR
16MnDR
41
Table B .l (continued)
R同 2 (Red at the fo llowing temperatures CC )岛1Pa
Designation
Plate th ickness/mm
20
100
150
200
6-16
325
300
280
260
> 16-36
3 15
290
270
250
>36-60
305
280
260
240
10-16
370
340
320
300
> 16-36
360
330
310
290
>36-50
350
320
300
280
6- 16
300
275
255
> 16-3 6
28 0
255
>36-60
270
>60-120
07MnMoVR
25 0
300
350
240
230
220
205
235
225
215
205
190
245
225
2 15
205
195
180
260
240
220
2 \0
200
190
175
12-60
490
465
450
435
07扣InNiV D R
12-60
490
465
450
43 5
07MnNiMoDR
12-50
490
465
45 0
435
12MnNiVR
12-60
490
465
450
435
15MnNiDR
15MnNiNbDR
45 0
500
450
500
550
111
106
400
09MnNiDR
Ta ble B.2
Yield St rength of High A lloy Steel Pla t es at Elevated T e mperature
Rp0 2 at the following temp eraωres CC)/MPa
Designation
42
Plate thickness/mm
20
100
150
200
250
300
350
400
S 11306
<25
205
189
184
180
178
175
168
163
S 1\3 48
<25
170
156
152
150
149
146
142
135
S1 1972
<8
275
238
223
2 13
204
196
187
178
S30408
<80
205
171
155
144
135
127
123
119
114
S30403
<80
180
147
131
122
11 4
109
104
101
98
S30409
::;80
205
171
155
144
135
127
123
119
114
111
106
S3 1008
三 80
205
181
167
157
149
144
139
135
132
128
124
S3 1608
<80
205
175
16 1
149
139
131
126
123
121
11 9
11 7
S31603
<80
180
147
130
120
111
105
100
96
93
S3 1668
<80
205
175
161
149
139
I3 1
126
123
121
119
11 7
S3 1708
<80
205
175
161
149
139
13 1
126
123
12 1
11 9
11 7
S3 1703
<80
205
175
161
149
139
131
126
123
121
S32168
<8 0
205
171
155
144
\3 5
127
123
120
11 7
114
III
S39042
三80
220
205
190
175
160
145
\3 5
S21953
<80
440
355
335
325
315
305
S22253
::;80
450
395
370
350
335
325
S22053
<80
450
395
370
350
335
325
Table B. 3
Yield Strength of Carbon Steel and Low Alloy Steel Tubes and Pipes at Elevated Temperature
Rpú2
Designation
(Re L) at the following tempera阳res ("C)加1Pa
Wall thickness/mm
20
100
150
200
250
300
350
400
450
三 16
205
181
172
162
147
133
123
113
98
>16-30
195
176
167
157
142
128
118
108
93
三 16
245
220
210
196
176
162
147
132
117
>16-40
235
210
200
186
167
153
139
124
110
<16
320
290
270
250
230
210
195
185
175
>16-40
310
280
260
240
220
200
185
175
165
<16
205
181
172
162
152
142
132
123
118
113
>16-30
195
176
167
157
147
137
127
118
113
108
<16
235
210
196
186
176
162
152
142
137
132
>16-30
225
200
186
176
167
154
145
136
131
127
>30-50
215
190
176
167
158
146
138
130
126
122
I
<30
280
255
245
235
230
225
220
215
205
194
I
<16
195
176
167
162
157
152
147
142
137
127
>16-30
185
167
157
152
147
142
137
132
127
1181
12CrlMoVG
<30
255
230
215
200
190
176
167
157
150
142
08Cr2AIMo
<8
250
225
210
195
185
175
09CrCuSb
<8
245
220
205
190
500
10
20
16Mn
12CrMo
15CrMo
12Cr2Mol
ICr5Mo
Table B.4
Yield Strength ofHigh Alloy Steel Tubes and Pipes at Elevated Temperature
R问 2 at the following temperatures ("C)爪1Pa
No
Designation
20
100
150
200
250
300
350
400
450
500
550
OCrl8Ni9
205
171
155
144
135
127
123
119
114
III
106
2
00Cr19Nil0
175
145
131
122
114
109
104
101
98
3
OCr 18Ni 1OTi
205
171
155
144
135
127
123
120
117
114
111
4
OCrl7Ni 12Mo2
205
175
161
149
139
131
126
123
121
119
117
5
00C r17N iI4Mo2
175
145
130
120
111
105
100
96
93
6
OCr18Nil2Mo2Ti
205
175
161
149
139
131
126
123
121
119
117
7
OC r1 9N i13 Mo3
205
175
161
149
139
131
126
123
121
119
117
8
00Cr19Ni13Mo3
175
175
165
149
139
131
126
123
121
9
OCr25Ni20
205
181
167
157
149
144
139
135
132
128
124
10
lC r1 9Ni9
205
171
155
144
135
127
123
119
114
III
106
11
S21953
440
355
335
325
315
305
12
S22253
450
395
370
350
335
325
13
S22053
485
425
400
375
360
350
14
S25073
550
480
445
420
400
385
15
S30408
210
174
156
144
135
127
123
119
114
111
106
16
S30403
180
147
13l
122
114
109
104
101
98
17
S31608
210
178
162
149
139
131
126
123
121
119
117
43
I
Table B. 4 (co n ti nued)
R", l2 at the following temperatures CC)/MPa
No
Designation
20
100
150
200
250
300
350
400
450
18
S31603
180
147
130
120
111
105
100
96
93
19
S32168
210
174
156
144
135
127
123
120
117
500
550
114
III
Note: No. 1- 9 are the reference values stated in GB 13296 and GB fT 14976 , No . 10 is the reference val ue stated in GB 9948 and GB
13296 , No. 11 - 14 are the reference values stated in GB fT 2 1833 , and No. 15- 19 are the reference values stated in GB fT 12771
Table B.5
Yield Strength of Carbon Steel and Low Alloy Steel Forgings at Elevated Temperature
R国 2 (几L) at the following temperatures
Nominal thickness
CC )lMPa
Designation
20
自1111
20
100
150
200
250
300
350
400
450
< 100
235
210
200
186
167
153
139
129
121
> 100- 200
225
200
191
178
161
147
133
123
116
>200-300
205
184
176
164
147
135
123
113
106
三 100
265
235
225
205
186
172
157
147
137
> 100-300
245
225
2 15
200
181
167
152
142
132
三 100
305
275
250
225
205
185
175
165
155
> 100-200
295
265
245
220
200
180
170
160
150
>200-300
275
250
235
215
195
175
165
155
145
三300
370
340
320
305
295
285
275
260
240
>300-500
350
325
305
290
280
270
260
245
225
>500-700
330
310
295
280
270
260
250
235
215
S300
470
435
420
405
395
385
370
355
335
>300-500
460
430
4 15
405
395
385
370
355
335
S500
450
420
405
395
385
380
370
355
335
三300
440
400
380
370
360
350
335
320
295
>300-500
430
395
380
370
360
350
335
320
295
<300
280
255
240
225
215
200
190
180
170
160
>300-500
270
245
230
215
205
190
180
170
160
150
<300
290
270
255
240
230
220
210
200
190
175
>300-500
280
260
245
230
220
210
200
190
180
170
<300
310
280
270
260
255
250
245
240
230
215
>300-500
300
275
265
255
250
245
240
235
225
215
<300
280
255
240
230
220
210
200
190
180
170
>300-500
270
245
230
220
2 10
200
190
180
170
160
S300
420
395
380
370
365
360
355
350
340
325
>300-500
4 10
390
375
365
360
355
350
345
335
320
三300
420
395
380
370
365
360
355
350
340
325
>300-500
410
390
375
365
360
355
350
345
335
320
<500
390
355
340
330
325
320
315
305
285
255
500
35
16Mn
20MnMo
20MnMoNb
20MnNiMo
35CrMo
15CrMo
14CrlMo
12Cr2MoI
12CrlMoV
12Cr2MoIV
12Cr3Mo1V
ICr5Mo
44
Table B.5 (continued)
R川 (RcL ) at the following temperattlres CC)爪1Pa
Nomin al thickness
Designation
m 口1
20
100
150
200
250
300
350
:S JOO
305
275
250
225
205
185
175
> 100-200
295
265
245
220
200
180
170
>200-300
275
250
235
215
195
175
165
<300
370
340
320
305
295
285
275
>300-500
350
325
305
290
280
270
260
>500- 700
330
310
295
280
270
260
250
08MnNiMoVD
三300
480
455
440
425
IONi3MoVD
<300
480
455
440
425
<200
280
255
235
225
215
205
190
>200- 300
270
245
225
215
205
190
180
:S300
260
16MnD
20MnMoD
450
500
450
500
550
111
106
400
09MnNiD
08Ni3D
Table B.6
Yield Strength of High Alloy Steel Forgings at Elevated Temperature
R同 2 at the fo llowing temperatures CC)加1Pa
Nom in al thickness
Designation
mm
20
100
150
200
250
300
350
400
SI1306
三 150
205
189
184
180
178
175
168
163
S30408
<300
205
171
155
144
135
127
123
119
11 4
S30403
三300
175
147
131
122
114
109
104
101
98
S3040 9
三300
205
171
155
144
135
127
123
119
114
111
106
S3 1008
三300
205
181
167
157
149
144
139
135
132
128
124
S31608
三300
205
175
161
149
139
131
126
123
121
119
117
S31603
<300
175
147
130
120
111
105
100
96
93
S31668
三300
205
175
16 1
149
139
131
126
123
121
119
117
S3 1703
三300
195
175
161
149
139
131
126
123
121
S32168
三300
205
171
155
144
135
127
123
120
11 7
114
111
S39042
三300
220
205
190
175
160
145
135
S21953
三 1 50
390
3 15
300
290
280
270
S22253
< 150
450
395
370
350
335
325
S22053
< 150
450
395
370
350
335
325
Table B. 7
Yield Strength of Carbon Steel and Low Alloy Steel Studs at Elevated Temperature
R回 2 (RcL) at the following temperatures CC)爪1Pa
Bolt spec i扫巳aU on
Design3tion
mm
20
100
150
200
250
300
350
<M2 2
245
220
2 10
196
176
162
147
M24-M27
235
210
200
186
167
153
139
2二M2 2
315
285
265
245
220
200
186
M24-扣127
295
265
250
230
210
191
176
三M2 2
685
620
600
580
570
540
500
400
450
500
20
35
40MnB
440
45
Ta bl e B. 7 (co ntinu e d )
Rpl.J2 (RcL) at the following temperatures CC)岛1P a
Bolt specification
Designation
口1 口1
20
100
150
200
250
300
350
400
M24-M36
635
570
550
540
530
500
460
410
三M22
735
665
645
625
615
590
550
490
M24-M36
685
615
600
585
575
550
5 10
460
主M22
685
620
600
580
570
550
520
470
M24-M36
635
570
550
540
530
5 10
480
440
〈沁122
550
495
480
470
460
450
435
405
375
沁124-M56
500
450
435
425
420
410
395
370
340
<M2 2
735
665
645
625
615
605
580
540
490
M24-沁180
685
620
600
585
575
565
540
5 10
460
M85-MI05
590
530
5 10
500
490
480
460
430
390
M52-MI05
735
665
645
62 5
615
605
590
560
530
M I I0-MI40
665
600
580
570
560
550
535
510
480
三M48
735
665
645
625
6 15
605
590
560
530
480
M52-M I05
685
620
600
590
580
570
555
530
500
450
M 11 0-MI40
590
530
5 10
500
490
480
470
450
430
390
40CrN iMoA
M52-M140
825
785
760
740
720
695
660
S451 !O (l Cr5Mo)
三M48
390
355
340
330
325
320
315
305
285
255
450
500
550
40MnB
450
500
40MnVB
40Cr
30CrMoA
35CrMoA
35CrMoVA
25Cr2MoVA
Ta ble B.8
Y ield Stre n g th o f Hi g h Alloy St eel Studs a t E levated Tem per atu re
R酬) 2 at the fo llowing temperatures ('C)/MPa
Stud specification
Des ignation
口1 日1
20
100
150
200
250
300
350
400
S42020
三M27
400
410
390
370
360
350
340
320
S30408
三M48
205
171
155
144
135
127
123
119
114
111
106
S31008
:sM48
205
181
167
157
149
144
139
135
132
128
124
S31608
:5 M48
205
175
16 1
149
139
131
126
123
12 1
119
117
S32168
〈岛148
205
171
155
144
135
127
123
120
11 7
114
11 1
Table B.9
Ave ra g e Value of E ndura n ce Strength L imit o f Ca rbon Stee l and Low Alloy Steel Plates a t E levated
Te mperatu re
1 x 105h RD at the fo llowing temperatures ('C)爪1Pa
Designation
400
425
450
475
Q245R
170
127
91
61
Q345R
187
140
99
64
265
176
18MnMoNbR
525
550
575
15CrMoR
20 1
132
87
56
14Cr l MoR
185
120
81
49
179
133
91
69
56
170
123
88
62
201
156
108
12Cr2MoIR
221
12CrlMoVR
12Cr2Mo 1VR
46
500
290
244
600
Table 8 . 13
Modulus of Elasticity of Steels
Modulus of elasticity E at the following temperatures ("C )/ 1OJMPa
Stee1 type
- 196
-100
40
20
100
150
200
250
300
350
400
450
500
205
201
197
194
19 1
188
183
178
170
160
149
205
200
196
193
190
187
183
178
170
160
149
Chrome (0 .5 %- 2%).mo1ybdenum (0 .2%- 0.5%) steel
208
204
200
197
193
190
186
183
179
174
169
164
Chrome (2 .2 5%- 3%)-mo1ybdenum (1. 0%) steel
215
210
206
202
199
196
192
188
184
180
175
169
162
Chrome (5%- 9%)-molybdenum (0.5%- 1. 0%) steel
218
2 13
208
205
20 1
198
195
191
187
183
179
174
168
Chrome stee1 (12%-17%)
206
201
195
192
189
186
182
178
173
166
157
145
131
199
195
189
186
183
179
176
172
169
165
160
156
151
200
194
190
186
183
180
Carbon stee1, carbon-manganese stee1
Manganese-molybdenum stee1 , nicke1 stee1
Austenitic steel (Cr18Ni8- Cr25Ni20)
214
209
209
203
Austenitic-ferritic steel (Cr 18Ni5- Cr25Ni7)
Table A.14
550
600
650
700
161
146
140
650
700
Average Li near Expansion Coefficient of Steels
Average 1inear expansion coefficient a ofbetween the following temperatures ("C) and 20.C/(l 0-6mmfmm . .C)
Stee1 type
一 196
一 1 00
50
O
50
100
150
200
250
300
350
400
450
500
550
600
9.89
10 .39
10.76
11.1 2
11. 53
11.88
12.25
12町 56
12.90
13.24
13.58
13.93
14 .2 2
14 .42
14.62
9.77
10. 16
10.52
10.91
11.1 5
11.3 9
11 .66
11 .90
12.15
12.38
12.63
12.86
13.05
13.18
8.95
9 .29
9 .59
9.94
10.20
10 .4 5
10.67
10.96
11.1 9
11. 41
1 1. 61
11. 8 1
11.97
12 .1 1
15.97
16.28
16.54
16.84
17.06
17 .2 5
17.42
17.6 1
17 .79
17.99
18.19
18.34
18.58
18.71
18.87
18.97
Austenitic stee1 (Cr25Ni20)
15.84
15.98
16.05
16.06
16.07
16 .1 1
16.13
16.17
16.33
16.56
16.66
16.9 1
17.14
Austenitic-ferritic stee1 (CrI8Ni 5- Cr25Ni7)
13.10
13.40
13.70
13 .90
14 .1 0
Carbon stee1, carbon-manganese stee1 ,
manganese.mo1ybdenum stee1,
10w chrome-mo1ybdenum stee1
Medium chrome-mo1ybdenum stee1 (Cr5Mo- C r9 Mo)
Hi gh chrome steel
(CrI2 -C rl7)
Austeniti c steel (Crl8Ni8-{二r19Ni14)
48
14.67
15 .4 5
Appendix C
(Informative)
Unified Numerical Code
Table C .l
Approximate Comparison of Des ignations of High Alloy Steel Plates
GBrr 4237 一 1992
GB 24511-2009
ASME (2007) SA2 40
EN 10028-7:2007
No.
Numerical code
Designation
444
1.452 1
X2CrMoTi 18-2
S30400
304
1.4301
X5CrN i18 -10
S30403
304L
1.4306
X2 CrNi 19-11
S30409
304H
1.4948
X6CrNi 18-10
OCr25Ni20
S3 1008
310S
1.4951
X6CrNi25-20
06Cr l7Ni12Mo2
OCr17Nil2Mo2
S31600
316
1.4401
X5CrNiMo I7-1 2-2
S31603
022Crl7Nil2Mo2
00Crl7Nil4Mo2
S31603
3 16L
1.4404
X2CrNiMo17-1 2-2
10
S31668
06Crl7Nil2Mo2Ti
OCrl8Nil2Mo2Ti
S31635
316Ti
1.4571
X6CrNiMoTiI7-12-2
11
S3 1708
06Cr19Ni13Mo3
OCr19Ni 13Mo3
S31700
317
12
S31703
022Crl9Ni13Mo3
00Crl9Ni13Mo3
S31703
317L
1.4438
X2 CrNiMoI8-1 5-4
13
S32168
06Cr l8Ni ll Ti
OCrl8Nil OTi
S32 100
321
1.4541
X6CrNiTiI8-10
14
S39042
o15Cr21 N i26Mo5Cu2
N08904
904L
1.4539
X INiCrMoCu25-20.5
15
S21953
022Cr19Ni5Mo3Si2N
16
S22253
022Cr22Ni5Mo3N
S31803
1.4462
X2 CrN iMoN22-5-3
17
S22053
022Cr23Ni5Mo3N
S32205
Unified numerical code
New designation
Old designation
UNS code
Type
S II3 06
06Cr13
OCrl3
S4 1008
410S
2
S II3 48
06Cr13AI
OCr13AI
S40500
405
3
S 1I 972
019Crl9M02NbTi
00Crl8Mo2
S44400
4
S30408
06Cr19Nil0
。 Crl8Ni9
5
S30403
022Crl9Nil0
00Crl9Ni lO
6
S30409
07Cr19Ni lO
7
S3 1008
06Cr25Ni20
8
S3 1608
9
00Crl8Ni5Mo3Si2
2205
49
Table C. 2
Approximate Comparison ofDesignations ofHigh Alloy Steel Welded Tubes and Pipes
GBrr 12771 - 2008
GBrr 12771 - 2000
ASME (2007) SA3 12
No
Unified l1 11merical code
New designation
Old designation
UNS code
Type
S30408
06Cr19Nil0
。 Crl8Ni9
S30400
TP304
2
S30403
022Crl9Nil0
00Crl9Nil0
S30403
TP304L
3
S31608
06C rl7 N i12沁102
OCrl7Ni 12M02
S31600
TP316
4
S3 1603
022Cr 17Nil 2M02
00Cr17Ni14M02
S31603
TP3 16L
5
S32168
06Crl8NillTi
OCr18NilOTi
S32100
TP321
Table C. 3
Approximate Comparison of Designations of Dual-phase Seamless Steel Tubes and P ipes
ASME (2007) SA789
GBrr 14976-2002
GBrr 21833-2008
SA790
No
Unified nllmeri cal code
N巳w designation
Old designatio l1
UNS code
S21953
022Crl9Ni5M03Si2N
00Crl8Ni5M03Si2
S31500
2
S22253
022Cr22Ni5M03N
S31803
3
S22053
022Cr23Ni5M03N
S32205
4
S25073
022Cr25Ni7M04 N
S32750
Table C. 4
Approximate Comparison of Des ignations of High Alloy Steel Forgings
ASME (2007) SA I82
ASME (2007) SA3 36
OCrl8Ni9
S30400 (F304)
F304
00Crl 9Ni l0
S30403 (F304L)
F304L
S30409
S30409 (F304日)
F304H
5
S31008
S31009σ310H)
F310H
6
S3 1608
OCr 17Ni 12Mo2
S31600 (F316)
F316
7
S3 1603
00Crl7Nil4Mo2
S31603 (F3 16L)
F316L
8
S3 1668
OCr18Ni12Mo2Ti
9
S31703
3 1703 (F317L)
F321
10
S3 2168
11
S39042
12
S2 195 3
13
S22253
S31803 (F51)
14
S22053
S32205 (F60)
No
50
Type
NBrr 470 10-20 10
NBrr 47010-2010
S I13 06
OCrl3
2
S30408
3
S30403
4
OCr1 8Ni 10Ti
S32 100 (F321)
N08904 (F904L)
OOCr 18Ni5Mo3Si2
Appendix D
(N ormative)
Provisions on Application of Q235 Series Steel Plates
D.l The provisions on the application of Q235B and Q235C steel plates specified in the "Hot-rolled
Plates and Str中 s of Carbon Structural Steels and High Strength Low Alloy Structural Steels" GB/T
3274-2007 are as follows :
a) The chemical composition (heat analysis) of steel shall meet the provisions of the "Carbon
Structural Steels" GB/T 700-2006 , however, the phosphorus content and sulphur content noted in the
quality ce11ificate of steel plates shall meet the requirements ofP三0.035% and S三0 . 035%.
b) The steel plates with thickness larger than or equal to 6mm shall be carried out with impact
test , and the test results shall comply with the provisions of GB/T 700. As for the Q235C steel plates
that are used at temperature less than 20.C ~0.C and with thickness larger than or equal to 6mm, the
vessel fabrication organization shall conduct the additional O.C impact test on transverse specimens ,
the average value of the impact power of three standard impact test specimens shall be: KV:立2刀， the
minimum impact power of one test specimen and the impact power value of subsize impact test
specimens shall comply with the corresponding provisions of GB/T 700;
c) The steel plates shall be carried out with cold bending test, and the acceptance criteria of
cold bending shall comply with the provisions of GB/T 700;
d)
The design pressure ofvessel shall be less than 1. 6MPa;
e) The application temperature of steel plates: shall be 20 .C ~300 .C for Q235B steel plates and
shall be 0.C ~300 .C for Q235C steel plates;
。
The thickness of such steel plate used for the vessel shell: shall not be larger than 16mm for
Q235B 创ld Q235C steel plates. The thickness of such steel plate used for other pressure components:
shall not be larger than 30mm for Q235B steel plates and shall not be larger than 40mm for Q235C
steel plates;
g)
D.2
Shall not be used for the extremely 0 1' highly toxic medium.
The a l\ owable stress of steel plates shall be in accordance with those specified in D. l.
Table D.l
Allowable stress at the fo llowing temperatures CC )加IPa
Thi ckness
Designati on
mm
:<=;20
100
150
200
250
300
3- 6
116
113
108
99
88
81
> 16-30
116
108
102
94
82
75
3- 16
123
120
11 4
105
94
86
> 16-40
123
114
108
100
87
79
Q235B
Q235C
Note: The allowable stress listed for Q235B has been multiplied by the mass coefficient 0.85 . The allowable stress listed for Q235C has
been multiplied by the mass coefficient 0.90.
D.3 The negative thickness tolerance for steel plates shall comply with the corresponding provisions
of GB/T 3274.
51