Guide to EN ISO 14341 – A
EXAMPLE:
ISO 14341–A – G 46 5 M G3Si1
G:
number of this International Standard and classification according to
yield strength and impact energy of 47 J (°C)
welding process type – gas-shielded metal arc welding
46:
tensile properties of all-weld metal (see Table 1)
5:
impact property – requirements of all-weld metal (see Table 2)
M:
shielded gas (acc. to EN ISO 14175)
G3Si1:
chemical composition of wire (see Table 3)
ISO 14341-A:
Table 1
Symbol
35
38
42
46
50
Minimum yield
strength a
Tensile
strength
MPa
MPa
355
380
420
460
500
440 to 570
470 to 600
500 to 640
530 to 680
560 to 720
Minimum
elongation b
%
22
20
20
20
18
a
For yield strength the yield, ReL, is used when yielding occurs, otherwise the 0,2 % proof
strength, Rp0,2, is used.
Gauge length is equal to five times the test specimen diameter.
b
Table 2
Symbol
Temperature for minimum average impact energy of 47 J a,b or 27 J a (°C)
Z
No requirements
5
-50
A a or Y b
+20
6
-60
a
b
0
0
7
-70
2
-20
8
-80
3
-30
9
-90
4
-40
10
-100
Three specimen must reach average impact energy of 47J, only one of them min 32J .
Among five specimen the highest and the lowest values aren’t taken be in account; the average of other thee must be
27 J, only one them can be min 20J. .
Guide to EN ISO 14341 – A
Table 3 — Symbol for chemical composition of wires
Chemical composition, mass % a,b, c
symbol
C
Si
Mn
P
S
G0
Ni
Cr
Mo
V
Cu
Al
Ti+Zr
Any other defined requirements
G2Si
0,06 to 0,50 to 0,90 to
0,14
0,80
1,30
0,025
0,025
0,15
0,15
0,15
0,03
0,35
0,02
0,15
G3Si1
0,06 to 0,70 to 1,30 to
0,14
1,00
1,60
0,025
0,025
0,15
0,15
0,15
0,03
0,35
0,02
0,15
G3Si2
0,06 to 1,00 to 1,30 to
0,14
1,30
1,60
0,025
0,025
0,15
0,15
0,15
0,03
0,35
0,02
0,15
G4Si1
0,06 to 0,80 to 1,60 to
0,14
1,20
1,90
0,025
0,025
0,15
0,15
0,15
0,03
0,35
0,02
0,15
G2Ti
0,04 to 0,40 to 0,90 to
0,14
0,80
1,40
0,025
0,025
0,15
0,15
0,15
0,03
0,35
0,05 to 0,05 to
0,20
0,25
G2Al
0,08 to 0,30 to 0,90 to
0,14
0,50
1,30
0,025
0,025
0,15
0,15
0,15
0,03
0,35
0,35 to
0,75
0,15
G3Ni1
0,06 to 0,50 to 1,00 to
0,14
0,90
1,60
0,020
0,020
0,80 to
1,50
0,15
0,15
0,03
0,35
0,02
0,15
G2Ni2
0,06 to 0,40 to 0,80 to
0,14
0,80
1,40
0,020
0,020
2,10 to
2,70
0,15
0,15
0,03
0,35
0,02
0,15
G2Mo
0,08 to 0,30 to 0,90 to
0,12
0,70
1,30
0,020
0,020
0,15
0,15
0,40 to
0,60
0,03
0,35
0,02
0,15
G4Mo
0,06 to 0,50 to 1,70 to
0,14
0,80
2,10
0,15
0,40 to
0,60
0,03
0,35
0,02
0,15
0,025
0,025
0,15
a
If not specified: Cr < 0,15%; Cu 0,35 %; V 0,03 %. Copper from steel and copper from coating shall not exceed 0,35 % (mass).
b
Single values shown in the table are maximum values.
c
The results shall be rounded to the same number of significant figures as in the specified value using the rule A in accordance with
Annex B of ISO 31-0:1992.