Material alternatives
Tubing & Tube Fittings
Knut Marker
SVAFAS - Swagelok
Tubing and Tube Fittings
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Includes all Instrument lines
More than 40 000m tubing
Eldfisk 2/7 S Topside Module
More than 23 000 Tube Fittings
Low CAPEX value
High OPEX value
«New» materials
Eldfisk 2/7 Sierra Topside Module at Kværner Stord, May 2014
Tubing and Tube Fittings History
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Worlds first Twin-Ferrule Tube Fittings founded in
1947 by Crawford Fitting Company
Patended for 25 years.
NOT made to international standard.
Each manufactor have their own design
More than 40 different «twin-ferrule»
Twin-Ferrule Tube Fitting Design
Front Ferrule
Nut
Back
Ferrule
Body
Tube Wall
Tube Fitting Materials
Material Grade
Prefix
Barstock
ASTM
Forging
ASTM
316
SS
A276, A479
A182
20
C20
B473
B462
400
M
B164
B564
600
INC
B166
B564
625
625
B446
B564
825
825
B425
C-276
HC
2507
Material
Grade
Prefix
Barstock
ASTM
Forging
ASTM
304L
304L
A479
A182
321
321
A479
A182
347
347
A479
A182
316L
316L
A479
A182
B564
6MO/254
254
A479
A182
B574
B564
B-2
HB
B335
B335
2507
A479
A182
Nickel
NI
B160
B564
Carbon steel
S
A108
n/a
Tantalum
TA
B365
n/a
Brass
B
B16, B453
B283
ZR
B550
B493
Aluminum
A
B211
B247
Zircalloy
702
Titanium Gr.4
TI
B348
B381
ZR2
B351
n/a
Nylon
NY
D4066
n/a
Zircalloy
802
PFA
PFA
n/a
D3307, I
PTFE
T
D1710
D3294
Long term use of 316SS tubing
ExxonMobil Jotun A
Pitting and Crevice
corrosion occurs under the
Tube Supports in seawater
environment.
Shell Prelude Project FLNG
Tubing Materials Nominal Chemical Composition
Material Grade Cromium
(Cr) %
Nikkel
(Ni) %
Molybden
(Mo) %
Copper
(Cu) %
Nitrogen
(N) %
PREN
Value
316/316L*
16 – 18
10 – 14
2,6
254 SMO®
20
18
6,1
0,7
0,2
43
AL-X6N®
24
20
6,3
0,1
0,2
45
SAF2507™
25
7
4
-
0,3
42,5
C-276
16
57
16
-
-
68
Titanium Gr.2
23 – 28
99 % pure Titanium
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PREN = 1 x %Cr + 3.3 x %Mo + 16 x %N
* 316/316L Cr/Ni/Mo content may differentiate by Tube Fitting Manufacture
*316 Stainless Steel Cr and Ni content
316 / 316L ASTM Ranges 16 to 18% Cr
316 / 316L ASTM Ranges 10 to 14% Ni
To be specified by each Tube Fitting Manufacture
Tubing data for Swagelok Tube Fittings 316SS
• High-quality, fully annealed (Type 304, 304/304L, 316, 316/316L, 317, 317/317L)
• Tubing to be in accordance to ASTM A269 or EN ISO 1127
• All pressures calculated from ASME B31.3, Process Piping
• Allows for pressure testing to 1,5 times working pressure
• OD Tolerance ± 0,13 mm (0,005”) / Wall Thickness ± 10 %
• Rating based on repeated pressure testing of the Swagelok tube fitting with
a 4:1 design factor based upon hydraulic fluid leakage
Tubing data for Swagelok Tube Fittings 316SS
Tubing data for Swagelok Tube Fittings 254/6MO
Suggested Ordering Information:
• High-quality, fully annealed seamless or welded and drawn alloy
254 hydraulic tubing, ASTM A269 or ASTM A213, or equivalent.
• Hardness not to exceed 96 HRB. Tubing to be free of
scratches, suitable for bending and flaring.
316SS Tube Fittings combined with 6MO/254 Tubing
Suggested Tubing Ordering Information:
• Fully annealed, high-quality (seamless or welded and drawn) alloy 254
hydraulic tubing, ASTM A269 or A213, or equivalent.
• Hardness 96 HRB or less.
• Tubing to be free of scratches, suitable for bending and flaring
Swagelok Tube Fittings in SAF 2507
Suggested Ordering Information
• High-quality, fully annealed SAF 2507 super duplex tubing, ASTM
A789 or equivalent. Hardness not to exceed 32 HRC.
• Tubing to be free of scratches, suitable for bending and flaring.
Mechanical Properties of Alloys
NORSOK I-001, Edition 4, Jan 2010
4.8.3 Off-line instruments
Instrument process wetted parts, tubing, tube
fittings and bulk material are given in Table 1.
Table 1, NOTE:
As a general rule the same material on tubing and fittings.
For 6MO tubing SS Type 316 fittings may be used. In the
event that the materials are different, it must be ensured that
the compression tube fitting material is hardest and in
accordance with supplier recommendations.
Flow Conditions, Circulation or Stagnant
Temperature limitations may be adjusted due to Flow Conditions.
Offline components may have a higher temperature rating in Stagnant
applications compared with Circulation applications.
NORSOK M-630, Edition 5, September 2010
This NORSOK standard includes material
requirement in a collection of MDSs for
use in piping/tubing systems
Grade
MDS
316/316L
S01
6MO/254
R18
SAF 2507
D58
Hastelloy C-276
N/A
Titan Gr2
T01
NORSOK M-650, Edition 4, September 2011
This NORSOK standard establishes a set of
qualification requirements to verify that the
manufacturer has sufficient competence and
experience of the relevant material grades, and
necessary facilities and equipment to manufacture
these in the required shapes and sizes with
acceptable properties.
Grade
MDS
M-630
QTR
M-650
316/316L
S01
NO
6MO/254
R18
YES
SAF 2507
D58
YES
Hastelloy C-276
N/A
N/A*
Titan Gr2
T01
N/A*
Time for Questions
The Swagelok
Tube Fitting Advantage
Thank you !