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Product: |
Stainless Steel Welded Pipe, Welded Stainless Steel Pipe, Seamless and Welded Pipes |
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Size: |
Outside Diameter: 1/4''-36'' |
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Wall Thickness: SCH 5, SCH 10S, SCH 40S, SCH 80S |
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Pipe Standard: |
ASTM A312/A1016/A269/A268/A789/A632/A250/A270/A358/A688/A814/A409 |
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EN10216/EN10297/JIS G3448/G3459/G3463 |
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Grades: |
200 series:201,202.204Cu. |
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300series:301,302,304,304Cu,303,303Se,304L,305,307,308,308L,309,309S,310,310S,316,316L,321. |
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400 series:410,420,430,420J2,439,409,430S,444,431,441,446,440A,440B,440C. |
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Duplex and Others:2205,904L,S31803,330,660,630,17-4PH,631,17-7PH,2507,F51,S31254 etc. |
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Application: |
In Chemical Industry, Coal, Oil Field Open Machine, Building Materials Heat-resistant Parts |
Welded pipe is produced by rolling stainless steel strip into a tube and then welding it along its entire length. After welding, the weld, or bead, can be finished by cold rolling and forging or left as it is.
Cold forming produces smoother surfaces and tighter tolerances. Welded tubing can even be drawn like seamless tubing to provide a better weld and surface finish. Welded tubing can also be produced with thinner walls on larger diameters than seamless tubing. Because welded tubing requires less machining, it is typically faster to produce and less expensive than seamless tubing.
The disadvantage of welded tubing is in high pressure and heavy wall applications. The long weld creates a stress concentration point that reduces pressure ratings to 80% of comparable seamless tubing. In addition, the stainless material used to make welded tubing must be thin enough to roll effectively. Therefore, heavy wall tubing is less feasible than welded tubing.
Available Specification
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Product Name |
Executive Standard |
Dimension |
Steel Code / Steel Grade |
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Industrial Pipes |
ASTM A312, A358, A778, JIS G3459 |
OD: 1/4"~40" |
TP304, TP304L, TP316L, SUS304TP |
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Tubes for Boiler and Heat-Exchanger, General Service Tubing |
ASTM A249, A269, JIS G3463 |
OD: 15.9~139.8mm |
TP304, TP304L, TP316L, SUS304TB |
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Mechanical and Structural Tubes |
ASTM A554, JIS G3446 |
OD: 7.9~152.4mm |
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill's STD SUS304 |
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Square Tubes |
ASTM A554 |
OD: 12.7x12.7~150x150mm |
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill's STD |
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Rectangular Tubes |
ASTM A554 |
OD: 10x20~100x200mm |
MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill's STD |
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Sanitary Tubing |
ASTM A270 |
OD: 25.4~165.2mm |
TP304, TP304L, TP316L, SUS304TBS |
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Large Gauge Pipes for Ordinary Piping |
JIS G3448 |
OD: 15.88~318.5mm |
SUS304TPD |
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Large Diameter Pipes |
JIS G3468 |
OD: 14"~40" |
SUS304TPY |
Production Line:
Bestarpipe offers a comprehensive range of Stainless Steel Welded Pipes.
Get a free quote and special discount now: sales@bestarpipe.com
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nal Diameter NPS |
Outside Diameter (mm) |
Nominal Wall Thickness (mm) |
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ASME B36.19M |
ASME B36.10M |
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SCH 5S |
SCH 10S |
SCH 40S |
SCH 80S |
SCH 5 |
SCH 10 |
SCH 20 |
STD |
XS |
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1/4 |
13.72 |
— |
1.65 |
2.24 |
3.02 |
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1.65 |
— |
2.24 |
3.02 |
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3/8 |
17.15 |
— |
1.65 |
2.31 |
3.2 |
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1.65 |
— |
2.31 |
3.2 |
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1/2 |
21.34 |
1.65 |
2.11 |
2.77 |
3.73 |
1.65 |
2.11 |
— |
2.77 |
3.73 |
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3/4 |
26.67 |
1.65 |
2.11 |
2.87 |
3.91 |
1.65 |
2.11 |
— |
2.87 |
3.91 |
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1 |
33.4 |
1.65 |
2.77 |
3.38 |
4.55 |
1.65 |
2.77 |
— |
3.38 |
4.55 |
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1 1/4 |
42.16 |
1.65 |
2.77 |
3.56 |
4.85 |
1.65 |
2.77 |
— |
3.56 |
4.85 |
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1 1/2 |
48.26 |
1.65 |
2.77 |
3.68 |
5.08 |
1.65 |
2.77 |
— |
3.68 |
5.08 |
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2 |
60.33 |
1.65 |
2.77 |
3.91 |
5.54 |
1.65 |
2.77 |
— |
3.91 |
5.54 |
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2 1/2 |
73.03 |
2.11 |
3.05 |
5.16 |
7.01 |
2.11 |
3.05 |
— |
5.16 |
7.01 |
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3 |
88.9 |
2.11 |
3.05 |
5.49 |
7.62 |
2.11 |
3.05 |
— |
5.49 |
7.62 |
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3 1/2 |
101.6 |
2.11 |
3.05 |
5.74 |
8.08 |
2.11 |
3.05 |
— |
5.74 |
8.08 |
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4 |
114.3 |
2.11 |
3.05 |
6.02 |
8.56 |
2.11 |
3.05 |
— |
6.02 |
8.56 |
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5 |
141.3 |
2.77 |
3.4 |
6.55 |
9.53 |
2.77 |
3.4 |
— |
6.55 |
9.53 |
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6 |
168.28 |
2.77 |
3.4 |
7.11 |
10.97 |
2.77 |
3.4 |
— |
7.11 |
10.97 |
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8 |
219.08 |
2.77 |
3.76 |
8.18 |
12.7 |
2.77 |
3.76 |
6.35 |
8.18 |
12.7 |
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10 |
273.05 |
3.4 |
4.19 |
9.27 |
12.7 |
3.4 |
4.19 |
6.35 |
9.27 |
12.7 |
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12 |
323.85 |
3.96 |
4.57 |
9.53 |
12.7 |
3.96 |
4.57 |
6.35 |
9.53 |
12.7 |
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14 |
355.6 |
3.96 |
4.78 |
9.53 |
12.7 |
3.96 |
6.35 |
7.92 |
9.53 |
12.7 |
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16 |
406.4 |
4.19 |
4.78 |
9.53 |
12.7 |
4.19 |
6.35 |
7.92 |
9.53 |
12.7 |
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18 |
457.2 |
4.19 |
4.78 |
9.53 |
12.7 |
4.19 |
6.35 |
7.92 |
9.53 |
12.7 |
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20 |
508 |
4.78 |
5.54 |
9.53 |
12.7 |
4.78 |
6.35 |
9.53 |
9.53 |
12.7 |
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22 |
558.8 |
4.78 |
5.54 |
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4.78 |
6.35 |
9.53 |
9.53 |
12.7 |
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24 |
609.6 |
5.54 |
6.35 |
9.53 |
12.7 |
5.54 |
6.35 |
9.53 |
9.53 |
12.7 |
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26 |
660.4 |
— |
— |
— |
— |
— |
7.92 |
12.7 |
9.53 |
12.7 |
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28 |
711.2 |
— |
— |
— |
— |
— |
7.92 |
12.7 |
9.53 |
12.7 |
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30 |
762 |
6.35 |
7.92 |
— |
6.35 |
— |
7.92 |
12.7 |
9.53 |
12.7 |
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32 |
812.8 |
Thinkness: 8.63-30mm |
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ASTM A312 |
Standard Specification for Seamless and Welded Austenitic Stainless Steel Pipes |
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ASTM A1016/A1016M |
Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes |
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A268 |
Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service |
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A269 |
Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service |
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A250 |
Standard Specification for Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes |
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A270 |
Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing |
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A358 |
Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service |
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A409 |
Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service |
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A632 |
Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service |
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A688 |
Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes |
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A789 |
Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service |
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A814 |
Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe |
