A358/A358M Austenitic Chromium-Nickel Stainless Steel Pipe for High Temperature
Grade:
316L, 317, 317L, 321, 321H, 348 S32050, N08800.
Welding:
The joints are full penetration bouble-welded or single-welded
Heat treatment:
All pipes are with heat treatment condition.
Permissible Variations—The dimensions at any point in a length of pipe shall not exceed the following:
Outside Diameter—Based on circumferential measurement, 60.5 % of the specified outside diameter.
Out-of-Roundness—Difference between major and minor outside diameters, 1 %.
Alignment—Using a 10-ft [3-m] straightedge placed so that both ends are in contact with the pipe, 1⁄8 in. [3 mm] deviation from contact with the pipe.
Surface finish
AP(Anneal treatment & Passivation/Acidpickling);
BA(Bright Annealed);
MP(Mechanical Polish);
Finer polish finish(240,280 and 320 grit);
Buffed(320 grit)
Specification
Shape Of Tube | O.D | W.T | Length |
Precision tube | 0.25mm-10mm | 0.1-1.5mm | 6m or made to order |
Round tube | 5mm-219mm | 0.20-4.5mm | 6m or made to order |
Square tube | 7*7 - 300*300mm | 0.2-0.6mm | 6m or made to order |
Rectangle tube | 10*20--100*200mm | 0.2-0.6mm | 6m or made to order |
Special-shaped tube | customized production | 0.2-0.6mm | 6m or made to order |
Tolerance: | D1 ±1.5%. min±0.75 mm for common application | ||
Technical-economical range of dimensions for pipes made of stainless steel
Inspection and Quality Control:
In house control, also accept Customer Inspection at site or Third Party Inspection
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