ASTM A358 CL1-5 stainless steel welded pipe 100%RT

 

1.3.1 Class 1—Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.
1.3.2 Class 2—Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.
1.3.3 Class 3—Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.
1.3.4 Class 4—Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).
1.3.5 Class 5—Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.


8. Permissible Variations in Dimensions
8.1 Permissible Variations—The dimensions at any point in a length of pipe shall not exceed the following:
8.1.1 Outside Diameter—Based on circumferential measurement,60.5 % of the specified outside diameter.
8.1.2 Out-of-Roundness—Difference between major and minor outside diameters, 1 %.
8.1.3 Alignment—Using a 10-ft or 3-m straightedge placed so that both ends are in contact with the pipe, 1⁄8in. [3 mm].
8.1.4 Thickness—The minimum wall thickness at any point in the pipe shall not be more than 0.01 in. [0.3 mm] under the nominal thickness.

x-ray film on the seam

 

 

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