Identification markings

An actual marking on product shall reflect that product has manufactured accordance to the specification and its original. It is necessary to cross check with the material test report.

Each fitting shall be permanently marked with the required identification by raised lettering and/or stamping. Cylindrical fittings shall be marked on the O.D. or end of the fitting in a location such that the marking will not be obliterated as a result of welding installation (ASME B16.11).

ASME B16.11 covers normal size from 1/8″ to 4″. Fittings shall be made of materials consisting of forgings, bar, seamless pipe, or seamless tubular products.

Identification markings

Required Description Verified (refer photo)
Name: manufacturer’s name or trade-marks I.M.L
Material identification material designation ASTM A105N or ASTM A182
Class Designation rating 3000 or 6000
Product Conformance forming specification B16.11 or B16
Size SI or US Customary Units NPS 1″ or DN25
Heat number identification number T3Z

 

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