ASME SB-381, identical with ASTM B381, is the standard specification for annealed titanium and titanium forgings. 39 grades of titanium and titanium alloys are covered by this standard. The titanium alloy forgings shall be made from bars or billets conforming to ASME SB-348. The completed forgings shall be free of injurious external and internal imperfections and may be furnished as descaled, sandblasted, or ground. The forgings may be furnished as flanges, fittings, valve parts, special branches, pressure vessel parts, shafts, etc.

The standard specification also covers referenced documents, chemical composition, terminology, ordering information, methods of chemical analysis, dimensions and permissible variations, test and inspection, product marking and packaging information of titanium and titanium alloy forgings. It also covers supplementary requirements covering grade 3 titanium forgings.

Click to download the ASME SB-381 (ASTM B381) in PDF for free. (Important Notes: the attached file is only provided for study & internal reference purpose with no commercial use; it is in conformance with ASME BPVC Section II Part B, 2013 Revision.)