ASTM A 537/A 537M - 95 (Reapproved 2000) Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese - Silicon Steel

American Society for Testing and Materials (ASTM). Current edition approved June 15, 1995. Published August 1995. Reapproved 2000. 4 р. This specification covers heat-treated carbonmanganese-silicon steel plates intended for fusion welded pressure vessels and structures.
The maximum thickness of plates furnished under this specification is 4 in. [100 mm] for Class 1 and 6 in. [150 mm] for Class 2 and Class 3