ASTM A 20/A 20M - 09 Standard Specification for General Requirements for Steel Plates for Pressure Vessels

American Society for Testing and Materials (ASTM). Current edition approved Oct. 1, 2009. Published November 2009. 35 р. This general requirements specification covers a group of common requirements that, unless otherwise specified in the applicable product specification, apply to rolled steel plates for pressure vessels.
These materials are intended to be suitable for fusion welding. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized.