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ASTM A20 / A20M Standard Specification for General

ASTM A20 / A20M Standard Specification for General Requirements for Steel Plates for Pressure Vessels:This specification covers a group of common requirements that apply to rolled steel plates for pressure vessels. The steel shall be made in an open-hearth, basic-oxygen, or ASTM-A841, 2003 - MADCADA841/A841M-03a Standard Specification for Steel Plates for Pressure Vessels, Produced by Thermo-Mechanical Control Process (TMCP)