Its strength and low cost make it an ideal material for structural steel beams. ASTM A 588 GR. B H Beam steel equivalent standard with GB/T 4171 is ISO 4952, ISO 5952, ASTM A242/242M, ASTM A588/A588M, ASTM A606, ASTM A871/A871M, JIS G3114, JIS G3125, GB/T 18982. Katalor is the professional Chinese ASTM A 588 GR. ASTM A322 Specification 4140 Alloy Steel Aero Vac Alloys The steel shall be made by one or more of the following primary processes open-hearth, basic-oxygen, or electric-furnace.ASTM A322 - 13(2018)e1 Standard Specification for Steel Bars, Alloy ASTM A322 Specification 4140 Alloy Steel Aero Vac Alloys . What is the specification for bar steel?What is the specification for bar steel?Sections and sizes
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