A479/A479M - 20 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers andOther Pressure Vessels

Designation: A479/A479M - 20 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers andOther Pressure Vessels1 1. Scope* 1.1This specification2 covers hot- and cold-finished bars ofstainless stcel. including rounds.squares.and hexagons.andhot-rolled or extruded shapes such as angles, tees, and channelsfor use in boiler and pressure vessel construction. NonE l—There are standards covering high nickeL.chromium，aauste-nitic corrosion.and hcat-resisting alloy maierials.These standards areunder the jurisdictionm of ASTM Sabcoamamiltee B02.07 and may be foundln Aarual Book ef ASTM Standdards.Nol 02.04. 1.2 The values stated in either Sl units or inch-pound unitsare to be regarded separatcly as standard. Thc values stated ineach system may not be exact equivalents; therefore.eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard. 1.3 Unless the order specifies the applicable “M" specifica-tion designation, the material shall be furnished to the inch-pound units. 1.4 This internarional xrandared was developed inr accor-dance wirha isternationally recognized principles owe standdard-ization esablished in the Decision on Principles for theDevelopmenas of Istervatioral Standards，Geides and Recorma-hendarionis issaed by he Worid Trade Organization TecianicaiBarriers to Trade (iBT)Coranaistee. 2. Referenced Documents 2.1 ASTM Srandarcls:3 A262 Practices for Detecting Susceptibility to lntergranularAltack in Austenitic Stainless Steels A479/A479M - 20 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers andOther Pressure Vessel