ASTM A 420 Carbon Steel & Alloy Steel Pipe Fittings 1.
*There are 4 steel grades covered within ASTM A 420: WPL6, WPL9, WPL3 and WPL8. *All the values are maximum unless otherwise specified. 3. Mechanical properties of ASTM A 420 fittings ASTM A 420 MECHANICAL PROPERTIES GRADE Tensile Strength MPa Yield Strength MPa Elongation % WPL6 415-655 240 22 WPL9 435-610 315 20 WPL3 450 …