... , Alloy Steel, Duplexsuper duplex stainless steelASTM: Carbon Steel: ASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, WPL6, WPHY-42, WPHY-46 ... to the customer requirement.2Supercritical thick wall pipe fittingMaterial : ASTM A335 GRADE P91, P92, WB36,B70 ID≤1016.we ... the customer requirement.3Ultra supercritical thick wall pipe fittingMaterial :ASTM A335 GRADE P92 ID≤1016.we can also produce according ...