... Steel, Duplexsuper duplex stainless steelASTM: Carbon Steel: ASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, WPL6, WPHY- ... WP316/316L, WP321, WP347, WPS 31254Alloy Steel: ASTM A234 WP1, WP11, WP12, WP22, WP5, WP9, WP91DIN: ... , SCH 10 ~ SCH 160Material Code:1 CARBON STEELASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, WPL6, WPHY- ... -65, WPHY-70, WPHY-80 2 ALLOY STEELASTM A234 WP1, WP11, WP12, WP22, WP5, WP9, WP913 ...