... elbow 1/2'' to 106'' LR SR carbon steel elbow high quality carbon steel elbow API CE Carbon Steel Elbow 1. Material: stainless steel ... )ScheduleSCH STD, XS, XXS, SCH 10 ~ SCH 160Material Code:1 CARBON STEELASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, WPL6, WPHY ... fittings and Specialized NACE & HIC Fittings. Production Facility Certificate: Package: carbon steel elbow