Item: steel buttwelding fitting, bend,elbow,tee,reducer,caps,return bend,flanges. Size: Seamless: 1/2"???24" DN15???DN600 Welding : 6"???60" DN150???DN1500 Wall Thickness: sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s Max. Wall thickness: 200mm Materials: Carbon steel: ASTM/ASME A234 WPB-WPC Standards: SY/T5257-2004 DL/T515-2004 GD2000 GD87-1101 ASME B 16.9/ASME B16.28 ASME B16.49-2007 ASME B16.25-2007 Industries Served Our pipe steel fittings are widely used in many industries, such as power generation, petroleum, natural gas, chemicals, shipbuilding, construction, papermaking, metallurgy and so on.