1. weld, seamless, forged elbow 2. pipe fitting 3. carbon, stainless steel, alloy ... SCH30, SCH40, SCH60, SCH80, SCH160, ETC Bending RadiusR=1.5D-10D Bending Angle45°, 90° , 180° Standard ASMEANSI B16. ... St45.8 Stainless steel: 1.4301, 1.4306, 1.4401, 1.4571 Alloy steel: 1.7335, 1.7380, 1.0488 (1.0566) JISCarbon steel: ... from D630mm to D3320mm 5, Socket welding pipe fittings from D3mm to D159mm 6, High ...