butt welded ASTM A234 WPB elbow

butt welded ASTM A234 WPB elbow specifications 1.Standard: ASME/ANSI B16.9, B16.11, B16.28, B16.5; MSS SP-43, 83, SY/T051-1998, SY5257-91 2.Size: 1/2" ~ 48"( Seamless); 16" ~ 72"(Welded) 3.Wall Thickness: SCH 5 ~ SCH XXS 4.Radius: LR(R=1.5D); SR(R=1.0D), Special design available. 5.Angle: 30° 45° , 60° , 90° , 180° , Special design available. 6.Surface treatment: Transparent oil, rust-proof black oil or hot galvanized. We welcome potential buyers to contact Sophia via email