Steel Flange 1.Standard:DIN ANSI ASME JIS,etc 2.Size:1/2"(DN15) to 48"(DN1200) 3.Pressure:class150,300,600,900,1500,2500,etc Plate Flange/Weld Neck FlangeDescription MaterialCarbon Steel:A105(N) C22.8 ST-37.2 S400 S440 SQ235(CS20#) A106B A53 Q345 Stainless Steel:304 316 304L 316L A350LF2 A182 Alloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91 Size1/2"(DN15) to 48"(DN1200)PressureClass150, 300 ...