Carbon Steel forged flanges 1.Size:1/2" up to 48" 2.Material:carbon steel,alloy steel,stainless steel 3.Standard:ASME ... , DIN, BS2. Material: Carbon Steel(ASTM A105, A181, ST 37.2, C22.8, Q235)Stainless SteelASTM F304/304L, 316/316L, 321 ... ) Alloy Steel(ASTM F11/22)3. Size: 1/2"~ 200"4. Face Type: Flat Face, Raised Face, Ring Joint ...