LOOSE FLANGE 1.Size:15-1200(1/2"-48) 2.Marerial:Q235,A105,ST37.2,20#,16Mn 3.Type:Flat, Slip-on,Bind ... carbon steel flange2.Size: from 1/2" to 80"( dn15 to dn2000)3.Materials: carbon steel or stainless ... steel4.ASTM A105, SS400,ST37.2, ST35.3, ASTM A182 F304/304L/316/316L/321 ... 6.Varieties: threaded flange, slip-on flange (SO), socket welding flange, lap joint flange (LJF), welding neck ...