ANSI elbow :carbon steel.alloy steel.45D 90D 180D. Features: 1) Forged Butt welded male and female flanges, WN, SO, SW, Threaded flange, reducing flange, blind flange, and so on. 2) Pressure: 0.25~10MPa 3) Temperature: 0~550°C 4) Material: Q235, 20#, 16Mn, st45.8, 12CrlMoV, 10CrMo910, 1Cr18Ni9Ti, 1Cr13, A105, 304/304L, 316/316L 5) With ISO9001 certificate and API certificate 6) Can be produced according to customers' requirements or other tubing standards