... Range: WN flange, SO flange, SW flange, PL flange, BL flange, LJ flange, TH flange, Usage: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc MATERIAL Stainless Steel Flanges ASTM ... / ASME A/SA 182 Grade: F 304, 304L, 316, 316L. Carbon Steel Flanges ASTMA 105/A694 F42/46/52/56/60/65 ...