ASTM A350 LF2 flange

ASTM A350 / ASME SA350 Standard Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping Components Material Grade LF1 LF2 LF3 LF5 LF6 LF9 LF787 Product Form Flanges(ASME B16.47,B16.48,B16.5,MSS SP44,BS10,BS3293, BS4504,ISO7005-1) WN(welding-neck);SO(slip-on);PL(Plate);BL(Blind);Th(Threaded);SW(scket-welding); LF/SE(lapped flange/stub end);LWN(long welding neck);Orifice flange;Reducing flange;API flange;Integral/Compact flange