... CL1/CL2, LF3 CL1/CL2, ASTM A234 WPB, WPC (3)SS: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18 ... to special requirement. pipe & fittings:steel pipes, elbow, tee, cross, reducer, flange, cap, lap joint stub end, steel pipes, socket fittings ...