Carbon Steel butt weld pipe fittings that we manufacturer are available in ASTM A105/ A694 F42/ 46/ 52/ 56/ 60/ 65/ 70/ A350 LF3/ A350 LF2, etc. Technical specification : It is available in types like - weldneck, blind, lap joint, ring joint, long weldneck, deck flange, etc. It is available in following Class - 150#, 300#, 400#, 600#, 900#, 1500# &