We get this question a lot from customers who are often trying to determine if they should use malleable iron fitting or forged iron threaded fitting or socket weld fitting. Malleable iron fittings are lighter fittings in 150# and 300# pressure class. They are made for light industrial and plumbing use up to 300 psi. Some malleable fittings such as floor flange, lateral, street tee and bullhead tees are not commonly available in forged iron.
Malleable iron offers more ductility that is often required in light industrial use. Malleable iron pipe fitting is not good for welding .
Malleable iron fittings, also called black iron fittings, are available up to 6 inch nominal pipe size, though they are more common to 4 inches. Malleable fittings include elbows, tees, couplings and floor flange etc. Floor flange is very popular to anchor items to the ground.
Post time: Sep-28-2020