What is a malleable iron fitting?
What is a malleable iron 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.
Can you bend malleable iron?
Malleable iron was the first iteration that could be hammered and bent into shape. This made it much easier to work with and less likely to fail.
What is the difference between malleable and cast iron fittings?
Malleable iron is relatively easy to machine, and it is shock resistant. Cast iron contains about two percent carbon, which makes it stronger and more resistant to rusting. But this also makes it more difficult to machine because it is difficult to get a smooth surface with the material.
What do you use malleable iron for?
It is often used for small castings requiring good tensile strength and the ability to flex without breaking (ductility). Uses include electrical fittings, hand tools, pipe fittings, washers, brackets, fence fittings, power line hardware, farm equipment, mining hardware, and machine parts.
Is malleable iron same as cast iron?
Malleable iron, just like cast iron is produced by a casting method but they are actually quite different from each other. Although, Malleable iron fittings start out as a cast iron fittings, they are then transformed into a much more durable malleable iron through a heating process.
Is malleable iron the same as galvanized?
Galvanized Malleable Fittings These galvanized fittings are made from malleable iron, a type of mild steel with excellent strength and corrosion resistance. It is zinc-coated, which prevents rusting.
What is the difference between malleable iron and steel?
Malleable Iron fittings weigh two to 3 times that of steel fittings & Dimensionally are one and one-half times larger in size. Due to natural porosity diecast fittings crack & distort under load. Corrosion resistance and performance are equally telling.
Can you weld malleable iron?
Malleable iron cannot be successfully fusion welded and retain its unique properties; to put it another way, you can weld malleable iron as easily as you can weld gray iron, but in the act of welding you will convert some of the malleable iron casting into a gray iron casting.
Can malleable iron be welded?
Is malleable iron rust resistant?
Gray cast iron and malleable iron are resistant to atmospheric corrosion. They show a higher resistance than low alloy high strength steels….9.14. 5 CORROSION OF CAST IRON IN SEAWATER.
Type | Corrosion rate (mm/year) | Pitting factor |
---|---|---|
Malleable cast iron | 0.045 | 4.9 |
Pearlitic gray cast iron | 0.003 | 9.3 |
Can I weld malleable iron?
How do you weld malleable cast iron?
Whiteheart malleable cast irons are best welded with a nickel-iron electrode (AWS A5. 15-90 : ENiFe-Cl) to obtain acceptable weld metal machinability, maximum strength or for thick sections. Care should be taken to limit weld penetration as far as possible, otherwise cracking may occur.