Black Iron Fittings

PVC Fittings Online has the largest selection of pipe and fittings online, with endless choices of size and material. We now supply black iron fittings for use with black malleable iron piping. These fittings are specially designed for use with oil and gas applications. Black iron (also referred to as schedule 40 steel or schedule 40 black pipe) is a durable material that withstands high temperatures and pressures, with a maximum pressure of 700psi. We supply nipples, floor flanges, caps and more in a huge range of sizes, giving you plenty of choices when it comes to black iron fittings! View our full selection below.

Black Iron - Schedule 40 Steel

Despite the fact that "black iron" has the word "iron" in its name,  it is actually composed of low-grade mild steel. Mild steel is a comparably soft material that can easily be welded and cut with a torch. Industry professionals typically refer to this material as "schedule 40 steel" instead of the layman's "black iron." This is an extremely useful material due to its malleable properties. It is much easier to work with than stainless or carbon steel due to these factors. Black iron has a melting point of 2,570 degrees Fahrenheit and an operating temperature of well over 1000 degrees Fahrenheit, making it an ideal choice for high temperature applications.

Due to their toughness and durability, black iron pipe and fittings are typically used for oil and gas applications. They may be heavy duty, but they can be installed by just about anyone. Keep in mind, you may need some specialized tools to carry out the entire process, but an installation just requires parts and some type of thread tape / pipe joint compound. To connect black iron fittings and pipe, wrap the male threads in a pipe thread sealant tape, keeping direction in mind. If you don't like working with tape, you can use pipe joint compound, which is applied with a brush or rag to male and female threads before connecting.

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