Iron and Steel Seamless Pipe

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2,020 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Iron and Steel Threaded Pipe and Pipe Fittings

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Also known as Schedule 40, this steel pipe is designed for low-pressure applications.

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Made of galvanized steel, this Schedule 40 pipe has fair corrosion resistance and is designed for low-pressure applications.

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Typically used with medium-pressure iron and steel threaded pipe fittings. Also known as Schedule 80.

Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe

Typically used with medium-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 80.

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Typically used with high-pressure iron and steel threaded pipe fittings. Also known as Schedule 160.

Extra-Thick-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Typically used with high-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 160.

Super-Thick-Wall Steel
Threaded Pipe Nipples and Pipe

Typically used with extreme-pressure iron and steel threaded pipe fittings. Also known as Schedule XXH.

Extreme-Pressure Steel Threaded Pipe Fittings

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

Iron and Steel Unthreaded Pipe and Pipe Fittings

Standard-Wall Butt-Weld Steel
Unthreaded Pipe Fittings

Butt-weld fittings allow for a smooth, flush connection that provides maximum flow.

Low-Pressure Steel Unthreaded Pipe Flanges

Bolt two flanges of the same size together with a gasket to create an access point in a pipe line.

Low-Pressure Steel Unthreaded
Pipe Flanges for Low Temperatures

Even in temperatures as low as -46°, these A350 LF2 steel flanges won’t become brittle, so they absorb impact better than other low-pressure steel flanges.

Thick-Wall Steel Unthreaded Pipe Nipples and Pipe

Typically used with thick-wall and high-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 80.

High-Pressure Socket-Connect
Steel Unthreaded Pipe Fittings

Socket-connect fittings are easier to weld than butt-weld fittings because the fitting doesn't need to align perfectly to the pipe. Slide the pipe into the socket and weld.

Thick-Wall Butt-Weld Steel Unthreaded Pipe Fittings

With thicker, stronger walls than our standard-wall butt-weld pipe fittings, these fittings stand up to your high strength applications.

High-Pressure Steel Unthreaded Pipe Flanges

Forged for extra strength, these heavy duty unthreaded flanges can withstand high-pressure applications.

Super-Thick-Wall Steel Unthreaded Pipe

Typically used with extreme-pressure iron and steel unthreaded pipe fittings. Pipe is also known as Schedule XXH .

Extreme-Pressure Steel Unthreaded Pipe Flanges

For excellent strength in extreme-pressure applications, choose these heavy duty Pressure Class 1500 flanges.

Drain, Waste, and Vent Iron Pipe

Use this pipe in gravity-flow applications both above and below ground.

Stainless Steel Unthreaded Pipe and Pipe Fittings

Extra-Thick-Wall Stainless Steel Unthreaded Pipe

Typically used with extreme-pressure stainless steel unthreaded pipe fittings.

Thick-Wall Stainless Steel Unthreaded Pipe

Typically used with thick-wall and high-pressure stainless steel unthreaded pipe fittings.

Thick-Wall Butt-Weld Stainless
Steel Unthreaded Pipe Fittings

Butt-weld fittings allow for a smooth, flush connection that provides maximum flow.

High-Pressure Stainless Steel
Unthreaded Pipe Flanges

Use these heavy duty forged flanges for high-pressure applications.

Standard-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Typically used with standard-wall and low-pressure stainless steel unthreaded pipe fittings.

Low-Pressure Stainless Steel
Unthreaded Pipe Flanges

Bolt two same-size flanges together with a gasket to create an access point within a pipe line.

Low-Pressure Press-Connect Stainless
Steel Unthreaded Pipe Fittings

Press these fittings onto stainless steel pipe using a crimping tool for a permanent, leak-tight connection that's faster than threading or welding and doesn't require heat.

Stainless Steel Threaded Pipe and Pipe Fittings

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Typically used with low-pressure stainless steel threaded pipe fittings.

Low-Pressure Stainless Steel Threaded Pipe Fittings

Use these corrosion-resistant fittings in a low-pressure pipe line.

Premium Low-Pressure Stainless Steel
Threaded Pipe Fittings with Certification

Unlike other stainless steel fittings, these are made in the U.S.A. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition.

Standard-Wall Stainless Steel Threaded
Pipe Nipples and Pipe with Sealant

Typically used with low-pressure stainless steel threaded pipe fittings.

Thick-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Typically used with medium- to high-pressure stainless steel threaded pipe fittings.

High-Pressure Stainless
Steel Threaded Pipe Fittings

Use these heavy duty, corrosion-resistant fittings in high-pressure flow applications.

Medium-Pressure Stainless
Steel Threaded Pipe Fittings

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

Iron and Steel Threaded Pipe and Pipe Fittings

Standard-Wall Steel ThreadedPipe Nipples and Pipe

Standard-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Thick-Wall Galvanized Iron and SteelThreaded Pipe Nipples and Pipe

Extra-Thick-Wall Steel ThreadedPipe Nipples and Pipe

Extra-Thick-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Super-Thick-Wall SteelThreaded Pipe Nipples and Pipe

Extreme-Pressure Steel Threaded Pipe Fittings

Iron and Steel Unthreaded Pipe and Pipe Fittings

Standard-Wall Butt-Weld SteelUnthreaded Pipe Fittings

Low-Pressure Steel Unthreaded Pipe Flanges

Low-Pressure Steel UnthreadedPipe Flanges for Low Temperatures

Thick-Wall Steel Unthreaded Pipe Nipples and Pipe

High-Pressure Socket-ConnectSteel Unthreaded Pipe Fittings

Thick-Wall Butt-Weld Steel Unthreaded Pipe Fittings

High-Pressure Steel Unthreaded Pipe Flanges

Super-Thick-Wall Steel Unthreaded Pipe

Extreme-Pressure Steel Unthreaded Pipe Flanges

Drain, Waste, and Vent Iron Pipe

Drain, Waste, and Vent Iron Pipe

Stainless Steel Unthreaded Pipe and Pipe Fittings

Extra-Thick-Wall Stainless Steel Unthreaded Pipe

Thick-Wall Stainless Steel Unthreaded Pipe

Thick-Wall Butt-Weld StainlessSteel Unthreaded Pipe Fittings

High-Pressure Stainless SteelUnthreaded Pipe Flanges

Standard-Wall Stainless SteelUnthreaded Pipe Nipples and Pipe

Low-Pressure Stainless SteelUnthreaded Pipe Flanges

Low-Pressure Press-Connect StainlessSteel Unthreaded Pipe Fittings

Stainless Steel Threaded Pipe and Pipe Fittings

Standard-Wall Stainless SteelThreaded Pipe Nipples and Pipe

Low-Pressure Stainless Steel Threaded Pipe Fittings

Premium Low-Pressure Stainless SteelThreaded Pipe Fittings with Certification

Standard-Wall Stainless Steel ThreadedPipe Nipples and Pipe with Sealant

Thick-Wall Stainless SteelThreaded Pipe Nipples and Pipe

High-Pressure StainlessSteel Threaded Pipe Fittings

Medium-Pressure StainlessSteel Threaded Pipe Fittings

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Thick-Wall Galvanized Iron and Steel
Threaded Pipe Nipples and Pipe

Extra-Thick-Wall Steel Threaded
Pipe Nipples and Pipe

Extra-Thick-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Super-Thick-Wall Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Butt-Weld Steel
Unthreaded Pipe Fittings

Low-Pressure Steel Unthreaded
Pipe Flanges for Low Temperatures

High-Pressure Socket-Connect
Steel Unthreaded Pipe Fittings

Thick-Wall Butt-Weld Stainless
Steel Unthreaded Pipe Fittings

High-Pressure Stainless Steel
Unthreaded Pipe Flanges

Standard-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Low-Pressure Stainless Steel
Unthreaded Pipe Flanges

Low-Pressure Press-Connect Stainless
Steel Unthreaded Pipe Fittings

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Premium Low-Pressure Stainless Steel
Threaded Pipe Fittings with Certification

Standard-Wall Stainless Steel Threaded
Pipe Nipples and Pipe with Sealant

Thick-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

High-Pressure Stainless
Steel Threaded Pipe Fittings

Medium-Pressure Stainless
Steel Threaded Pipe Fittings