E7018 Arc-Welding Rods | McMaster-Carr

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3,234 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.

Stainless Steel Pipe and Pipe Fittings

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

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

Standard-Wall Stainless Steel Threaded
Pipe Nipple and Pipe Assortments

Keep a variety of lengths of pipe and pipe nipples on hand for areas where corrosion is a concern.

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

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

Standard-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

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

Thin-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Typically used with thin-wall stainless steel unthreaded pipe fittings.

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 Steel Threaded
Pipe Nipples and Pipe with Sealant

For extra leak protection in low-pressure lines, the threads of this Schedule 40 pipe have sealant already applied.

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

Standard-Wall Steel Pipe Nipples and Pipe
with Right-Hand and Left-Hand Threads

Pipe has clockwise (right-hand) threads on one end and counterclockwise (left-hand) threads on the other end. When you use a wrench to turn, connections on both ends tighten at the same time.

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.

Standard-Wall Galvanized Steel Pipe Nipples
and Pipe for Joining Dissimilar Metals

A plastic sleeve prevents destructive corrosion when connecting different metals.

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

The acrylic sealant on this pipe offers extra protection against leaks. Also known as schedule 40 pipe, this pipe is designed for use in low-pressure environments.

Standard-Wall Galvanized Steel Threaded
Pipe Nipple and Pipe Assortments

Assortments contain threaded pipe in various lengths.

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.

Thick-Wall Steel Threaded Pipe Nipples and Pipe

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

Standard-Wall Steel Unthreaded Pipe Nipples and Pipe

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe

Typically used with standard-wall and low-pressure iron and steel unthreaded pipe fittings. Also known as Schedule 40.

Standard-Wall Grooved-End Steel Pipe Nipples and Pipe

Standard-Wall Grooved-End
Steel Pipe Nipples and Pipe

This steel pipe has grooved ends that connect to fittings with a clamp (sold separately) for an easy way to install piping systems.

Stainless Steel Pipe and Pipe Fittings

Standard-Wall Stainless SteelThreaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Stainless Steel ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Stainless SteelUnthreaded Pipe Nipples and Pipe

Thin-Wall Stainless SteelUnthreaded Pipe Nipples and Pipe

Iron and Steel Threaded Pipe and Pipe Fittings

Standard-Wall Steel ThreadedPipe Nipples and Pipe

Standard-Wall Steel ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Steel ThreadedPipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipples and Pipewith Right-Hand and Left-Hand Threads

Standard-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Standard-Wall Galvanized Steel Pipe Nipplesand Pipe for Joining Dissimilar Metals

Standard-Wall Galvanized Steel ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Galvanized Steel ThreadedPipe Nipple and Pipe Assortments

Thick-Wall Galvanized Iron and SteelThreaded Pipe Nipples and Pipe

Thick-Wall Steel Threaded Pipe Nipples and Pipe

Standard-Wall Steel Unthreaded Pipe Nipples and Pipe

Standard-Wall Steel UnthreadedPipe Nipples and Pipe

Standard-Wall Grooved-End Steel Pipe Nipples and Pipe

Standard-Wall Grooved-EndSteel Pipe Nipples and Pipe

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel Threaded
Pipe Nipple and Pipe Assortments

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

Standard-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Thin-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Standard-Wall Steel Threaded
Pipe Nipples and Pipe

Standard-Wall Steel Threaded
Pipe Nipples and Pipe with Sealant

Standard-Wall Steel Threaded
Pipe Nipple and Pipe Assortments

Standard-Wall Steel Pipe Nipples and Pipe
with Right-Hand and Left-Hand Threads

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Galvanized Steel Pipe Nipples
and Pipe for Joining Dissimilar Metals

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

Standard-Wall Galvanized Steel Threaded
Pipe Nipple and Pipe Assortments

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

Standard-Wall Steel Unthreaded
Pipe Nipples and Pipe

Standard-Wall Grooved-End
Steel Pipe Nipples and Pipe