Seamless Pipe | McMaster-Carr

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	Construction Construction

Seamless

	Fabrication Fabrication

Seamless

	Pipe Size Pipe Size

1/8
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
6
8

	Material Material

	Threading Threading

Unthreaded

Threaded on Both Ends

Threaded on One End

Fully Threaded

	Schedule Schedule


10	40

80	160

XXH

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	ID ID

	OD OD

	Wall Thickness Wall Thickness

	Type Type


Pipe	Adapter

Reducer

	Shape Shape


Straight	Round Tube

	For Use With For Use With

	Thread Type Thread Type

NPT

BSPT

	Connection Style Connection Style

	Specifications Met Specifications Met

	Connection Type Connection Type

	Pipe

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Gender Gender

Male

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Copper Tube Size Copper Tube Size

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3,534 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded 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.

Thick-Wall Steel Unthreaded Pipe

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

Extra-Thick-Wall Steel Unthreaded Pipe

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

Drain, Waste, and Vent Iron Pipe

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

Stainless Steel Pipe and Pipe Fittings

Standard-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Typically used with standard-wall and low-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.

Extra-Thick-Wall Stainless Steel Unthreaded Pipe

Typically used with extreme-pressure stainless steel unthreaded 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 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.

Aluminum Pipe and Pipe Fittings

Standard-Wall Aluminum
Unthreaded Pipe Nipples and Pipe

Typically used with standard-wall aluminum unthreaded pipe fittings.

Thick-Wall Aluminum Unthreaded Pipe

Typically used with thick-wall aluminum unthreaded pipe fittings.

Thin-Wall Aluminum Unthreaded Pipe

Typically used with thin-wall aluminum unthreaded pipe fittings.

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Typically used with low-pressure aluminum threaded pipe fittings.

Thick-Wall Aluminum Threaded Pipe Nipples and Pipe

Typically used with high-pressure aluminum threaded pipe fittings.

Brass and Bronze Pipe and Pipe Fittings

Standard-Wall Brass Threaded Pipe Nipples and Pipe

Typically used with low-pressure brass and bronze threaded pipe fittings.

Standard-Wall Brass Threaded
Pipe Nipples and Pipe with Sealant

Typically used with low-pressure brass and bronze threaded pipe fittings.

Standard-Wall Chrome-Plated Brass
Threaded Pipe Nipples and Pipe

Typically used with low-pressure brass and bronze threaded pipe fittings.

Thick-Wall Brass Threaded Pipe Nipples and Pipe

Typically used with medium-pressure brass and bronze threaded pipe fittings.

Standard-Wall Brass Unthreaded Pipe

Typically used with brass and bronze unthreaded pipe fittings.

Copper-Nickel Pipe and Pipe Fittings

Copper-Nickel Unthreaded Pipe

Also known as Pressure Class 200 pipe.

Standard-Wall Copper-Nickel
Threaded Pipe Nipples and Pipe

Also called close nipples, these Schedule 40 nipples are threaded on both ends to the center.

Metal Tubing for Flow

Medium-Pressure Copper Tubing for Drinking Water

This Type L tubing has thicker walls than Type M tubing. It withstands pressures up to 1,500 psi.

Low-Pressure Copper Tubing for Drinking Water

This Type M tubing has the thinnest walls of all our copper tubing for drinking water. It withstands pressures up to 980 psi.

High-Pressure Copper Tubing for Drinking Water

This Type K tubing has the thickest walls of all our copper tubing for drinking water. It withstands pressures up to 1,900 psi.

General Purpose Copper Tubing

Copper tubing has good corrosion resistance and excellent heat transfer qualities.

Cleaned and Capped Copper Tubing

This tubing comes cleaned and capped to prevent moisture and dirt from contaminating the inside. It is also known as refrigeration and air conditioning tubing.

Copper Tubing with Coated
Exterior for Natural and LP Gas

This tubing has special markings to identify it as a gas line.

Copper Tubing with Coated Interior

The inside of this tubing is lined with 99% pure tin for added corrosion resistance.

General Purpose Aluminum Tubing

Aluminum tubing is lightweight with good corrosion resistance and weldability.

Easy-Bend Aluminum Tubing

Bend this tubing into the shape you need without special tools or elbow fittings.

Ultra-Corrosion-Resistant Aluminum Tubing

Commonly used in marine applications, this tubing contains magnesium for extra corrosion resistance.

Mil. Spec. Aluminum Tubing

This tubing meets MIL-T-7081 standards.

Smooth-Bore Seamless Stainless Steel Tubing

This tubing has a seamless construction with no weld bead for unrestricted flow and is stronger than welded tubing.

Smooth-Bore Seamless Steel Tubing

Seamless construction with no weld bead gives this tubing an interior with unrestricted flow. It can be flared without splitting.

Corrosion-Resistant Steel Tubing

A thin layer of zinc yellow-chromate gives this tubing extra corrosion resistance, making it an economical alternative to stainless steel.

Stainless Steel

Multipurpose 304 Stainless Steel

From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications.

Polished Multipurpose 304 Stainless Steel

Polished to either a brushed or mirror-like finish, this material is often used to fabricate decorative enclosures and industrial workstations.

Corrosion-Resistant 316 Stainless Steel

The addition of molybdenum gives 316 stainless steel excellent corrosion resistance. Use it in a variety of marine and chemical-processing applications.

Tight-Tolerance Hardened 440C Stainless Steel

With a diameter that’s held to a close tolerance, this material is hardened for increased wear and abrasion resistance.

Gauge Siphon Tubes

Also known as pigtails, these siphon tubes protect dry gauges in high-temperature steam applications.

How to Identify and Measure Fittings

Iron and Steel Pipe and Pipe Fittings

Standard-Wall Steel Threaded Pipe 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 Threaded Pipe Nipples and Pipe

Extra-Thick-Wall Galvanized SteelThreaded Pipe Nipples and Pipe

Super-Thick-Wall Steel Threaded Pipe Nipples and Pipe

Thick-Wall Steel Unthreaded Pipe

Extra-Thick-Wall Steel Unthreaded Pipe

Drain, Waste, and Vent Iron Pipe

Stainless Steel Pipe and Pipe Fittings

Standard-Wall Stainless SteelUnthreaded Pipe Nipples and Pipe

Thick-Wall Stainless Steel Unthreaded Pipe

Extra-Thick-Wall Stainless Steel Unthreaded Pipe

Standard-Wall Stainless SteelThreaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel ThreadedPipe Nipples and Pipe with Sealant

Thick-Wall Stainless SteelThreaded Pipe Nipples and Pipe

Aluminum Pipe and Pipe Fittings

Standard-Wall AluminumUnthreaded Pipe Nipples and Pipe

Thick-Wall Aluminum Unthreaded Pipe

Thin-Wall Aluminum Unthreaded Pipe

Standard-Wall AluminumThreaded Pipe Nipples and Pipe

Thick-Wall Aluminum Threaded Pipe Nipples and Pipe

Brass and Bronze Pipe and Pipe Fittings

Standard-Wall Brass Threaded Pipe Nipples and Pipe

Standard-Wall Brass ThreadedPipe Nipples and Pipe with Sealant

Standard-Wall Chrome-Plated BrassThreaded Pipe Nipples and Pipe

Thick-Wall Brass Threaded Pipe Nipples and Pipe

Standard-Wall Brass Unthreaded Pipe

Copper-Nickel Pipe and Pipe Fittings

Copper-Nickel Unthreaded Pipe

Standard-Wall Copper-NickelThreaded Pipe Nipples and Pipe

Metal Tubing for Flow

Medium-Pressure Copper Tubing for Drinking Water

Low-Pressure Copper Tubing for Drinking Water

High-Pressure Copper Tubing for Drinking Water

General Purpose Copper Tubing

Cleaned and Capped Copper Tubing

Copper Tubing with CoatedExterior for Natural and LP Gas

Copper Tubing with Coated Interior

General Purpose Aluminum Tubing

Easy-Bend Aluminum Tubing

Ultra-Corrosion-Resistant Aluminum Tubing

Mil. Spec. Aluminum Tubing

Smooth-Bore Seamless Stainless Steel Tubing

Smooth-Bore Seamless Steel Tubing

Corrosion-Resistant Steel Tubing

Stainless Steel

Multipurpose 304 Stainless Steel

Polished Multipurpose 304 Stainless Steel

Corrosion-Resistant 316 Stainless Steel

Tight-Tolerance Hardened 440C Stainless Steel

Gauge Siphon Tubes

Gauge Siphon Tubes

Standard-Wall Galvanized Steel
Threaded Pipe Nipples and Pipe

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

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

Standard-Wall Stainless Steel
Unthreaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

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

Thick-Wall Stainless Steel
Threaded Pipe Nipples and Pipe

Standard-Wall Aluminum
Unthreaded Pipe Nipples and Pipe

Standard-Wall Aluminum
Threaded Pipe Nipples and Pipe

Standard-Wall Brass Threaded
Pipe Nipples and Pipe with Sealant

Standard-Wall Chrome-Plated Brass
Threaded Pipe Nipples and Pipe

Standard-Wall Copper-Nickel
Threaded Pipe Nipples and Pipe

Copper Tubing with Coated
Exterior for Natural and LP Gas