Steel Pipe Adapters | McMaster-Carr

	Pipe Size Pipe Size

1/16
1/8
1/4
3/8
1/2
5/8
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12

	Thread Type Thread Type

	Type Type


Connector	Reducing Adapter

Adapter	Bushing

Pipe	Reducer

Flange	Union

Clamp	Outlet

Stub End	Trap

	Material Material

	Finish Finish

Zinc-Phosphate Coated

	Shape Shape


Straight	90° Elbow

Tee	45° Elbow

Cross	180° Bend

270° Bend	Manifold

Wye

	Connection Style Connection Style

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Threading Threading

Threaded on Both Ends

Threaded on One End

Unthreaded

Fully Threaded

	For Use With For Use With

	Schedule Schedule


40	80

160	XXH

	Gender Gender

Female

Male

	Connection Type Connection Type


Pipe	Tube

Hose

	Maximum Pressure Maximum Pressure

	For Pipe Schedule For Pipe Schedule

160

XXH

Any

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

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

International Fuel Gas
Code

Uniform Mechanical Code

UPC

	For Pipe Material For Pipe Material

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

RoHS Compliant

RoHS Compliant with
Exemptions

	ID ID

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

REACH Compliant

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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.

Low-Pressure Iron and Steel Threaded Pipe Fittings

Use these fittings for low-pressure applications in noncorrosive environments.

Standard-Wall Steel Threaded Pipe Nipples and Pipe

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

Low-Pressure Steel Threaded Pipe Flanges

These flanges are for low-pressure applications in noncorrosive environments.

Low-Pressure Cast Iron Threaded Pipe Fittings

Made of cast iron, these fittings are brittle and can be quickly opened with the strike of a sledge hammer in case of an emergency.

Low-Pressure Galvanized Iron and
Steel Threaded Pipe and Pipe Fittings

A galvanized finish provides better corrosion resistance than other types of iron and steel.

Extreme-Pressure Steel
Threaded Pipe and Pipe Fittings

Use in extreme-pressure applications up to 10,000 psi.

High-Pressure Iron and Steel
Threaded Pipe and Pipe Fittings

Use in high-pressure applications up to 6,000 psi.

Medium-Pressure Iron and Steel
Threaded Pipe and Pipe Fittings

Use in medium-pressure applications up to 1,400 psi.

Iron and Steel Unthreaded Pipe and Pipe Fittings

Pipe and fittings weld together for a permanent connection that is stronger and less likely to leak than threaded and clamp-on connections.

Iron and Steel Pipe Fittings with Flanged Ends

Bolt the flanged end of these fittings to another same-size flange, pump, or valve with a gasket to create an access point in a pipe line.

Iron and Steel Clamp-On Pipe and Pipe Fittings

Pipe and fittings connect with a clamp, so they can be taken apart as needed for maintenance and repair.

Low-Pressure Clamp-On Connectors

Use in low-pressure applications up to 20 psi.

Rectangular Manifolds

Tube Fittings for Steel Tubing

Fittings have fair corrosion resistance. They are more economical than other metal tube fittings.

Hose Fittings

Connect these fittings to lengths of hose. Hose fittings are typically used in high-flow, suction, and hydraulic applications.

How to Identify and Measure Fittings

Pipe and Pipe Fittings

Low-Pressure Iron and Steel Threaded Pipe Fittings

Standard-Wall Steel Threaded Pipe Nipples and Pipe

Low-Pressure Steel Threaded Pipe Flanges

Low-Pressure Cast Iron Threaded Pipe Fittings

Low-Pressure Galvanized Iron andSteel Threaded Pipe and Pipe Fittings

Extreme-Pressure SteelThreaded Pipe and Pipe Fittings

High-Pressure Iron and SteelThreaded Pipe and Pipe Fittings

Medium-Pressure Iron and SteelThreaded Pipe and Pipe Fittings

Iron and Steel Unthreaded Pipe and Pipe Fittings

Iron and Steel Pipe Fittings with Flanged Ends

Iron and Steel Clamp-On Pipe and Pipe Fittings

Low-Pressure Clamp-On Connectors

Rectangular Manifolds

Tube Fittings for Steel Tubing

Tube Fittings for Steel Tubing

Hose Fittings

Hose Fittings

Low-Pressure Galvanized Iron and
Steel Threaded Pipe and Pipe Fittings

Extreme-Pressure Steel
Threaded Pipe and Pipe Fittings

High-Pressure Iron and Steel
Threaded Pipe and Pipe Fittings

Medium-Pressure Iron and Steel
Threaded Pipe and Pipe Fittings