Stainless Steel Pipe | McMaster-Carr

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20,529 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.

Pipe and Fittings

Stainless Steel Threaded Pipe and Fittings

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Pair with low-pressure fittings; also known as Schedule 40

Low-Pressure Stainless Steel Threaded Pipe Fittings

Low-Pressure Stainless Steel Threaded Pipe Fittings

For pressures up to 500 psi

Thick-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Thick-Wall Stainless Steel Threaded Pipe Nipples and Pipe

Pair with high-pressure fittings; also known as Schedule 80

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

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

Male threads have sealant applied for extra leak protection in low-pressure lines

High-Pressure Stainless Steel Threaded Pipe Fittings

High-Pressure Stainless Steel Threaded Pipe Fittings

Strong enough for pressures up to 3,000 psi

Medium-Pressure Stainless Steel Threaded Pipe Fittings

Medium-Pressure Stainless Steel Threaded Pipe Fittings

For pressures up to 1,000 psi

Precision Extreme-Pressure Stainless Steel Threaded Pipe Fittings

Precision Extreme-Pressure Stainless Steel Threaded Pipe Fittings

The tightest tolerances of our stainless steel fittings; also called instrumentation fittings

Extreme-Pressure Stainless Steel Threaded Pipe Fittings

Extreme-Pressure Stainless Steel Threaded Pipe Fittings

Our strongest stainless steel threaded fittings withstand pressures as high as 15,000 psi

Premium Low-Pressure Stainless Steel Threaded Pipe Fittings

Premium Low-Pressure Stainless Steel Threaded Pipe Fittings

Cast in the U.S. and include certificate with traceable lot number

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe Assortments

Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe Assortments

Keep multiple lengths of low-pressure pipe nipples and pipe on hand

Low-Pressure Stainless Steel Threaded Pipe Fittings with Sealant

Low-Pressure Stainless Steel Threaded Pipe Fittings with Sealant

Male threads have sealant applied for extra leak protection in low-pressure lines

Low-Pressure Stainless Steel Threaded Pipe Flanges

Low-Pressure Stainless Steel Threaded Pipe Flanges

Create an access point in lines up to 290 psi; also known as Class 150 flanges

Miniature Medium-Pressure Stainless Steel Threaded Pipe Fittings

Miniature Medium-Pressure Stainless Steel Threaded Pipe Fittings

Less than two inches to fit in medium-pressure lines with limited space

Premium Medium-Pressure Stainless Steel Threaded Pipe Fittings

Premium Medium-Pressure Stainless Steel Threaded Pipe Fittings

Cast in the U.S. and include certificate with traceable lot number

High-Pressure Stainless Steel Threaded Pipe Flanges

High-Pressure Stainless Steel Threaded Pipe Flanges

Create an access point in lines up to 1,200 psi; also known as Class 300 or Class 600 flanges

SAE High-Pressure Stainless Steel Threaded Pipe Flanges

SAE High-Pressure Stainless Steel Threaded Pipe Flanges

Add an access point in high-pressure hydraulic lines; also known as Code 61 SAE hydraulic flanges

SAE High-Pressure Stainless Steel Threaded Two-Piece Pipe Flanges

SAE High-Pressure Stainless Steel Threaded Two-Piece Pipe Flanges

Pair with an adapter for a custom access point in hydraulic lines up to 5,000 psi

Stainless Steel Unthreaded Pipe and Fittings

Standard-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Standard-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Pair with low- and medium-pressure fittings; also known as Schedule 40

Thin-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Thin-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Pair with low-pressure fittings; also known as Schedule 10

Thick-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Thick-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Pair with high-pressure fittings; also known as Schedule 80

Medium-Pressure Stainless Steel Butt-Weld Pipe Fittings

Medium-Pressure Stainless Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in medium-pressure lines

Low-Pressure Stainless Steel Butt-Weld Pipe Fittings

Low-Pressure Stainless Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in low-pressure lines

Extra-Thick-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

Extra-Thick-Wall Stainless Steel Unthreaded Pipe Nipples and Pipe

The strongest stainless steel pipe we offer for extreme pressures; also known as Schedule 160

Low-Pressure Stainless Steel Unthreaded Pipe Flanges

Low-Pressure Stainless Steel Unthreaded Pipe Flanges

Create an access point in lines up to 230 psi

High-Pressure Stainless Steel Socket-Connect Pipe Fittings

High-Pressure Stainless Steel Socket-Connect Pipe Fittings

Easier to weld than butt-weld fittings and withstand pressures up to 3,000 psi

Low-Pressure Stainless Steel Socket-Connect Pipe Fittings

Low-Pressure Stainless Steel Socket-Connect Pipe Fittings

Easier to weld than butt-weld fittings and withstand pressures up to 300 psi

High-Pressure Stainless Steel Butt-Weld Pipe Fittings

High-Pressure Stainless Steel Butt-Weld Pipe Fittings

Beveled ends help create strong welds for maximum flow in lines up to 3,000 psi

High-Pressure Stainless Steel Unthreaded Pipe Flanges

High-Pressure Stainless Steel Unthreaded Pipe Flanges

Create an access point in lines up to 1,200 psi; also known as Class 300 or Class 600 flanges

Easy-Access Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Easy-Access Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Turn the T-handle to tighten and loosen without tools

Low-Pressure Stainless Steel Press-Socket Pipe Fittings

Low-Pressure Stainless Steel Press-Socket Pipe Fittings

Crimp onto pipe for a leak-free connection that's faster than threading or welding

Extreme-Pressure Stainless Steel Socket-Connect Pipe Fittings

Extreme-Pressure Stainless Steel Socket-Connect Pipe Fittings

Our strongest stainless steel unthreaded fittings withstand pressures up to 7,700 psi

Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Low-Pressure Stainless Steel Clamp-On Pipe Fittings

Clamp onto pipe for a strong seal and easy assembly

Low-Pressure Stainless Steel Compression Pipe Fittings

Low-Pressure Stainless Steel Compression Pipe Fittings

Tighten by hand for quick, leak-free connections in lines up to 200 psi

SAE High-Pressure Stainless Steel Unthreaded Pipe Flanges

SAE High-Pressure Stainless Steel Unthreaded Pipe Flanges

Add an access point in hydraulic lines up to 5,000 psi; also known as Code 61 SAE hydraulic flanges

Drain, Waste, and Vent Pipe and Fittings

Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Drain, Waste, and Vent PVC Clamp-On Pipe Fittings for Water

Clamp onto pipe for a strong seal and easy assembly

Drain, Waste, and Vent Iron and Steel Pipe Fittings

Drain, Waste, and Vent Iron and Steel Pipe Fittings

Durable enough for pipe systems above and below ground; also called no-hub and soil pipe fittings

Plastic Pipe and Fittings

Thick-Wall Plastic Pipe Fittings for Water

Thick-Wall Plastic Pipe Fittings for Water

Withstand heavy duty applications, such as water processing; also known as Schedule 80

Standard-Wall Plastic Pipe Fittings for Water

Standard-Wall Plastic Pipe Fittings for Water

The industry standard for low-pressure water lines; also known as Schedule 40

Clear-View Standard-Wall Plastic Pipe Fittings for Water

Clear-View Standard-Wall Plastic Pipe Fittings for Water

See inside low-pressure plumbing and water supply lines; also known as Schedule 40

CPVC Pipe Fittings for Chemicals

CPVC Pipe Fittings for Chemicals

Withstand salt solutions, acids, and other harsh substances

Easy-Access UV-Resistant Polypropylene Pipe Fittings for Chemicals

Easy-Access UV-Resistant Polypropylene Pipe Fittings for Chemicals

Clamp onto pipe for quick disassembly and withstand sunlight and harsh chemicals

Rubber Drain Pipe Plugs

Rubber Drain Pipe Plugs

Seal unthreaded pipe ends

Thick-Wall Plastic Pipe Flanges for Water

Thick-Wall Plastic Pipe Flanges for Water

Create an access point in high-pressure water supply lines; also known as Class 150 flanges

Aluminum Unthreaded Pipe and Fittings

Low-Pressure Aluminum Quick-Connect Pipe Fittings

Low-Pressure Aluminum Quick-Connect Pipe Fittings

Twist onto pipe for quick, sealed connections without threading, soldering, or welding

Iron and Steel Threaded Pipe and Fittings

High-Pressure Iron and Steel Threaded Pipe Fittings

High-Pressure Iron and Steel Threaded Pipe Fittings

Strong enough for pressures up to 6,000 psi

Iron and Steel Unthreaded Pipe and Fittings

Low-Pressure Iron and Steel Press-Socket Pipe Fittings

Low-Pressure Iron and Steel Press-Socket Pipe Fittings

Crimp onto pipe for a leak-free connection that's faster than threading or welding

High-Pressure Iron and Steel Socket-Connect Pipe Fittings

High-Pressure Iron and Steel Socket-Connect Pipe Fittings

Easier to weld than butt-weld fittings and withstand pressures up to 3,000 psi

Low-Pressure Iron and Steel Compression Pipe Fittings

Low-Pressure Iron and Steel Compression Pipe Fittings

Tighten by hand for quick, leak-free connections in lines up to 200 psi

Galvanized Iron and Steel Unthreaded Pipe and Fittings

Low-Pressure Galvanized Iron and Steel Clamp-On Pipe Fittings

Low-Pressure Galvanized Iron and Steel Clamp-On Pipe Fittings

Tighten the bolts to join pipe in air, vacuum, and gravity-flow systems up to 15 psi

Other Products

Stainless Steel

Stainless Steel

Resists corrosion and chemicals in most environments—all with material certificates for traceability

Tubing

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Hose

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Pipe Stub Ends

Connect a pipe flange to a pipe without needing to weld it in place

Duct and Fittings

Duct and Fittings

Circulate air through HVAC systems using round, rectangular, and fabric duct

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Manual On/Off Valves

Manual On/Off Valves

Start and stop flow through a line

Conduit and Fittings

Conduit and Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Duct Hose

Connect to blowers and vacuums to move air, fumes, dust, chips, and liquid

Sights

Observe and monitor the contents of pipes, tanks, and other containers

Pipe Expansion Joints

Pipe Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Pipe Locknuts

Thread onto the male end of a pipe fitting so it won't loosen from vibration

Chimney Pipe and Fittings

Chimney Pipe and Fittings

Vent hot air and fumes from boilers, furnaces, and stoves

Rotary Joints

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

Slip-On Framing and Fittings

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

Gauge Siphon Tubes

Gauge Siphon Tubes

Fill with water to protect dry gauges from steam and high-temperature liquids; also called pigtails

Sink Drain Tailpieces

Sink Drain Tailpieces

Connect drains to P-traps and S-traps

Clamp-On Framing Connectors

Clamp-On Framing Connectors

Two-piece design wraps around rails to modify structures without disassembling them

Sink Drains

Empty liquids from sinks into sewer lines

Weld-Together Framing Rails

Weld-Together Framing Rails

Permanently join with connectors to assemble heavy duty racks, shelving, and work tables

Duct Airflow Dampers

Duct Airflow Dampers

Regulate airflow to sections of duct

Tags

Hang throughout facilities to convey information

Pipe Markers

Identify pipe contents and flow in a range of environments

Air-Actuated On/Off Valves

Air-Actuated On/Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

Solenoid On/Off Valves

Solenoid On/Off Valves

A solenoid withstands rapid cycling for applications with frequent opening and closing

Liquid-Dispensing Metering Valves

Liquid-Dispensing Metering Valves

Program to dispense a specific amount of liquid every time and shut off when set amount is reached

Motor-Actuated On/Off Valves

Motor-Actuated On/Off Valves

An electric motor handles higher flow rates and pressures than solenoid valves

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)