Welding Supplies | McMaster-Carr

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5,200 Products

Fastening and Joining

Oxyacetylene Torches

Create a torch or replace parts with a selection of handles, nozzles, cutting tips, and more

81 products

Gas Welding Rods

Melt in extra metal while gas welding to help workpieces hold together

7 products

Oxyacetylene Welding Kits

Everything needed for welding and cutting with oxyacetylene except the gas cylinders

23 products

Welding Gas Flashback Arresters

Attach to your gas welder to extinguish flames and stop reverse gas flow

24 products

TIG Torch Nozzles

Direct the flow of shielding gas when TIG welding

61 products

Tungsten Electrodes

Heat in TIG torches to create welds

80 products

Tungsten Electrode Sharpeners

Heat electrodes and dip them to create a new point at the tip, which helps improve weld quality

1 product

TIG Torch Accessory Kits

The fittings you need for welding, including collets, collet bodies, and nozzles

28 products

TIG Welding Rods

Add extra metal while TIG welding to help flatten welds and hold workpieces together

299 products

TIG Torch Gas Diffusers

For more control and less waste, smooth the flow of shielding gas as it leaves TIG torch nozzles

15 products

TIG Welding Rod Feeders

Advance TIG rods for controlled welds

1 product

TIG Torch Back Caps

Cover the part of an electrode that sticks out the back of TIG torches

5 products

TIG Torch Collets

Grip tungsten electrodes for TIG welding

6 products

TIG Torches

Include a torch body and cable and hose assembly to plug into your TIG welder

57 products

Tungsten Electrode Grinders

For frequent and high quality TIG welding, quickly create a fresh point at the tip of electrodes

7 products

TIG Torch Insulators

Seal between TIG nozzles and torches to stop gas from escaping and protect torch parts from heat

11 products

TIG Torch Collet Bodies

Connect TIG torch nozzles to TIG torches

8 products

TIG Welders

Everything needed for TIG welding except the shielding gas; TIG welds are stronger than MIG welds

5 products

TIG Torch-to-Machine Connectors

Link TIG torches and TIG welders

6 products

TIG Torch Power Cable Adapters

Connect your power cable to your argon hose for TIG welding

3 products

TIG Torch Bodies

Attach collet bodies, collets, nozzles, and other components for TIG welding

32 products

TIG Torch Heads

Swivel or rotate to weld in hard-to-reach areas

10 products

Tungsten Electrode Stick-Out Gauges

Measure the distance tungsten electrodes stick out from your nozzle for consistent TIG welding

2 products

MIG Gun Contact Tips

Attach to MIG guns to guide welding wire and electric current to the weld site

17 products

MIG Gun Nozzles

Direct shielding gas towards welds and protect contact tips from molten metal

33 products

MIG Gun Gas Diffusers

Evenly distribute shielding gas for high-quality MIG welds

10 products

MIG Wire Cleaning Pads

Reduce weld spatter to produce neater welds by removing rust and dirt from welding wire

1 product

MIG Wire Lubricating Pads

Grease rough and rusty MIG welding wire so it feeds smoothly through your welder

1 product

MIG Welding Wire

Use with MIG welders to fuse metals together

183 products

MIG Guns

Direct, start, and stop the flow of MIG welding wire and current to the spot you're welding

17 products

MIG Welders

Everything needed for MIG welding except the shielding gas; MIG welding is quicker than TIG welding

3 products

MIG Gun Insulators

Protect MIG gun nozzles from heat and damage while welding

3 products

MIG Welding Liners

Guide MIG welding wire through the gun to the contact tip

8 products

Stud Welders

Join studs and pins to metal, leaving no marks on the back of the material

47 products

Stick Electrodes

Flux coated for stability and speed when welding most metals

118 products

Stick Electrode Holders

Grip and position electrodes during stick welding

21 products

Stick Electrode Ovens

Store electrodes at their optimal temperature and keep them dry

4 products

Stick Welders

Form strong welds in everything from rusted pipes to heavy machinery out in the field

3 products

Hot Air Welding Rods

Melt with heat from a welder to create joints between pieces of plastic

98 products

Hot Air Welders

Join and repair plastics using hot air or small metal stakes

13 products

Welding Pliers

Perform a variety of welding tasks such as spatter removal and wire cutting

2 products

Spot Welding Electrode Cleaners

Shape deformed electrodes without removing from the welder

2 products

Spot Welding Electrodes

Press onto the tips of spot welders to change the size and shape of the weld

20 products

Band Saw Blade Welders

Repair broken blades or join the ends of coil stock to make your own blades

1 product

Spot Welders

Form small welds on steel and stainless steel, or fix cracks on plastic surfaces

15 products

Multiprocess Welders

Repair metal with a single machine that performs MIG, TIG, and stick welding

5 products

Welding Antispatter

Prevents weld spatter from sticking to contact tips, nozzles, and welding accessories

5 products

Welding Plates

Create a custom dam or mold to control metal flow while welding

8 products

Welding Cables

Quickly connect your welder to an electrode or other component, or ground your setup

10 products

Weld-Backing Tape

Stick to the back of welding seams to contain spatter and prevent gases from weakening the weld

11 products

Welding Lug Covers

Install over welding lugs to prevent accidental contact with other connections

1 product

Ultrasonic Welders

Use sound waves to join plastic to itself or other materials without distortion or discoloration

15 products

Welding Water Coolers

Circulate coolant through your torches to prevent damage and take fewer cooldown breaks

3 products

Welding Wire Drum Cones

Snap onto drums to shield welding wire from slag and grinding dust that could weaken welds

3 products

Welding Lugs

Screw, hammer, or crimp on to secure welding cable connections

12 products

Tank Wrenches

Turn valve stems, regulator inlet nuts, and caps on welding tanks

5 products

Brazing Alloys

Form stronger bonds between metal parts than solder without melting the base material

142 products

Brazing Stop-Off

Keep flux and metal from flowing into unwanted areas while brazing

2 products

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

11 products

Brazing Flux

Clean and prepare metal surfaces for brazing

15 products

Soldering Flux

Clean and prepare surfaces for soldering

64 products

Solder

Join pieces of metal without melting the base material

358 products

Flux Removers

Get rid of residue left behind by no-clean flux

4 products

Solder Wire Feeders

Feed precise amounts of wire to the tip of your iron for efficient soldering

1 product

Oxygen/Propylene Torches

Cut, weld, and braze steel up to 3/16" thick

1 product

Fabricating and Machining

Clamps

Hold workpieces securely in place

814 products

Welding Positioners

Mount workpieces for circular welds

4 products

Swivel Pads

Attach to the ends of screws, threaded studs, or C-clamps to apply even pressure on uneven surfaces

8 products

Hammers

Strike nails and chisels to drive them; also use to shape surfaces

8 products

Chisel Bits

Pair with powered hammers or needle scalers to chip material off of workpieces

24 products

Needle Scalers

Remove rust, scale, paint, and weld spatter from tight spots and irregularly shaped surfaces

13 products

Scaler Needles

Replace needles in your needle scaler

8 products

Air Hammers

Chisel, cut, chip, scrape, and stake material more quickly than manual chisels

4 products

Scrapers

Remove paint, wallpaper, adhesives, waxes, gaskets, and weld spatter

Light flames and recharge for repeated long-term use

2 products

Heat Guns

Blow heated air for tasks such as stripping paint, shrinking film, and softening adhesives

18 products

Heat Gun Nozzles

Concentrate, adapt, and direct airflow from heat guns

4 products

Melting Pots

Melt solder, metal, adhesive, resin, and wax

24 products

Plasma Cutter Guides

Pair with a plasma or oxyacetylene torch for balance and stability as you cut and bevel shapes

3 products

Plasma Cutters

Accurately cut many types of metal; the torch fits into tighter spaces than a portable saw

2 products

Plasma Cutter Replacement Parts

Replace cutting tips, electrodes, and other components of your plasma cutter

72 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

48 products

Fixture Squares

Build different fixtures on multiple sides of the same block

13 products

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

42 products

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

319 products

Nozzle Tip Cleaners

Clear out residue from small openings, such as nozzles or torch tips

5 products

Bevelers

Create smooth, beveled edges on flat plates or plastic pipe and tubing

4 products

Safety Equipment

Hats

Shield your head from sun, rain, cold, and sparks

13 products

Welding Helmets

Guard against scratches and weld spatter better than face shields

12 products

Welding Lenses

Replace the lens in your welding helmet or goggles

65 products

Welding Lens Magnifiers

Attach to welding lenses to enhance details

8 products

Welding Helmet Bibs

Clip to any welding helmet to protect your chin and neck from flames, sparks, and UV light

3 products

Gloves

Shield your hands from cuts, heat, cold, chemical splashes, and electrical and welding sparks

24 products

Jackets

Thicker than shirts for extra protection against dirt, rain, cold, chemical splashes, and sparks

19 products

Finger Cots

Guard fingers from heat and abrasion, or protect items from contamination

1 product

Arm Sleeves

Protect your arms from cuts, sparks, heat, and chemical splashes

18 products

Respirators

Filter particles, hazardous vapors, and other contaminants from the air

7 products

Respirator Cartridges

Replace the cartridge on your respirator when breathing becomes difficult

4 products

Respirator Breathing Tubes

Deliver clean, breathable air to your hood or helmet respirator

2 products

Respirator Blowers

Replace blowers in powered respirators to keep the clean air flowing

2 products

Respirator Harnesses

Strap a respirator to your back so it's more comfortable to wear

1 product

Cape Sleeves

Protect your arms and chest from heat, flame, and weld spatter

2 products

Chaps

Shield the front of your legs from cuts, radiant heat, flames, and welding sparks

1 product

Aprons

Protect your torso from dirt, chemical splashes, and electrical and welding spark

17 products

Safety Glasses

Shield your eyes from dirt, sunlight, lasers, and electrical and welding sparks

18 products

Bandanas

Keep sun, dust, and sweat off your face

1 product

Cape Sleeve Bibs

Snap onto cape sleeves to protect your stomach when welding

2 products

Pants

Insulate your legs from dirt, cold, heat, rain, and electrical and welding sparks

1 product

Safety Goggles

Fully protect your eyes from flying dust and debris or harmful infrared light during welding

12 products

Hoods

Shield your head and neck from dirt, heat, cold, and electrical and welding sparks

3 products

Leggings

Protect shins and feet from radiant heat, flames, welding sparks, and molten metal splashes

4 products

Coveralls

Shield your full body against dirt, rain, heat, chemical splashes, and electrical and welding sparks

1 product

Umbrellas

Compact, in-ground, vehicle-mount, and welding umbrellas

2 products

Arm Pads

Prevent burns while welding

2 products

Face Shields

Protect your face from dirt, chemical splashes, and electrical and welding sparks

13 products

Backhand Pads

Slip over gloves for additional protection against sparks and spatter

2 products

Sweatbands

Absorb sweat from your head or arms

1 product

Bib Overalls

Protect your legs and torso from cold, rain, chemicals, and flames

1 product

Lens Covers

Protect filter lenses from scratches and weld spatter

2 products

Curtains

Pull shut to protect against dust, weld spatter, heat, and splashing liquid

79 products

Heat-Resistant Blankets

Drape over surfaces or wrap around parts to protect them from flames, sparks, and weld spatter

30 products

Welding Pads

Smaller than blankets to prevent heat and flame damage in localized areas

2 products

Protective Screens

Set up to protect against dust, weld spatter, heat, and splashing liquid

39 products

Curtain Partitions

Section off work spaces, locker rooms, and restricted areas

15 products

Containers, Storage, and Furniture

Welding Rod Carriers

Store, protect, and organize TIG welding rods, tungsten electrodes, and stick electrodes

6 products

Welding Wire Carriers

Protect welding wire from humidity and rust

1 product

Welding Equipment Totes

Carry an oxyacetylene torch and up to two tanks from one job to the next

1 product

Gas Tank Safety Collars

Protect valves on acetylene tanks without having to remove the regulator

1 product

Gas Tank Safety Caps

Protect valves on high-pressure gas tanks without having to remove the regulator

1 product

Gas Tanks

Safely transport and store inert gas, acetylene, or oxygen

7 products

Propane Tanks

Safely transport and store propane gas

12 products

Crucibles

Mix and melt powders, chemicals, and metals

6 products

Hose Reels

Store hose neatly to remove tripping hazards and reduce wear

5 products

Tank Patches

Spin with a handheld electric router to seal holes in plastic tanks and containers

2 products

Helmet Bags

Carry your helmet and shield it from scratches, dents, and rain

1 product

Welding Torch Holders

Secure welding torches when not in use

5 products

Fluid Handling

Hose and Hose Fittings

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

112 products

Hose Crimpers

Crimp ferrules onto hose to secure fittings

2 products

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

81 products

Pressure Gauges

Measure pressure in pumps, filters, regulators, and process lines

2 products

Propane Tank Valves

Start and stop the flow of propane from a tank

7 products

Flowmeters

Measure the flow rate of a liquid or gas

1 product

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

5 products

Liquid-Level Gauges

Monitor fluid levels in containers

1 product

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

109 products

Liquid Chillers

Cool down liquids to use them with temperature-sensitive equipment

18 products

Electrical

Grounding Clamps

Attach grounding wire to equipment to ground electrical current

24 products

Electrical Cable

Make multi-wire connections; generally for higher voltages and longer distances than wire

20 products

Electrical Cord Adapters

Change the electrical connection style between an outlet and your equipment

2 products

Electrical Plugs

Pair with sockets or receptacles to transmit power or data

17 products

Electrical Receptacles

Install in a wall or panel to transmit power or data to plugs or sockets

6 products

Electrical Cords

Connect equipment and devices to a power supply

15 products

Electrical Sockets

Pair with plugs or receptacles to transmit power or data

6 products

Wire Sleeving

Bundle wiring and protect from abrasion and heat

6 products

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

14 products

Raw Materials

Propylene

Produce a hotter flame than propane for better performance in brazing applications

1 product

Oxygen

Use alongside other fuels to increase flame temperature

1 product

Butane

Burns cleaner than propane at similar temperatures; use for heating, thawing, and soldering

2 products

Propane

Fuel heating, thawing, and soldering applications

2 products

Fabric

Use to cover, clean, and insulate objects

14 products

Acetone

Often used to thin and remove adhesives from metal parts; faster drying than methyl ethyl ketone

3 products

Methyl Ethyl Ketone

Often used as a thinner for resins, adhesives, fiberglass, and lacquers

2 products

Material Handling

Carts

Transport objects around your facility

9 products

Cylinder Trucks

Transport cylinders safely

25 products

Robot Covers

Shield robot arms from dirt and damage

29 products

Measuring and Inspecting

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

3 products

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

2 products

Flaw-Detecting Dyes

Reveal flaws and cracks in nonporous material by turning them red under natural light

2 products

Magnetic Particles

Apply to metal and magnetize with a yoke to show defects on and below the surface

6 products

Magnetic Particle Flaw Detection Kits

Everything you need to detect imperfections on or below metal surfaces

2 products

Machine Vision Cameras

Inspect objects on conveyor lines for defects such as surface flaws and missing screws

19 products

Magnetic Yokes

Pair with magnetic particles to find defects on or below metal surfaces

2 products

Communication

Reference Books

Keep industrial information, regulations, and processes on hand

1 product

Signs

Everything from accident prevention to traffic control to exit signs

18 products

Power Transmission

Belt Joining Kits

Everything you need to soften belt ends and join them together

12 products

Lighting

Flashlights

Direct a beam of light to precisely where it’s needed

1 product

Lubricating

Coolants

Apply while machining to dissipate heat, remove shavings, and prevent corrosion

2 products

Heating, Ventilation, and Air Conditioning

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

2 products

Building and Machinery Hardware

Window Film

Apply to windows for privacy, insulation, less glare, and a lower chance of shattering

3 products

Bellows

Prevent dust and debris from damaging moving parts

12 products