Welding Supplies | McMaster-Carr

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4,998 Products

Fastening and Joining

Oxyacetylene Torches

Oxyacetylene Torches

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

Gas Welding Rods

Gas Welding Rods

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

Oxyacetylene Welding Kits

Oxyacetylene Welding Kits

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

Welding Gas Flashback Arresters

Welding Gas Flashback Arresters

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

TIG Torch Nozzles

TIG Torch Nozzles

Direct the flow of shielding gas when TIG welding

Tungsten Electrode Sharpeners

Tungsten Electrode Sharpeners

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

Tungsten Electrodes

Tungsten Electrodes

Heat in TIG torches to create welds

TIG Torch Back Caps

TIG Torch Back Caps

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

TIG Torch Accessory Kits

TIG Torch Accessory Kits

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

TIG Torch Collets

TIG Torch Collets

Grip tungsten electrodes for TIG welding

TIG Welding Rods

TIG Welding Rods

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

TIG Welding Rod Feeders

TIG Welding Rod Feeders

Advance TIG rods for controlled welds

TIG Torch Collet Bodies

TIG Torch Collet Bodies

Connect TIG torch nozzles to TIG torches

TIG Torch Gas Diffusers

TIG Torch Gas Diffusers

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

TIG Torches

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

TIG Torch Insulators

TIG Torch Insulators

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

Tungsten Electrode Grinders

Tungsten Electrode Grinders

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

TIG Welders

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

TIG Torch-to-Machine Connectors

TIG Torch-to-Machine Connectors

Link TIG torches and TIG welders

TIG Torch Bodies

TIG Torch Bodies

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

TIG Torch Heads

TIG Torch Heads

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

TIG Torch Power Cable Adapters

TIG Torch Power Cable Adapters

Connect your power cable to your argon hose for TIG welding

Tungsten Electrode Stick-Out Gauges

Tungsten Electrode Stick-Out Gauges

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

MIG Gun Contact Tips

MIG Gun Contact Tips

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

MIG Wire Cleaning Pads

MIG Wire Cleaning Pads

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

MIG Gun Gas Diffusers

MIG Gun Gas Diffusers

Evenly distribute shielding gas for high-quality MIG welds

MIG Gun Nozzles

MIG Gun Nozzles

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

MIG Welding Wire

MIG Welding Wire

Use with MIG welders to fuse metals together

MIG Wire Lubricating Pads

MIG Wire Lubricating Pads

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

MIG Guns

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

MIG Gun Insulators

MIG Gun Insulators

Protect MIG gun nozzles from heat and damage while welding

MIG Welders

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

MIG Welding Liners

MIG Welding Liners

Guide MIG welding wire through the gun to the contact tip

Stud Welders

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

Stick Electrodes

Stick Electrodes

Flux coated for stability and speed when welding most metals

Stick Electrode Holders

Stick Electrode Holders

Grip and position electrodes during stick welding

Stick Welders

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

Stick Electrode Ovens

Stick Electrode Ovens

Store electrodes at their optimal temperature and keep them dry

Hot Air Welding Rods

Hot Air Welding Rods

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

Hot Air Welders

Hot Air Welders

Join and repair plastics using hot air or small metal stakes

Weld-Backing Tape

Weld-Backing Tape

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

Welding Antispatter

Welding Antispatter

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

Welding Cables

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

Band Saw Blade Welders

Band Saw Blade Welders

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

Spot Welding Electrode Cleaners

Spot Welding Electrode Cleaners

Shape deformed electrodes without removing from the welder

Spot Welding Electrodes

Spot Welding Electrodes

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

Spot Welders

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

Multiprocess Welders

Multiprocess Welders

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

Welding Plates

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

Ultrasonic Welders

Ultrasonic Welders

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

Welding Water Coolers

Welding Water Coolers

Cool welding guns and torches by circulating water

Welding Wire Drum Cones

Welding Wire Drum Cones

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

Oxygen/Propylene Torches

Oxygen/Propylene Torches

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

Brazing Alloys

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

Soldering Flux

Clean and prepare surfaces for soldering

Solder

Join pieces of metal without melting the base material

Brazing Stop-Off

Brazing Stop-Off

Keep flux and metal from flowing into unwanted areas while brazing

Brazing Rings

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

Brazing Flux

Clean and prepare metal surfaces for brazing

Flux Removers

Get rid of residue left behind by no-clean flux

Solder Wire Feeders

Solder Wire Feeders

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

Tank Wrenches

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

Fabricating and Machining

Clamps

Hold workpieces securely in place

Welding Pliers

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

Welding Positioners

Welding Positioners

Mount workpieces for circular welds

Swivel Pads

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

Hammers

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

Torch Lighters

Ignite gas torches

Lighters

Light flames and recharge for repeated long-term use

Heat Guns

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

Heat Gun Nozzles

Heat Gun Nozzles

Concentrate, adapt, and direct airflow from heat guns

Melting Pots

Melt solder, metal, adhesive, resin, and wax

Plasma Cutter Guides

Plasma Cutter Guides

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

Plasma Cutters

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

Plasma Cutter Replacement Parts

Plasma Cutter Replacement Parts

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

Nozzle Tip Cleaners

Nozzle Tip Cleaners

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

Needle Scalers

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

Chisel Bits

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

Scaler Needles

Replace needles in your needle scaler

Air Hammers

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

Scrapers

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

Fixture Tables

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

Fixturing Squares

Fixturing Squares

Build different fixtures on multiple sides of the same block

Bevelers

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

Safety Equipment

Hats

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

Welding Helmets

Welding Helmets

Guard against scratches and weld spatter better than face shields

Welding Lens Magnifiers

Welding Lens Magnifiers

Attach to welding lenses to enhance details

Welding Lenses

Replace the lens in your welding helmet or goggles

Gloves

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

Jackets

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

Finger Cots

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

Respirators

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

Aprons

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

Respirator Breathing Tubes

Respirator Breathing Tubes

Deliver clean, breathable air to your hood or helmet respirator

Umbrellas

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

Safety Glasses

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

Arm Sleeves

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

Cape Sleeves

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

Cape Sleeve Bibs

Cape Sleeve Bibs

Snap onto cape sleeves to protect your stomach when welding

Chaps

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

Hoods

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

Leggings

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

Coveralls

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

Pants

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

Safety Goggles

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

Arm Pads

Prevent burns while welding

Face Shields

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

Backhand Pads

Slip over gloves for additional protection against sparks and spatter

Lens Covers

Protect filter lenses from scratches and weld spatter

Curtains

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

Welding Pads

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

Protective Screens

Protective Screens

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

Heat-Resistant Blankets

Heat-Resistant Blankets

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

Curtain Partitions

Curtain Partitions

Section off work spaces, locker rooms, and restricted areas

Fluid Handling

Hose and Hose Fittings

Hose and Hose Fittings

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

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Pipe and Pipe Fittings

Pipe and Pipe Fittings

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

Check Valves

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

Propane Tank Valves

Propane Tank Valves

Start and stop the flow of propane from a tank

Pressure Gauges

Pressure Gauges

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

Pressure-Regulating Valves

Pressure-Regulating Valves

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

Flowmeters

Measure the flow rate of a liquid or gas

Liquid-Level Gauges

Liquid-Level Gauges

Monitor fluid levels in containers

Liquid Chillers

Liquid Chillers

Cool down liquids to use them with temperature-sensitive equipment

Measuring and Inspecting

Welding Gauges

Check alignment, corner dimensions, and other weld measurements

Squares

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

Flaw-Detecting Dyes

Flaw-Detecting Dyes

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

Magnetic Particles

Magnetic Particles

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

Magnetic Particle Flaw Detection Kits

Magnetic Particle Flaw Detection Kits

Everything you need to detect imperfections on or below metal surfaces

Machine Vision Cameras

Machine Vision Cameras

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

Magnetic Yokes

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

Electrical

Grounding Clamps

Grounding Clamps

Attach grounding wire to equipment to ground electrical current

Electrical Cable

Electrical Cable

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

Lug Covers

Install over welding lugs to prevent accidental contact with other welding connections

Terminals

Attach to the end of wire to connect circuits in control panels, motors, and small machines

Electrical Connectors and Cords

Electrical Connectors and Cords

Supply power to equipment by combining plugs, sockets, receptacles, and cords

Wire Sleeving

Bundle wiring and protect from abrasion and heat

Containers, Storage, and Furniture

Welding Rod Carriers

Welding Rod Carriers

Store, protect, and organize TIG welding rods

Welding Equipment Totes

Welding Equipment Totes

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

Welding Wire Carriers

Welding Wire Carriers

Protect welding wire from humidity and rust

Gas Tank Safety Caps

Gas Tank Safety Caps

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

Gas Tank Safety Collars

Gas Tank Safety Collars

Protect valves on acetylene tanks without having to remove the regulator

Gas Tanks

Safely transport and store inert gas, acetylene, or oxygen

Propane Tanks

Safely transport and store propane gas

Crucibles

Mix and melt powders, chemicals, and metals

Hose Reels

Store hose neatly to remove tripping hazards and reduce wear

Tank Patches

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

Welding Torch Holders

Welding Torch Holders

Secure welding torches when not in use

Communication

Reference Books

Reference Books

Keep industrial information, regulations, and processes on hand

Signs

Everything from accident prevention to traffic control to exit signs

Raw Materials

Propylene

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

Oxygen

Use alongside other fuels to increase flame temperature

Butane

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

Propane

Fuel heating, thawing, and soldering applications

Fabric

Use to cover, clean, and insulate objects

Methylene Chloride

Methylene Chloride

Commonly used in paint strippers, degreasers, and chemicals for welding plastic

Acetone

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

Methyl Ethyl Ketone

Methyl Ethyl Ketone

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

Material Handling

Carts

Transport objects around your facility

Cylinder Trucks

Cylinder Trucks

Transport cylinders safely

Robot Covers

Shield robot arms from dirt and damage

Power Transmission

Belt Joining Kits

Belt Joining Kits

Everything you need to soften belt ends and join them together

Lubricating

Coolants

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

Lighting

Flashlights

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

Heating, Ventilation, and Air Conditioning

Heat Barriers

Protect equipment and surfaces from damage caused by nearby heat sources

Building and Machinery Hardware

Window Film

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

Bellows

Prevent dust and debris from damaging moving parts

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