Flat Stock | McMaster-Carr

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CARB Compliant 17 CCR 93120

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1006 Low-Carbon Steel

1006-1026 Low-Carbon Steel

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1008-1010 Low-Carbon Steel

1010-1018 Low-Carbon Steel

1018 Low-Carbon Steel

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Finish-Your-Own

Flame Resistant

Certificate Type

Material Certificate with Traceable Lot Number

Material Certificate with Traceable Lot Number and Cure Date

Material Certificate with Traceable Lot Number and Test Report

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35,806 Products

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

3,642 products

Stainless Steel

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

2,655 products

Aluminum

Lightweight, easy to machine, and corrosion resistant—all with material certificates for traceability

2,819 products

Plastic

A lightweight alternative to metal and glass

6,760 products

Brass

More machinable than copper and bronze—all with material certificates for traceability

499 products

Tungsten

Our densest metal resists wear and heat to make end mills, heat shields, electrodes, and more

67 products

Bronze

Better wear resistance than copper and brass—all with material certificates for traceability

210 products

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

2,526 products

Copper

Our most conductive metal for electrical applications—all with material certificates for traceability

714 products

Garolite

A strong, machinable alternative to metal and plastic widely used in circuit boards and gears

1,361 products

Glass

Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment

132 products

Rubber

Compresses and bounces back to shape; often used for sealing, cushioning, and shock absorbing

3,881 products

Carbon Fiber

The strongest composite we offer; comparable in strength to 6061 aluminum but lighter in weight

134 products

Ceramic

Hard and wear resistant, it also withstands corrosion and high temperatures

269 products

Fiberglass

A lightweight alternative to metal and wood widely used in electrical and structural applications

210 products

Titanium

The most corrosion-resistant metal we offer—all with material certificates for traceability

123 products

Nickel

An upgrade from stainless steel to withstand harsh chemicals and acids—all with material certificates for traceability

95 products

Fabric

Use to cover, clean, and insulate objects

206 products

Wood

Commonly used to build ramps, crates, and prototypes or to make repairs

154 products

Aramid

Strong, lightweight, and an excellent thermal insulator; also known as Nomex

10 products

Leather

Durable and long lasting; often used for belting, lacing, and sealing applications

52 products

Graphite

Compressible or conductive for making high-temperature seals, furnace parts, and crucibles

46 products

Lead

A dense insulator often used to shield against radiation and absorb sound and vibration

65 products

Mica

An electrical insulator that resists high temperatures; use in circuit breakers and heating elements

51 products

Wax

Create seals and prototypes, lubricate tools, and polish equipment

34 products

Cobalt

Resists impact and rapid temperature changes—all with material certificates for traceability

5 products

Tantalum

Conductive with a higher melting point than most metals—all with material certificates for traceability

6 products

Tin

Soft and malleable for forming gaskets and filters; also mixes with other metals to make solder

10 products

Hard Fiber

Chemically treated to be hard and dense, this is the easiest composite to machine in our offering

62 products

Felt

Thicker and more absorbent than fabric for insulating, polishing, cushioning, and gasketing

885 products

Zinc

Draws corrosion away from nearby metal; an alternative to lead for sound barriers and vibration dampers

19 products

Kevlar

Super tough for protection against prolonged wear and abrasion

5 products

Carbon

An electrical conductor that’s often used in electronics and sensors

21 products

Platinum

Formable and conductive while resisting extreme heat—all with material certificates for traceability

4 products

Molybdenum

Retains its shape and strength in extreme temperatures—all with material certificates for traceability

16 products

Niobium

Conductive and corrosion resistant even at extreme temperatures—all with material certificates for traceability

6 products

Fastening and Joining

Shim Stock

Cut into custom shapes to align, space, and level components on dies, presses, and machinery

1,260 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

51 products

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

66 products

Communication

Tags

Hang throughout facilities to convey information

580 products

Index Cards

Record information on small cards

3 products

Fluid Handling

Filter Mesh

Strain particles out of various substances

4,288 products

Perforated Sheets

Filter, sort, separate, and strain liquid or dry material

237 products

Sintered Filters

Tiny holes let particles such as air, gas, and vapor pass through while trapping contaminants

17 products

Filter Fabric

Fit into irregular shapes and take contaminants out of liquid

29 products

Building and Machinery Hardware

Bolt-Together Framing and Fittings

Fasten through equally spaced holes to build and adjust guards, tables, and racks

6 products

Temporary Floor Protectors

Protect floors from stains, dirt, and wear during painting and remodeling work

12 products

Power Transmission

Brake and Clutch Lining

Replace the lining in brakes and clutches; also known as friction material

145 products

Fabricating and Machining

Lathe Tool Blanks

Machine custom lathe tool bits

46 products

Dovetail Blanks

Machine a blank workpiece with precut dovetails and locating slots for easy setup

5 products

3D Printer Build Surfaces

Stick on top of printer beds for more accurate parts than those made on bare beds

28 products

Heating, Ventilation, and Air Conditioning

Thermal Insulation Sheets

Line the walls of furnaces, freezers, ductwork, and buildings to keep heat in or out

251 products

Pipe Insulation

Fit around pipe, tubing, and tanks to reduce heat loss or condensation

109 products

Electrical

Circuit Boards

Create your own circuit board designs by adding components

72 products

Thermal Interface Material

Dissipate heat away from electronic components

24 products

Containers, Storage, and Furniture

Metal Panels

Close off openings in structures while allowing air to pass through

254 products

Facility and Grounds Maintenance

Tarps

Shield equipment from weather, flames, chemicals, and more

482 products

Leak Drainage Tarps

Protect work areas and equipment from overhead leaks

31 products

Drop Cloths

Cover floors to protect them from spills, splatters, and dirty shoes

19 products

Material Handling

Foam Wrap

Cushion items with less bulk than bubble wrap to protect them while shipping and storing

15 products

Corrugated Sheets

Slide between pallets and stacked items to protect them from damage or reinforce the bottom of boxes

20 products