Alumina Ceramic | McMaster-Carr

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Shape

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Export Control Classification Number (ECCN)

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DFARS Specialty Metals

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Thermal Conductivity @ Temperature

159 BTU⋅in/(hr⋅ft²⋅°F) @ 68° F

171 BTU⋅in/(hr⋅ft²⋅°F) @ 68° F

4.5 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

194.5 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

1.265 W/(m⋅°C) @ 20° C

Dielectric Strength

Abrasive Material

Mount Type

Quick-Change Fastener

Compressive Strength

Fabrication

Form

Hardness

1,429 Products

Raw Materials

Ceramic

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

309 products

Containers, Storage, and Furniture

Crucibles

Mix and melt powders, chemicals, and metals

28 products

Fabricating and Machining

Casting Compounds

Mix and pour into molds to capture intricate detail when casting parts, linings, and prototypes

3 products

Polishing Stones

Create a finer, more polished finish on tools, molds, and dies than sanding sticks

3 products

Buffing and Polishing Compounds

Apply to your buffing wheel to improve its buildup removal

7 products

Sanding Sleeves

Use with grinders to shape, deburr, and sand edges and internal surfaces

36 products

Sandpaper

Add to sanders, sanding blocks, and other tools to create a smooth finish on work surfaces

63 products

Sanding Discs

Add to sanders, floor buffers, and other tools to smooth out workpieces and remove paint and rust

412 products

Sanding Bits

Smooth out small, recessed, and hard-to-reach areas, and also remove paint and rust

10 products

Sanding Belts

Pair with sanders and sanding sticks to smooth the surfaces of workpieces and remove paint and rust

215 products

Sanding Rolls

As the outer sanding surface wears away, new abrasive is exposed; also known as cartridge rolls

11 products

Sanding Pads

Reach into pipes, tubes, corners, and slots to smooth their surfaces and remove paint and rust

9 products

Rotary Tool Cutoff Wheels

Replace the cutoff wheel on your Dremel rotary tool

4 products

Cutoff Wheels

Install in grinders to cut through metal, concrete, and ceramics

49 products

Flap Wheels

Create a uniform finish on flat and curved surfaces without gouging them

23 products

Grinding Wheels

Add to grinders to remove material from work surfaces using abrasion

39 products

Sharpening Stones

Sharpen a variety of tools such as knives, chisels, and plane blades

1 product

Lathe Tool Inserts

Pair with lathes to add cuts and grooves to workpieces

52 products

Heating, Ventilation, and Air Conditioning

Thermal Insulation Sheets

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

54 products

Pipe Insulation

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

22 products

Fastening and Joining

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

17 products

Sealing

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

2 products