Carbides and Carbide Materials (Hard metals)

Carbides and carbide materials include silicon carbide, tungsten carbide and titanium carbide as well as other compounds of a metal (Ti, W, Cr Zr) or metalloid (B, Si) and carbon. Carbides and carbide materials have excellent wear resistance and high hot hardness. Carbide is a carbon-containing alloy or doping of a metal or semiconductor, such as steel. There are many types of carbide materials. Examples include calcium carbide, aluminum carbide, silicon carbide and boron carbide. Calcium carbide has the appearance of grayish white lumps and has the chemical formula CaC2. Aluminum carbide is yellowish-green and has the chemical formula Al4C3. Silicon carbide is dark green to light green in color and has the chemical formula SiC. Boron carbide is dark gray in color and has the chemical formula B4C. Other carbides and carbide materials are commonly available.

Carbides and carbide materials are produced in an electric arc furnace. Calcium carbide is produced by an electric discharge through a mixture of lime and carbon at a high temperature. Silicon carbide is manufactured by the combination of silica sand and carbon at a high temperature, between 1600 °C and 2500 °C. Boron carbide is produced industrially by the carbo-thermal reduction of boron oxide in an electric furnace and can be obtained from a boron carbide powder supplier. Silicon carbide powder can have the size from 20 to 100 nanometers. Most silicon carbide is man-made for use as an abrasive and can be obtained from a silicon carbide abrasive supplier. Carbides and carbide materials are manufactured to meet most industrial specifications.

Carbides and carbide materials are used in many applications. Boron carbide is used in grit blasting nozzles, high pressure water jet cutter nozzles, scratch and wear resistant coatings, cutting tools and dies, abrasives, and neutron absorber in nuclear reactors. Silicon carbide is used in structural materials, astronomy, disc brakes, diesel particulate filters, cutting tools, and heating elements. High purity silicon carbide powder is used in the production of semiconductors. Calcium carbide is used in carbide lamps, which are still used in coal mines. Carbides and carbide materials have a different CAS number for each carbide.

• Titanium Carbide (TiC)
  Titanium carbide (TiC) materials are compounds of a titanium metal and carbon. Metal carbides are also known as hard metals. Metal carbides have high hardness and high hot hardness which makes them...
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• Cast Iron
  Cast irons include many metals having a wide variety of properties. Although cast iron is often considered a simple metal to produce and to specify, the metallurgy of cast iron is more complex than...
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• Ceramic Grade Descriptions
  Greenleaf is the industry leader in the development and manufacture of ceramic and coated ceramic inserts in ANSI standard and special geometries. Some of the most prominent include: WG-300®...
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