The National Critical Materials Act of 1984 Hearings Before the Subcommittee O
The National Critical Materials Act of 1984 Hearings Before the Subcommittee O
Aviation United States Congress House Committee On Scien
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Chromium is important and enjoys a diversity of uses because of its properties of hardenability, strength, resistance to corrosion, oxidation, and wear. It is used to produce stainless, full- alloy, and high-strength low-alloy steels, high-purity ferrochro- mium, and electrolji^ic chromium steel. These materials in turn are used in the production of tanks, ships, military hospital equipment, military aircraft, naval nuclear-propulsion systems, B-IB landing gear, and many other types of industri...al equipment. Cobalt imparts the properties of increased heat resistance, wear resistance, strength, and magnetization to other materials. It is used in the production of superalloys, mainly for industrial and air- craft gas turbine engines; in magnetic materials for various electri- cal applications; and in paints and ceramics as decolorizers, dryers, pigments, and oxidizers. Cobalt is also used in cemented carbides, containing 10 to 15 percent cobalt, which are used in the manufac- ture of cutting tools.
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