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March 2011
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Carpenter Technology’s Temper Tough ultrahigh-strength steel (UHSS) is an air-melted, cobalt-free quench and tempered alloy.
 With a typical strength of 290 ksi (2000 MPa) ultimate tensile strength and a typical range of toughness between 60 and 65 ksivin, this alloy is a readily available, cost-effective alternative to cobalt-containing precipitation hardenable alloys. Its combination of high strength and high toughness may allow designers and engineers to achieve an extended cycle life where components are under high loads with constant stress of intense, repetitive motion. Temper Tough UHSS's attributes make it suitable for applications in high-demand crank cases, drivetrains, powertrains, structural members, suspensions, and industrial tooling, especially when designers are looking to cost-effectively reduce the weight of parts and/or components without sacrificing performance.
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Author
Jennifer Shuttleworth
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Copyright SAE International.
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