Ni-Span-C alloy 902 Elastic alloy wire
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General introduction of Ni-Span-C alloy 902 Elastic alloy wire for wrist watch hairspring:
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Heat treatable alloy designed primarily to obtain a constant modulus of elasticity in a useful temperature range of -50 to 150°F
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Addition of titanium to the nickel-chromium-iron alloy makes it harden able by precipitation
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Ni-Span-C alloy 902 elastic alloy wire has outstanding properties of elastic modules control and high strength, combined with unusually low drift and mechanical hysteresis
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Standard product forms are round, strip, tube, pipe, and wire
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Matching standard: AMS 5225, UNS N09902, Ni-Span-C alloy 902
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Chemical composition of Ni-Span-C alloy 902:
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Ni 42.5, Fe 49.0, Cr 5.3, Ti 2.4, Al 0.5
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Applications of Elastic alloy wire for wrist watch hairspring:
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Ni-Span-C alloy 902 is used for magnetostrictive sensor, level sensor, flow sensor, precision springs, mechanical resonators, and other precision elastic components
