Chemical Composition Base Element Fe (Iron) C (Carbon) 0.4 to 0.5 % Cr (Chromium) 13 to 15 % Fe (Iron) 65.7 to 71.3 % (estimate) Ni (Nickel) 13 to 15 % Si (Silicon) 0.3 to 0.8 % W (Tungsten) 2 to 3 % Balance Fe (Iron) Composition Note Fe is listed as a Balance element for this material, but its % value is not listed in the specification. The value shown is a calculated one. Mechanical Properties Brinell Hardness 170 to 210 Other Information Material Class Ferrous Alloy Country USA Description 170-210 HB; For airplane valves; heat resistant. Designation SILCHROME TPA Specification Type Manufacturer's Specification Specification Status Obsolete Source Woldman's Engineering Alloys 9th ed. J. Frick Editor, ASM International 2000 Available forms Wrought Similar Alloys Click here to find similar alloys Links Organizations AL Tech Specialty Steel Corp.
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Chemical Composition