Chemical Composition Base Element Fe (Iron) C (Carbon) 0.4 % Cr (Chromium) 15 % Fe (Iron) 49.6 to 51.6 % (estimate) Mn (Manganese) 1 % Mo (Molybdenum) 2 to 4 % Nb (Niobium) 4 % Ni (Nickel) 25 % Si (Silicon) 1 % 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 Yield Strength 221 MPa Ultimate Tensile Strength 745 MPa Elongation 37 % strain Other Information Material Class Ferrous Alloy Country USA Description Annealed: 108,000 TS; 32,000 YS 37 El. For superchargers, wheels, aircraft engine components; high heat resistance. Designation GAMMA COLUMBIUM 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 Allegheny Ludlum Steel
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Chemical Composition