Chemical Composition Base Element Fe (Iron) C (Carbon) 0.04 to 0.1 % Cr (Chromium) 15.5 to 17.5 % Fe (Iron) 61.7 to 67.4 % (estimate) Mo (Molybdenum) 1.6 to 2 % Nb (Niobium) 1.2 % (maximum) Ni (Nickel) 15.5 to 17.5 % Balance Fe (Iron) Other elements 10xC less than or equal to Nb 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 215 MPa Ultimate Tensile Strength 530 to 690 MPa Elongation 35 % strain Other Information Material Class Ferrous Alloy Country Germany Description Austenitic. DIN X8CrNiMoNb1616; WNr. 1.4981. 215 N/mm2 YS, 530-690 N/mm2 TS, 35 El. Designation CRONIDUR 4981 Specification Type Manufacturer's Specification Specification Status Active 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 Krupp Stahl AG
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Chemical Composition