Chemical Composition Base Element Fe (Iron) C (Carbon) 0.65 to 0.75 % Cr (Chromium) 20 to 22.5 % Fe (Iron) 66.5 to 71.8 % (estimate) Mn (Manganese) 5.5 to 7 % Mo (Molybdenum) 0.15 % (maximum) N (Nitrogen) 0.18 to 0.28 % Ni (Nickel) 1.4 to 1.9 % P (Phosphorus) 0.045 % (maximum) S (Sulfur) 0.035 % (maximum) Si (Silicon) 0.45 to 0.85 % Composition Note Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one. Other Information Material Class Ferrous Alloy Alloy Family High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels) Alloy Group Miscellaneous or unclassified Alloy Sub-Group Miscellaneous high-alloy steel Country Spain Standards Body AENOR (Spain) Description Valve Designation X70CrMnNiN21-06 Specification Type Standard Specification UNE 36022 Specification Year 1991 Specification Status Obsolete Specification Status Notes cancelled 1998 Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Available forms Wrought Similar Alloys Click here to find similar alloys Links Organizations Asociacion Espanola de Normalizacion y Certificacion (AENOR) (Spanish Association for Standardization and Certification) (UNE)
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Chemical Composition