Chemical Composition Base Element Fe (Iron) C (Carbon) 0.85 to 0.95 % Cr (Chromium) 0.4 % (maximum) Fe (Iron) 97.1 to 98.6 % (estimate) Mn (Manganese) 0.4 to 0.7 % Mo (Molybdenum) 0.1 % (maximum) Ni (Nickel) 0.4 % (maximum) P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 0.15 to 0.35 % 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. Mechanical Properties Ultimate Tensile Strength 174000 psi (maximum) Vickers Hardness 462000 psi (maximum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group High-carbon steel Alloy Sub-Group 1090 Country United Kingdom Standards Body BSI (United Kingdom) Description Non-alloy CR narrow steel strip with t<=6 mm for springs and other special applications. Alternate Name 1.1217 Designation C90S Specification Type Standard Specification BS EN 10132-4 Specification Year 2005 Specification Status Active Specification Status Notes active 2005 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 British Standards Institution (BSI)
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Chemical Composition