Chemical Composition Base Element Fe (Iron) C (Carbon) 0.86 to 0.91 % Cr (Chromium) 0.05 % (maximum) Cu (Copper) 0.1 % (maximum) Fe (Iron) 98.1 to 98.8 % (estimate) Mn (Manganese) 0.2 to 0.4 % P (Phosphorus) 0.02 % (maximum) S (Sulfur) 0.02 % (maximum) Si (Silicon) 0.17 to 0.37 % 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 Carbon Steel Alloy Group High-carbon steel Alloy Sub-Group 1090 Country Russia Standards Body GOST (Russia) Description Carbon steel for springs. Designation KT-2 Specification Type Standard Specification GOST 9389 Specification Year 1975 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 State Committee of the Russian Federation for Standardization and Metrology Gosstandart of Russia (GOST)
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Chemical Composition