Range attributes C (Carbon) 0.66 to 0.74 % Cr (Chromium) 0.3 % (maximum) Cu (Copper) 0.2 % (maximum) Elongation 6 % strain (minimum) Fe (Iron) 94.8 to 96.3 % (estimate) Mn (Manganese) 0.6 to 0.9 % Ni (Nickel) 0.25 % (maximum) P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.025 % (maximum) Si (Silicon) 2.4 to 2.8 % Ultimate Tensile Strength 800 to 1670 MPa Yield Strength 1470 MPa (minimum) Discrete attributes ~Checking Status Not verified - Original build Date Last Checked Thursday, October 17, 2013 Alloy Family Alloy Steel Alloy Group Silicon steel Alloy Sub-Group Silicon steel Available forms Wrought Base Element Fe (Iron) Country Russia Material Class Ferrous Alloy Source Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006 Specification Status Active Specification Type Standard Standards Body GOST (Russia) Short text attributes Composition Note_old 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. Country* Russia Description_old Carbon steel for springs; mech props vary with treatment and size. Designation 70S3A Specification GOST 14959 Specification Status Notes Active 2005 Long text attributes 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. Description Carbon steel for springs; mech props vary with treatment and size. Hyperlink attributes Similar Alloys Click here to find similar alloys Integer attributes Specification Year 1979 Further Information Organizations State Committee of the Russian Federation for Standardization and Metrology Gosstandart of Russia (GOST)
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Range attributes

C (Carbon)

0.66 to 0.74