Chemical Composition Base Element Fe (Iron) B (Boron) 0.005 % (maximum) C (Carbon) 0.08 % (maximum) Cr (Chromium) 2 % (maximum) Cu (Copper) 1.5 % (maximum) Fe (Iron) 91 to 99.7 % (estimate) Mn (Manganese) 0.3 to 1.3 % Mo (Molybdenum) 1 % (maximum) N (Nitrogen) 0.015 % (maximum) Nb (Niobium) 0.06 % (maximum) Ni (Nickel) 2 % (maximum) P (Phosphorus) 0.02 % (maximum) S (Sulfur) 0.1 % (maximum) Si (Silicon) 0.5 % (maximum) Ti (Titanium) 0.2 % (maximum) V (Vanadium) 0.2 % (maximum) 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 Yield Strength 1.29e7 lbf/ft^2 Ultimate Tensile Strength 1.5e7 to 1.86e7 lbf/ft^2 Elongation 15 % strain Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Nickel chromium molybdenum steel Alloy Sub-Group Miscellaneous nickel chromium molybdenum steel Country France Standards Body AFNOR (France) Description t<50 mm; QT Designation S620-Q-I-K4 Specification Type Standard Specification AFNOR NF A36-204 Specification Year 1992 Specification Status Active Specification Status Notes withdrawn Source Worldwide Guide to Equivalent Irons and Steels, 5th ed.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 Association Francaise de Normalisation (AFNOR) (French Association for Standardization)
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Chemical Composition

Base Element

Fe (Iron)