Chemical Composition Base Element Fe (Iron) B (Boron) 0.0008 to 0.005 % C (Carbon) 0.27 to 0.33 % Cr (Chromium) 0.15 to 0.25 % Fe (Iron) 97.3 to 98.4 % (estimate) Mn (Manganese) 1.1 to 1.4 % Mo (Molybdenum) 0.1 % (maximum) Ni (Nickel) 0.2 % (maximum) P (Phosphorus) 0.025 % (maximum) S (Sulfur) 0.02 % (maximum) Si (Silicon) 0.1 to 0.4 % 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 450 MPa Ultimate Tensile Strength 620 MPa Elongation 14 % strain Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Miscellaneous or unclassified Alloy Sub-Group Boron steel Country France Standards Body AFNOR (France) Description HR; strip; CR; t<1000 mm Designation 30MnB5RR Specification Type Standard Specification AFNOR NF A36-102 Specification Year 1993 Specification Status Active Specification Status Notes active 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