Chemical Composition Base Element Fe (Iron) C (Carbon) 0.12 to 0.18 % Cr (Chromium) 1 to 1.3 % Fe (Iron) 96.7 to 97.9 % (estimate) Mn (Manganese) 0.8 to 1.1 % Mo (Molybdenum) 0.2 to 0.3 % P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (maximum) Si (Silicon) 0.4 % (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 5.9e8 Pa Ultimate Tensile Strength 7.5e8 to 1.05e9 Pa Elongation 11 % strain Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Chromium molybdenum steel Alloy Sub-Group 4118/ 4120/ 4121 Country Hungary Standards Body MSZ (Hungary) Description Case hardened; 63 mm; blank carburized Designation BCMo1 Specification Type Standard Specification MSZ 31 Specification Year 1985 Specification Status 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 Magyar Szabvanyugyi Testulet (MSZT) (Hungarian Standards Institution)
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Chemical Composition