Chemical Composition Base Element Fe (Iron) B (Boron) 0.0005 to 0.0035 % C (Carbon) 0.37 to 0.44 % Cr (Chromium) 0.3 % (maximum) Cu (Copper) 0.3 % (maximum) Fe (Iron) 96.7 to 98.4 % (estimate) Mn (Manganese) 1.1 to 1.4 % Mo (Molybdenum) 0.15 % (maximum) Ni (Nickel) 0.3 % (maximum) P (Phosphorus) 0.035 % (maximum) S (Sulfur) 0.035 % (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. Mechanical Properties Yield Strength 7.85e8 Pa (minimum) Ultimate Tensile Strength 9.8e8 Pa (minimum) Elongation 10 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Alloy Steel Alloy Group Miscellaneous or unclassified Alloy Sub-Group Boron steel Country China Standards Body SAC (China) Description Seamless tube; QT Designation 40MnB Specification Type Standard Specification GB/T 8162 Specification Year 1999 Specification Status Active Specification Status Notes Active in 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 China State Bureau of Quality and Technical Supervision (CSBTS) (GB/JB/YB)
No warranty is given for the accuracy of these data Copyright © 2024 ASM International®

Chemical Composition