Chemical Composition Base Element Fe (Iron) C (Carbon) 0.2 % (maximum) Cr (Chromium) 0.3 % (maximum) Fe (Iron) 96.1 to 98.9 % (estimate) Mn (Manganese) 1 to 1.6 % Nb (Niobium) 0.015 to 0.06 % Ni (Nickel) 0.7 % (maximum) P (Phosphorus) 0.04 % (maximum) S (Sulfur) 0.04 % (maximum) Si (Silicon) 0.55 % (maximum) Ti (Titanium) 0.02 to 0.2 % V (Vanadium) 0.02 to 0.2 % 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 Tabular Data Not Applicable Yield Strength 3.3e8 to 3.9e8 Pa Ultimate Tensile Strength 4.9e8 to 6.5e8 Pa Elongation 14 % strain (minimum) Other Information Material Class Ferrous Alloy Alloy Family Carbon Steel Alloy Group Low-carbon steel and HSLA steel Alloy Sub-Group 1522/1522H Country China Standards Body SAC (China) Description Sheet, strip; 2-4 mm thick; HR; ann Designation Q390B Specification Type Standard Specification GB 912 Specification Year 1989 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)
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Chemical Composition