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) 0.045 % (maximum) S (Sulfur) 0.045 % (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 8.15e6 lbf/ft^2 (minimum) Ultimate Tensile Strength 1.02e7 to 1.36e7 lbf/ft^2 Elongation 19 % 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 Plate <=16 mm thick; HR Designation Q390A Specification Type Standard Specification GB/T 1591 Specification Year 1994 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