The chemical composition analysis of S420M S460M S460ML structural steel plate, S500Q, S500QL and S500QL1, C: no more than 0.2, Si: no more than 0.8, Mn: no more than 1.7, P: no more than 0.02, S: no more than 0.01, B: no more than 0.005, Cr: no more than 1.5, Cu: no more than 0.5, Mo: no more than 0.7, Ni: no more than 2.0.
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The tensile strength of seamless steel pipe is more than 8-10 times of that of ordinary steel, and its elastic modulus is better than that of steel, with excellent creep resistance, corrosion resistance and seismic resistance; the mechanical performance of seamless steel pipe is excellent, easy to machine, etc.; the seamless steel pipe S420M S460M S460ML structural steel plate is highly elastic, reused in mechanical equipment, memoryless, deformation free, and antistatic.