05CuPCrNi steel hardness forging temperature

Q420q material is a kind of structural steel plate for bridges, and there are three quality levels Q420qD, Q420qE and Q420qF. When the Q420q plate is required to have the performance in the thickness direction, the symbols Z15, Z25, Z35 representing the performance level in the thickness direction are added after the above-mentioned grades. Namely Q420qDZ15, Q420qDZ25, Q420qDZ35, Q420qEZ15, Q420qEZ25, Q420qEZ35, Q420qFZ15, Q420qFZ25, Q420qFZ35.

sa514 gr.Q structural steel alloy element composition%C: 0.14-0.21, Si: 0.15-0.35, Mn: 0.95-1.30, P max.: 0.035, S max.: 0.035, Ni: 1.20-1.50, Cr: 1.00-1.50, Mo: 0.45-0.6.0, V: 0.03-0.08The mechanical properties in thickness (mm)T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥,%: 18

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