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Fatigue property of the weld is superior the high intensity hot rolling original plate alloy melting galvanized steel sheet and its production manner
Fatigue property of the weld is superior the high intensity hot rolling original plate alloy melting galvanized steel sheet and its production manner
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机译：高强度热轧原板合金熔覆镀锌钢板及其焊缝的疲劳性能优越
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摘要
PURPOSE: To produce a galvannealed steel plate, using high strength hot rolled starting plate, excellent in fatigue characteristics in a weld zone by preparing a steel plate having a specific composition where respective contents of Nb, Ti, V, P, Cu, Cr, and Mo are specified. ;CONSTITUTION: A plate of a steel having a composition which consists of, by weight, 0.02-0.15% C, ≤0.5% Si, 1.0-2.5% Mn, 0.04-0.15% P, ≤0.010% S, 0.1-0.5% of Cr and/or Mo, 0.01-0.10% Al, ≤1.2% Ni, 0.6-1.6% Cu, 0.05-0.20% Ti, ≤0.08% of Nb and/or V, and the balance Fe with inevitable impurities and where P/(Ti+0.1Mn) is regulated to 0.15-0.5 and P+0.1Cu-0.33(Cr+Mo)≥0% is satisfied is prepared. By this method, the galvannealed steel plate, using high strength hot rolled starting plate, showing superior fatigue characteristics under a severe corrosive environment can be produced.;COPYRIGHT: (C)1993,JPO&Japio
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