Manufacturing method of 800Mpa-grade high-elongation medium-thickness steel plate
The invention discloses a manufacturing method of an 800Mpa-grade high-elongation medium-thickness steel plate. The steel comprises the following chemical components in percentage by mass: 0.12-0.20% of C, 0.10-0.50% of Si, 1.10-1.70% of Mn, less than or equal to 0.025% of P, less than or equal to 0...
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| creator | FENG ZAN GAO HAILIANG TUO CHENDE ZHOU GUANGJIE LIU QIN KANG JIAYUN WANG ZHEN SHI SHUHUA OUYANG FAN |
| description | The invention discloses a manufacturing method of an 800Mpa-grade high-elongation medium-thickness steel plate. The steel comprises the following chemical components in percentage by mass: 0.12-0.20% of C, 0.10-0.50% of Si, 1.10-1.70% of Mn, less than or equal to 0.025% of P, less than or equal to 0.010% of S, less than or equal to 0.030% of Nb, 0.2-0.5% of V, 0.01-0.02% of Ti, less than or equal to 0.30% of Cu, 0.10-0.50% of Ni, 0.15-0.50% of Mo, 0.020-0.060% of Alt, 0.0008-0.0015% of B and the balance of Fe and inevitable impurities. Medium carbon microalloying component design is adopted, a slab is formed through continuous casting, and through the controlled rolling and cooling process and the follow-up heat treatment process, the strength level can reach 800 Mpa, the ductility is larger than or equal to 30%, the impact at the temperature of-40 DEG C is larger than or equal to 150 J, and the Z-direction tensile section shrinkage rate is larger than or equal to 55%. The steel plate is excellent in performa |
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The steel comprises the following chemical components in percentage by mass: 0.12-0.20% of C, 0.10-0.50% of Si, 1.10-1.70% of Mn, less than or equal to 0.025% of P, less than or equal to 0.010% of S, less than or equal to 0.030% of Nb, 0.2-0.5% of V, 0.01-0.02% of Ti, less than or equal to 0.30% of Cu, 0.10-0.50% of Ni, 0.15-0.50% of Mo, 0.020-0.060% of Alt, 0.0008-0.0015% of B and the balance of Fe and inevitable impurities. Medium carbon microalloying component design is adopted, a slab is formed through continuous casting, and through the controlled rolling and cooling process and the follow-up heat treatment process, the strength level can reach 800 Mpa, the ductility is larger than or equal to 30%, the impact at the temperature of-40 DEG C is larger than or equal to 150 J, and the Z-direction tensile section shrinkage rate is larger than or equal to 55%. 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The steel comprises the following chemical components in percentage by mass: 0.12-0.20% of C, 0.10-0.50% of Si, 1.10-1.70% of Mn, less than or equal to 0.025% of P, less than or equal to 0.010% of S, less than or equal to 0.030% of Nb, 0.2-0.5% of V, 0.01-0.02% of Ti, less than or equal to 0.30% of Cu, 0.10-0.50% of Ni, 0.15-0.50% of Mo, 0.020-0.060% of Alt, 0.0008-0.0015% of B and the balance of Fe and inevitable impurities. Medium carbon microalloying component design is adopted, a slab is formed through continuous casting, and through the controlled rolling and cooling process and the follow-up heat treatment process, the strength level can reach 800 Mpa, the ductility is larger than or equal to 30%, the impact at the temperature of-40 DEG C is larger than or equal to 150 J, and the Z-direction tensile section shrinkage rate is larger than or equal to 55%. 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The steel comprises the following chemical components in percentage by mass: 0.12-0.20% of C, 0.10-0.50% of Si, 1.10-1.70% of Mn, less than or equal to 0.025% of P, less than or equal to 0.010% of S, less than or equal to 0.030% of Nb, 0.2-0.5% of V, 0.01-0.02% of Ti, less than or equal to 0.30% of Cu, 0.10-0.50% of Ni, 0.15-0.50% of Mo, 0.020-0.060% of Alt, 0.0008-0.0015% of B and the balance of Fe and inevitable impurities. Medium carbon microalloying component design is adopted, a slab is formed through continuous casting, and through the controlled rolling and cooling process and the follow-up heat treatment process, the strength level can reach 800 Mpa, the ductility is larger than or equal to 30%, the impact at the temperature of-40 DEG C is larger than or equal to 150 J, and the Z-direction tensile section shrinkage rate is larger than or equal to 55%. The steel plate is excellent in performa</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Manufacturing method of 800Mpa-grade high-elongation medium-thickness steel plate |
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