摘要：【中文】本发明公开了一种塑性增强的抗拉强度590MPa级冷轧双相钢及其生产方法，所述冷轧双相钢的化学成分重量百分比为：C 0.06～0.07％、Si 0.3～0.6％、Mn 1.4～1.6％、Ti 0.015～0.030％、Al 0.03～0.06％、B 0.0004～0.0012％、P≤0.015％、S≤0.006％、N≤0.005％，余量为Fe和不可避免的杂质；采用钛硼复合微合金化的低碳‑低锰成分设计和低温卷取工艺，从而生产出均匀延伸率为16.5～21.0％、局部延伸率不低于10％且断后延伸率A₈₀达到27.0～31.5％的抗拉强度590MPa级冷轧双相钢，适合作为高拉延、高翻边的复杂成形汽车零件。 【EN】The invention discloses a plasticity-enhanced cold-rolled dual-phase steel with 590 MPa-grade tensile strength and a production method thereof, wherein the cold-rolled dual-phase steel comprises the following chemical components in percentage by weight: 0.06-0.07% of C, 0.3-0.6% of Si, 1.4-1.6% of Mn, 0.015-0.030% of Ti, 0.03-0.06% of Al, 0.0004-0.0012% of B, less than or equal to 0.015% of P, less than or equal to 0.006% of S, less than or equal to 0.005% of N, and the balance of Fe and inevitable impurities; low-carbon and low-manganese component design and low-manganese by titanium-boron composite microalloyingA warm coiling process is carried out, so that the produced uniform elongation percentage is 16.5-21.0%, the local elongation percentage is not less than 10%, and the elongation percentage A after breakage is obtained₈₀The 590 MPa-grade cold-rolled dual-phase steel with the tensile strength reaching 27.0-31.5% is suitable for being used as high-drawing and high-flanging complex-forming automobile parts.