摘要：【中文】本发明公开了抗拉强度630MPa级车轮用热轧钢板及其制造方法，主要解决现有轿车车轮用热轧钢板的抗拉强度低、制造成本高、用其制成轿车车轮后车轮疲劳性能不足的技术问题。本发明提供的热轧钢板，其化学成分重量百分比为：C：0.05％～0.07％，Si：0.10％～0.15％，Mn：1.25％～1.45％，P≤0.012％，S≤0.003％，Nb：0.025％～0.035％，Ti：0.045％～0.055％，Mg：0.0005％～0.0015％，Alt:0.02％～0.05％，N≤0.0040％，其余为Fe和不可避免的杂质，且上述元素含量须满足碳当量≤0.35％。本发明热轧钢板主要用于制作轿车轮辐。 【EN】The invention discloses a hot rolled steel plate for a wheel with 630 MPa-level tensile strength and a manufacturing method thereof, and mainly solves the technical problems that the existing hot rolled steel plate for a car wheel is low in tensile strength, high in manufacturing cost and insufficient in fatigue performance of a rear wheel of the car wheel manufactured by the hot rolled steel plate. The hot rolled steel plate provided by the invention comprises the following chemical components in percentage by weight: c: 0.05 to 0.07 percent, Si: 0.10-0.15%, Mn: 1.25 to 1.45 percent of Nb, less than or equal to 0.012 percent of P, less than or equal to 0.003 percent of S, and the weight percentage of Nb: 0.025-0.035%, Ti: 0.045% -0.055%, Mg: 0.0005 to 0.0015 percent of iron, 0.02 to 0.05 percent of Alt, less than or equal to 0.0040 percent of N, and the balance of Fe and inevitable impurities, wherein the content of the elements is required to meet the requirement that the carbon equivalent is less than or equal to 0.35 percent. The hot rolled steel plate is mainly used for manufacturing car spokes.