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发明公开
CN103866183A 一种高强度叉车门架用槽钢及其制备方法 无效 - 驳回

一种高强度叉车门架用槽钢及其制备方法
摘要：
本发明公开了一种高强度叉车门架用槽钢及其制备方法，所述高强度叉车门架用槽钢的化学成分的重量百分数为：C0.14～0.20%、Si0.30～0.50%、Mn1.35～1.55%、P≤0.030%、S≤0.020%、V0.090～0.12%，其余为铁和微量杂质。本发明主要通过钒氮微合金化工艺，结合控制加热和轧后控冷实现高强度叉车门架用槽钢产品生产，生产得到的槽钢力学性能良好，屈服强度大于480MPa，抗拉强度大于635MPa，HB硬度大于190。
摘要（英）：

The invention discloses channel steel used in a high-strength forklift gantry and a preparation method of the channel steel. The channel steel used in the high-strength forklift gantry comprises the following chemical components in percentage by weight: 0.14-0.20% of C, 0.30-0.50% of Si, 1.35-1.55% of Mn, less than or equal to 0.030% of P, less than or equal to 0.020% of S, 0.090-0.12% of V and the balance of iron and microimpurities. A channel steel product used in the high-strength forklift gantry is produced by using a vanadium-nitrogen microalloying process in combination with controlled heating and after-rolling cooling control, the produced channel steel is good in mechanical property, the yield strength is greater than 480MPa, the tensile strength is greater than 635MPa, and the HB hardness is greater than 190.

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