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发明公开
CN108531833A 一种耐腐蚀高强韧耐磨贝氏体钢轨及其生产方法 有权

一种耐腐蚀高强韧耐磨贝氏体钢轨及其生产方法
摘要：
本发明提供一种耐腐蚀高强韧耐磨贝氏体钢轨及其生产方法，该钢轨成分按重量百分比计如下：C：0.10％～0.35％，Si：1.00％～2.00％，Mn：1.00％～2.00％，P：≤0.025，S：≤0.015，Cr：0.50％～1.50％，Cu：0.20％～0.60％，Ni：0.10％～0.50％，B：0.0008％～0.0025％，Nb：0.02％～0.15％，Sb：0.02％～0.30％，余量为Fe和不可避免杂质。生产方法：冶炼-精炼-连铸-连铸坯加热-初轧-万能轧制-缓冷；钢轨抗拉强度≥1390MPa，屈服强度≥1200MPa，延伸率≥12.5％，常温冲击功AKU2≥70J，耐蚀性能良好。
摘要（英）：

The invention provides a corrosion-resistant high-strength and toughness wear-resistant bainite steel rail and a production method thereof, wherein the composition of the rail is as follows: 0.10%-0.35% of C, 1.00%-2. 00% of Si, 1.00% to 2.00% of Mn, less than or equal to 0.025 of P, less than or equal to 0.015 of S, 0.50% to 1.50% of Cr, 0.20% to 0.60% of Cu, 0.10% to 0.50% of Ni, 0.0008% to 0.0025% of B, 0.02% to 0.15% of Nb, 0.02% to 0.30% of Sb and balance of Fe and inevitable impurities. The production method is as follows in order: smelting, refining, continuous casting, continuous casting billet heating, initial rolling, universal rolling, and slow cooling, rail tensile strength is greater than or equal to 1390MPa, yield strength is greater than or equal to 1200MPa, the elongation is greater than or equal to 12.5%, normal temperature impact work AKU2 is greater than or equal to 70J, and corrosion resistance is good.

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