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发明公开
CN104561813A 一种中碳硅锰系高耐磨空冷钢 有权

一种中碳硅锰系高耐磨空冷钢
摘要：
本发明公开了一种中碳硅锰系高耐磨空冷钢，其各组分及其质量百分比如下：C 0.35％～0.45％、Si 1.51％～2.18％、Mn 1.52％～1.99％、Cr 1.13％～1.62％、Mo 0.15％～0.29％；此外还含Al 0.02％～0.07％、Nb 0.025％～0.10％，且须满足0.05％≤Nb+Al≤0.15％；余量为铁和其他不可避免的杂质。所述的高耐磨空冷钢热加工成型后采用奥氏体化后空冷处理并进行回火处理，可得到高的强度性能、较高的韧性和优良的耐磨性能指标，同时可免除淬火处理，减少了变形，防止开裂，节约了成本和资源。
摘要（英）：

The invention discloses high-abrasion-resistance air-cooled medium carbon Si-Mn system steel. The high-abrasion-resistance air-cooled medium carbon Si-Mn system steel comprises the following components in percentage by mass: 0.35-0.45 percent of C, 1.51-2.18 percent of Si, 1.52-1.99 percent of Mn, 1.13-1.62 percent of Cr, 0.15-0.29 percent of Mo, 0.02-0.07 percent of Al, 0.025-0.10 percent of Nb and the balance of Fe and other inevitable impurities, wherein the total content of Nb and Al is more than or equal to 0.05 percent and is less than or equal to 0.15 percent. After being thermally formed, the high-abrasion-resistance air-cooled steel is austenitized, air-cooled and tempered, so that high strength performance, higher toughness and excellent abrasion resistance performance index can be obtained; meanwhile, quenching treatment can be eliminated, deformation is reduced, cracking is prevented, the cost is reduced, and resources are saved.

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