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发明公开
CN1418977A 高强度高韧性锚杆钢筋合金钢及其生产方法 无效 - 撤回

高强度高韧性锚杆钢筋合金钢及其生产方法
摘要：
本发明是一种高强度高韧性锚杆钢筋合金钢及其生产方法，该钢种的为中碳低合金钢，其化学成分含有(按重量百分比)：碳0.32－0.42％，硅0.20－0.40％，锰为1.0－1.65％，铝≤0.015％，氮＜0.015％，磷＜0.045％，硫＜0.045％，铬≤0.20％，铜≤0.25％，镍＜0.20％，铌和或钛和/或钒的总量小于0.10％，余量为铁不可避免的杂质；技术关键为如何解决高强度与高伸长率之间的矛盾，采取的措施是在钢的冶炼过程中对碳、硅、锰成分进行调整，使钢种强度性能达到要求的指标，降低钢中的磷、硫杂质及其他杂质含量，使钢水洁净度进一步提高，使本钢种具有良好的塑性，满足锚杆钢筋的延伸率要求。
摘要（英）：

The present invention relates to a high-strength high-toughness anchor bar alloy steel and its production method. It is a medium-carbon low-alloy steel, and its chemical composition (wt%) contains: carbon 0.32-0.42%, silicone 0.20-0.40%, manganese 1.0-1.65%, aluminium less than or equal to 0.015%, nitrogen less than 0.015%, phosphorus less than 0.045%, sulfur less than 0.045%, chromium less than or equal to 0.20%, copper less than or equal to 0.25%, nickel les sthan 0.20%, total content of niobium and/or titanium and/or vanadium is less than 0.10% and the rest is iron and inevitable impurity.In the course of smelting steel the carbon, silicone and managanese contents are regulated, the impurity content can be reduced so as to make said steel possess food plasticity and meet the percentage elongation requirements of anchor bar.

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