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发明授权
CN108265223B 优质碳素结构钢材料及其生产工艺 有权

优质碳素结构钢材料及其生产工艺
摘要：
本发明公开了一种优质碳素结构钢材料及其生产工艺。该优质碳素结构钢材料由如下元素组成：C：0.58‑0.61%；Si：0.22‑0.27%；Mn：0.83‑0.86%；P：≤0.025%；S：≤0.020%；Cr≤0.09%；Al：0.005‑0.030%；Cu：≤0.025%；B：0.002‑0.003%；Ti：0.009‑0.015；Nb：0.015‑0.019；余量为Fe。本发明的有益效果为：该优质碳素结构钢材料具有较高的强度和硬度。
摘要（英）：

The invention discloses a high-quality carbon structural steel material and a production technology thereof. The high-quality carbon structural steel material comprises the following elements which include 0.58%-0.61% of C, 0.22%-0.27% of Si, 0.83%-0.86% of Mn, smaller than or equal to 0.025% of P, smaller than or equal to 0.020% of S, smaller than or equal to 0.09% of Cr, 0.005%-0.030% of Al, smaller than or equal to 0.025% of Cu, 0.002%-0.003% of B, 0.009%-0.015% of Ti, 0.015%-0.019% of Nb and the balance Fe. The high-quality carbon structural steel material and the production technology thereof have the beneficial effects that the high-quality carbon structural steel material has high strength and hardness.

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