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发明公开
CN103103448A 一种低合金高强韧性耐磨钢板 无效 - 撤回

一种低合金高强韧性耐磨钢板
摘要：
本发明涉及一种低合金高强韧性耐磨钢板，其特征是：含有下列质量百分比的化学成分：碳（C）0.10～0.21%，硅（Si）0.20～0.70%，锰（Mn）1.00～1.60%，铌（Nb）0.01～0.03%，钛（Ti）0.01～0.05%，硼（B）0.0005～0.004%，酸溶铝（Als）0.010～0.040%，磷（P）≤0.025%，硫（S）≤0.010%，铬（Cr）0.00或0.20～0.50%，钼（Mo）0.00或0.10～0.30%，余量为铁（Fe）。其比起现有同级别钢种具有更多的优势：布氏硬度425～465HB，抗拉强度1380～1460MPa，-20℃低温冲击功50J以上，90°冷弯合格，钢板纯净度高，韧性好，硬度高，冷弯性、耐磨性和焊接性更好，适用于大型工程机械、煤炭综采等诸如矿用车、振动放矿、刮板机、挖掘机等设备经受磨损的部位。
摘要（英）：

The invention relates to a low-alloy high-strength-toughness wear-resistant steel plate. The low-alloy high-strength-toughness wear-resistant steel plate is characterized by comprising the following chemical components in percentage by weight: 0.10-0.21% of C, 0.20-0.70% of Si, 1.00-1.60% of Mn, 0.01-0.03% of Nb, 0.01-0.05% of Ti, 0.0005-0.004% of B, 0.010-0.040% of Als, no more than 0.025% of P, no more than 0.010% of S, 0.00 or 0.20-0.50% of Cr, 0.00-0.10-0.30% of Mo, and the balance of Fe. Compared with the existing equal-level steel, the low-alloy high-strength-toughness wear-resistant steel plate has more advantages that the brinell hardness is 425-465HB, the tensile strength is 1380-1460MPa, low-temperature impact power can achieve more than 50J at minus 2 DEG C, the 90-degree cold bending is qualified, the steel plate is high in purity, good in toughness, high in hardness, better in cold bending property, wear resistance and weldability, and applicable to abrading parts of large engineering machinery, coal fully-mechanized mining equipment such as a mining truck, a stope vibratory ore-drawing device, a scraper conveyor, excavator and the like.

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