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发明公开
CN104785952A 一种高纯净度焊条用钢 无效 - 驳回

一种高纯净度焊条用钢
摘要：
一种高纯净度焊条用钢，其组分及重量百分比含量为：C:0.03～0.08%，Si≤0.04%，Mn：0.30～0.60%，Ni≤0.10%，Cr≤0.10%，Cu≤0.10%，B：0.001～0.003%，P≤0.010%,S≤0.006%，N≤0.005%,O≤0.003%；本发明成分简单，钢质洁净度高，匹配不同级别要批能够制造500~900MPa级别焊条，在保证强度的同时，焊缝具有优良的低温冲击韧性。
摘要（英）：

The invention discloses high-purity steel for a welding rod. The high-purity steel for the welding rod comprises, by weight, 0.03-0.08 percent of C, smaller than or equal to 0.04 percent of Si, 0.30-0.60 percent of Mn, smaller than or equal to 0.10 percent of Ni, smaller than or equal to 0.10 percent of Cr, smaller than or equal to 0.10 percent of Cu, 0.001-0.003 percent of B, smaller than or equal to 0.10 percent of P, smaller than or equal to 0.006 percent of S, smaller than or equal to 0.005 percent of N and smaller than or equal to 0.003 percent of O. The high-purity steel is simple in ingredient and high in steel quality cleanliness, different covers are matched so that welding rods with the grade of 500-900 MPa can be manufactured, and weld joints have the good low-temperature impact toughness while strength is ensured.

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