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发明公开
CN109023114A 一种超高钢Q960E厚板及制造方法 无效 - 驳回

一种超高钢Q960E厚板及制造方法
摘要：
本发明公开了一种超高钢Q960E厚板，涉及超高强钢厚板生产制造领域，其化学成分及质量百分比如下：C:0.15%～0.18%，Si:0.20%～0.50%，Mn:0.80%～1.30%，P≤0.010%，S≤0.003%，Cr:0.30%～0.50%，Mo:0.40%～0.60%，Ni:0.80%～1.0%，Ti:0.008%～0.030%，Nb:0.015%～0.050%，B:0.0008%～0.0025%，其余为Fe和不可避免的杂质。采用中高碳和合金化的成分设计，并辅控制轧制和离线热处理的方法，提供一种适用于厚度90mm超高强钢厚板。
摘要（英）：

The invention discloses an ultrahigh steel Q960E thick plate, and relates to the field of ultrahigh-strength steel thick plate producing and manufacturing. The ultrahigh steel Q960E thick plate comprises chemical components including, by mass percent, 0.15%-0.18% of C, 0.20%-0.50% of Si, 0.80%-1.30% of Mn, smaller than or equal to 0.010% of P, smaller than or equal to 0.003% of S, 0.30%-0.50% of Cr, 0.40%-0.60% of Mo, 0.80%-1.0% of Ni, 0.008%-0.030% of Ti, 0.015%-0.050% of Nb, 0.0008%-0.0025% of B and the balance Fe and inevitable impurities. The medium-high carbon and alloying component design is adopted, controlled rolling and offline heat treatment methods are adopted for assistance, and the ultrahigh-strength steel thick plate with the thickness being 90 mm is provided.

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