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发明公开
CN103789674A 一种海洋钻井平台用钢 无效 - 撤回

一种海洋钻井平台用钢
摘要：
本发明公开了一种海洋钻井平台用钢，所述钢的化学成分以重量百分数计为：C：0.12-0.15％，Si：0.40-0.60％，Mn：0.60-0.80％，Cr：2.00-2.20％，Al：0.10-0.30％，Mo：0.50-0.70％，P≤0.015％，S≤0.010％，Cu：0.20-0.40％，Ni：1.20-1.40％，Ti：0.025-0.045％，[N]≤0.030％，[O]≤0.0025％，余为Fe和不可避免的杂质。
摘要（英）：

The invention discloses steel for a marine drilling platform. The steel comprises the following chemical components in percentage by weight: 0.12-0.15 percent of C, 0.40-0.60 percent of Si, 0.60-0.80 percent of Mn, 2.00-2.20 percent of Cr, 0.10-0.30 percent of Al, 0.50-0.70 percent of Mo, less than or equal to 0.015 percent of P, less than or equal to 0.010 percent of S, 0.20-0.40 percent of Cu, 1.20-1.40 percent of Ni, 0.025-0.045 percent of Ti, less than or equal to 0.030 percent of [N], less than or equal to 0.0025 percent of [O], and the balance of Fe and inevitable impurities.

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