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发明公开
CN101205588A 一种高铌管线钢 无效 - 撤回

一种高铌管线钢
摘要：
本发明涉及一种高铌管线钢，该高铌管线钢包括以下重量百分比的物料：碳0.02－0.04％；锰1.50－1.80％；铌0.085－0.120％；钛0.005－0.025％；氮≤0.006％；氧≤0.005％；余量为铁和不可避免的杂质。该高铌管线钢采用增大铌含量以替代价格昂贵的钼和铬，使其制作成本可大大降低，且钢的强度和韧性等特性均附合X70标准。
摘要（英）：

The invention relates to high-Nb pipeline steel, comprising the following compositions by weight percentage: 0.02 to 0.04 percent of C, 1.50 to 1.80 percent of Mn, 0.085 to 0.120 percent of Nb, 0.005 to 0.025 percent of Ti, less than or equal to 0.006 percent of N, less than or equal to 0.005 percent of O, the balance Fe and unavoidable impurities. The high-Nb pipeline steel is increased in Nb content, so as to replace the expensive Mo and Cr, thereby greatly reducing the manufacture costs, with the properties of strength, flexibility, etc. meeting the X70 standards.

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