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发明公开
CN102690998A 一种石油管线钢 无效 - 驳回

一种石油管线钢
摘要：
本发明涉及一种石油管线钢，该石油管线钢是由以下重量百分比的物料构成：碳0.02-0.04%；锰1.60-1.65%；铌0.070-0.075%；钛0.011-0.013%；铬0.22-0.27%；铝0.030-0.035%；钼0.11-0.15%；余量为铁和不可避免的杂质。该石油管线钢没有添加镍、铜和钒这三种贵重金属，使其制作成本可大大降低，且每平方英寸的屈服强度达到70000磅(X70)，符合国家规定的X70标准。
摘要（英）：

The invention relates to an oil pipeline steel. The oil pipeline steel is consisted of the following materials of, in percentage by weight, 0.02-0.04% of carbon, 1.60-1.65% of manganese, 0.070-0.075% of niobium, 0.011-0.013% of titanium, 0.22-0.27% of chromium, 0.030-0.035% of aluminium, 0.11-0.15 % of molybdenum, and the balance being iron and inevitable impurities. The oil pipeline steel greatly reduces the production cost with no addition of the three noble metals such as nickel, copper and vanadium, and the yield strength per square inch reaches to 70000 pounds (X70) which meets the X70 standard stipulated by the state.

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