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On-line controlled cooling method and manufacturing method for seamless steel pipes for effective grain refinement
On-line controlled cooling method and manufacturing method for seamless steel pipes for effective grain refinement
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机译：用于有效细化晶粒的无缝钢管在线控制冷却方法和制造方法
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摘要
A seamless steel tube with high strength and toughness, comprising the following chemical elements by mass: 0.1-0.25% of C, 0.1-0.5% of Si, 0.01-0.1% of Al, 0.6-2% of Mn, the balance of Fe and other unavoidable impurities, wherein C+Mn/6‰¥0.35. Also provided is a method for preparing a seamless steel tube.
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