| 发明名称 |
Steel for oil well pipe, and method for producing same |
| 摘要 |
<p>A steel for an oil well pipe has a chemical composition comprising C, Si, Mn, Al, Mo, P, S, O, N and a remainder made up by Fe and impurities, wherein the half width value (HW) of a crystal face corresponding to crystal face (211) of anαphase and the carbon content in the chemical composition as being expressed in mass% fulfill the formula: HW×C</p> |
| 申请公布号 |
AU2013278437(A1) |
申请公布日期 |
2014.11.20 |
| 申请号 |
AU20130278437 |
申请日期 |
2013.06.17 |
| 申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
OMURA, TOMOHIKO;ARAI, YUJI;KAWANO, KAORI;SAKAMOTO, AKIHIRO;OKAMURA, KAZUO;YAMAMOTO, KENJI;KONDO, KEIICHI;NAGAHASHI, KOJI;SEO, MASANAO |
| 分类号 |
C22C38/00;C21D8/10;C21D9/08;C22C38/12;C22C38/32 |
主分类号 |
C22C38/00 |
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