基本信息:
- 专利标题: 고강도 용접 강관 및 그 제조 방법
- 专利标题(英):High-strength welded steel pipe and method for producing the same
- 专利标题(中):高强度焊接钢管及其制造方法
- 申请号:KR1020127020273 申请日:2011-02-04
- 公开(公告)号:KR101456345B1 公开(公告)日:2014-11-03
- 发明人: 후지시로다이시 , 하라다꾸야 , 데라다요시오 , 사까모또신야 , 아사히히또시
- 申请人: 신닛테츠스미킨 카부시키카이샤
- 申请人地址: *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 专利权人: 신닛테츠스미킨 카부시키카이샤
- 当前专利权人: 신닛테츠스미킨 카부시키카이샤
- 当前专利权人地址: *-*, Marunouchi *-chome, Chiyoda-ku, Tokyo, Japan
- 代理人: 장수길; 성재동
- 优先权: JPJP-P-2010-022831 2010-02-04
- 国际申请: PCT/JP2011/052348 2011-02-04
- 国际公布: WO2011096510 2011-08-11
- 主分类号: C22C38/00
- IPC分类号: C22C38/00 ; B21C37/08 ; B23K9/025 ; C21D8/10
The high strength welded steel pipe is welded portion of a steel plate formed into a pipe-shaped butt, the base portion C in mass% of the steel sheet: 0.010 to 0.080%, Si: 0.01 to 0.50%, Mn: 0.50 to 2.00%, S: 0.0001 to 0.0050%, Ti: 0.003 to 0.030%, Mo: 0.05 to 1.00%, B: 0.0003 to 0.0100%, O: 0.0001 to 0.0080%, N: including 0.006 to 0.0118%, and the remaining portion made of iron and unavoidable impurities is, P: 0.050% or less, Al: 0.008%, and limited to less than, and a Ceq of 0.30 to 0.53, and the Pcm 0.10 to 0.20, [N] - [Ti] is less than 0.003 /3.4, heat welding of the steel strip the average grain diameter of γ grains is less than nine negative impact 250μm, in the nine γ mouth halitosis include bainite and bainite.
公开/授权文献:
- KR1020120099158A 고강도 용접 강관 및 그 제조 방법 公开/授权日:2012-09-06
信息查询:
EspacenetIPC结构图谱:
C | 化学;冶金 |
--C22 | 冶金(铁的冶金入C21);黑色或有色金属合金;合金或有色金属的处理 |
----C22C | 合金 |
------C22C38/00 | 铁基合金,例如合金钢 |