![电阻焊钢管用钢带和电阻焊钢管以及电阻焊钢管用钢带的制造方法](/CN/2015/8/10/images/201580051415.jpg)
基本信息:
- 专利标题: 电阻焊钢管用钢带和电阻焊钢管以及电阻焊钢管用钢带的制造方法
- 专利标题(英):Steel strip for electric-resistance-welded steel pipe, electric-resistance-welded steel pipe, and process for producing steel strip for electric-resistance-welded steel pipe
- 申请号:CN201580051415.4 申请日:2015-08-06
- 公开(公告)号:CN106715744A 公开(公告)日:2017-05-24
- 发明人: 松木康浩
- 申请人: 杰富意钢铁株式会社
- 申请人地址: 日本东京都
- 专利权人: 杰富意钢铁株式会社
- 当前专利权人: 杰富意钢铁株式会社
- 当前专利权人地址: 日本东京都
- 代理机构: 北京集佳知识产权代理有限公司
- 代理人: 苗堃; 金世煜
- 优先权: 2014-195322 20140925 JP
- 国际申请: PCT/JP2015/003972 2015.08.06
- 国际公布: WO2016/047023 JA 2016.03.31
- 进入国家日期: 2017-03-23
- 主分类号: C22C38/00
- IPC分类号: C22C38/00 ; B23K11/00 ; C21D8/02 ; C22C38/16 ; C22C38/54 ; B21B1/26
摘要:
本发明提供一种具有X70级以上的强度、并且具备极其优异的耐HIC性和耐SSC性的电阻焊钢管用钢带。一种电阻焊钢管用钢带,具有如下成分组成:以质量%计,C:0.02~0.06%、Si:0.1~0.3%、Mn:0.8~1.3%、P:0.01%以下、S:0.001%以下、V:0.04~0.07%、Nb:0.04~0.07%、Ti:0.01~0.04%、Cu:0.1~0.3%、Ni:0.1~0.3%、Ca:0.001~0.005%、Al:0.01~0.07%、N:0.007%以下,剩余部分由Fe和不可避免的杂质构成,且C、Nb、V和Ti的含量满足下述(1)式,上述电阻焊钢管用钢带的铁素体面积率为90%以上。[C]‑12([Nb]/92.9+[V]/50.9+[Ti]/47.9)≤0.03%……(1)。
摘要(英):
Provided is a steel strip for electric-resistance-welded steel pipes which has a strength on the level of the X70 grade or higher and has highly excellent resistance to HIC and SSC. The steel strip for electric-resistance-welded steel pipes has a composition which contains, in terms of mass%, 0.02-0.06% C, 0.1-0.3% Si, 0.8-1.3% Mn, up to 0.01% P, up to 0.001% S, 0.04-0.07% V, 0.04-0.07% Nb, 0.01-0.04% Ti, 0.1-0.3% Cu, 0.1-0.3% Ni, 0.001-0.005% Ca, 0.01-0.07% Al, and up to 0.007% N, with the remainder comprising Fe and unavoidable impurities, the contents of C, Nb, V, and Ti satisfying the following relationship (1), the steel strip having an areal ferrite proportion of 90% or higher. [C]-12([Nb]/92.9+[V]/50.9+[Ti]/47.9)<=0.03% (1).
IPC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 |