公开(公告)号：US20130126036A1

公开(公告)日：2013-05-23

申请号：US13699190

申请日：2011-05-23

申请人： Masatoshi Aratani ,  Yoshikazu Kawabata ,  Takatoshi Okabe ,  Yukinori Iizuka ,  Hiromichi Hori ,  Gunji Makio ,  Kenichi Iwazaki

发明人： Masatoshi Aratani ,  Yoshikazu Kawabata ,  Takatoshi Okabe ,  Yukinori Iizuka ,  Hiromichi Hori ,  Gunji Makio ,  Kenichi Iwazaki

IPC分类号： F16L9/02 ,  B23K9/00

CPC分类号： F16L9/02 ,  B23K9/00 ,  B23K11/0873 ,  C21D9/08 ,  C21D9/50 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14

摘要： A base material portion of an electric resistance welded steel pipe has a composition including C at 0.25 to 0.55%, Si at 0.01 to 1.0%, Mn at 0.2 to 3.0%, Al at not more than 0.1% and N at 0.0010 to 0.0100%, with the balance being represented by Fe and inevitable impurities, and the weld defect area, which is a projected area of a weld defect in an electric resistance weld zone, is less than 40000 μm2.

摘要翻译： 电阻焊钢管的基材部分具有C为0.25〜0.55％，Si为0.01〜1.0％，Mn为0.2〜3.0％，Al为0.1％以下，N为0.0010〜0.0100％ ，余量由Fe和不可避免的杂质表示，作为电阻焊接区域的焊接缺陷的投影面积的焊接缺陷面积小于40000mum2。