| 发明名称 |
MANUFACTURE OF WELDED STEEL PIPE WITH EXCELLENT STRESS CORROSION CRACKING RESISTANCE |
| 摘要 |
PURPOSE:To improve the stress corrosion cracking resistance of the weld zones of a large-sized welded steel pipe for transportation of sour crude oil and natural gas by quench hardening the weld zones or the whole pipe including the weld zones at a specified temp. followed by tempering. |
| 申请公布号 |
JPS53138916(A) |
申请公布日期 |
1978.12.04 |
| 申请号 |
JP19770053207 |
申请日期 |
1977.05.11 |
| 申请人 |
NIPPON KOKAN KK |
发明人 |
MATSUBARA HIROYOSHI;TANIMURA MASAYUKI;TAIRA TADAAKI;SUGA MASATAKA;KOBAYASHI YASUO |
| 分类号 |
B21C37/08;C21D1/78;C21D6/00;C21D9/08;C21D9/50;C22C38/00 |
主分类号 |
B21C37/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
