| 发明名称 |
METHOD AND USE OF STEEL FOR MAKING STEEL TUBES OR PIPES OF INCREASED ACIDIC GAS RESISTANCE |
| 摘要 |
<p>For increasing the resistance of steel pipes or tubes against acidic medium, by a combination of a heat treatment and the use of an alloyed steel, a compressure stress is built up on the side of the tubes or pipes facing the acidic medium, of up to 30 of the yield limit. (Fig. 2a).</p> |
| 申请公布号 |
CA1258571(A) |
申请公布日期 |
1989.08.22 |
| 申请号 |
CA19860511222 |
申请日期 |
1986.06.10 |
| 申请人 |
HOESCH AKTIENGESELLSCHAFT |
发明人 |
GROSS, HEINZ;KOCH, FRIEDRICH-OTTO;PEECK, ADOLF;WENNEMANN, WERNER |
| 分类号 |
C21D8/10;B23K9/23;C21D9/14;C21D9/50;C22C38/00;C22C38/54;(IPC1-7):C21D9/14 |
主分类号 |
C21D8/10 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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