| 发明名称 |
Steel bar for prestressed concrete and method for producing the same |
| 摘要 |
A METHOD OF MANUFACTURING A PC STEEL BAR HAVING A TENSILE STRENGTH OF 1,080 N/MM2 OR MORE AND EXCELLENT IN HIGHLY UNIFORM ELONGATION AND HIGH-TEMPERATURE CHARACTERISTICS AT A LOW YIELD RATIO, INCLUDES HARDENING STEEL AT 1,160°C TO 1,300°C AND THEN TEMPERING THE STEEL. THE STEEL CONTAINS 0.5 TO 0.7 WTOF C, 0.2 TO 2.0 WT%OF MN, AND SI AND AI WITHIN THE RANGE OF 2.0 WT% < SI + AI < 5.0 WT% |
| 申请公布号 |
AU2853797(A) |
申请公布日期 |
1998.02.05 |
| 申请号 |
AU19970028537 |
申请日期 |
1997.07.09 |
| 申请人 |
NKK CORPORATION;NETUREN CO., LTD. |
发明人 |
TOMOYUKI YOKOTA;TETSUO SHIRAGA;SHIGERU MIZOGUCHI;EIJI YAMASHITA;HAJIME NITTA |
| 分类号 |
C21D1/18;C21D8/06;C21D8/08;C21D9/00;C22C38/00;C22C38/02;C22C38/04;C22C38/06;C22C38/08;C22C38/12;C22C38/14;C22C38/16;C22C38/20;C22C38/22;C22C38/32;C22C38/34;C22C38/38;C22C38/44;C22C38/54 |
主分类号 |
C21D1/18 |
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