| 发明名称 |
HIGH-CHARACTERISTIC STEEL FOR LARGE-SIZE PARTS |
| 摘要 |
High-strength steel of which the chemical composition comprises, by weight:;0.03%≦C<0.2%;Si≦0.49%;3%<Mn≦4%;Ni≦0.9%;1%≦Cr≦5%;Mo+W/2≦1%;Cu≦0.9%;S+Se/2+Te/3<0.020%;Al≦0.1%,;the remainder being iron and impurities resulting from production. Block and plates obtained. |
| 申请公布号 |
US2015299835(A1) |
申请公布日期 |
2015.10.22 |
| 申请号 |
US201514753223 |
申请日期 |
2015.06.29 |
| 申请人 |
INDUSTEEL CREUSOT |
发明人 |
BEGUINOT Jean;NGOMO Valery |
| 分类号 |
C22C38/58;C21D9/00;C21D9/46;C22C38/46;C22C38/04;C22C38/02;C22C38/44;C21D8/02;C21D6/00 |
主分类号 |
C22C38/58 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Method for manufacturing a steel block or plate, comprising the steps of:
providing a semi-finished product having a chemical composition comprising, by weight:
0.03%≦C<0.2%Si≦0.49%3%<Mn≦4%Ni≦0.9%1%≦Cr≦5%Mo+W/2≦1%Cu≦0.9%S+Se/2+Te/3<0.020%Al≦0.1%,the remainder being iron and impurities resulting from production,
shaping said semi-product by hot plastic deformation, by forging or by rolling, to obtain a blank having a thickness greater than or equal to 20 mm and lower or equal to 1 m, quenching said blank by air cooling to obtain said steel block or plate. |
| 地址 |
Saint-Denis FR |
