| 发明名称 |
SUPER HIGH-STRENGTH FLUX CORED ARC WELDED JOINT HAVING EXCELLENT IMPACT TOUGHNESS, AND WELDING WIRE FOR MANUFACTURING SAME |
| 摘要 |
An ultra high-strength flux-cored arc welded joint having excellent impact toughness comprises: 0.01 wt % to 0.06 wt % of carbon (C), 0.1 wt % to 0.5 wt % of silicon (Si), 1.5 wt % to 3.0 wt % of manganese (Mn), 2.5 wt % to 3.5 wt % of nickel (Ni), 0.5 wt % to 1.0 wt % of molybdenum (Mo), 0.4 wt % to 1.0 wt % of copper (Cu), 0.4 wt % to 1.0 wt % of chromium (Cr), 0.01 wt % to 0.1 wt % of titanium (Ti), 0.003 wt % to 0.007 wt % of boron (B), 0.001 wt % to 0.006 wt % of nitrogen (N), 0.02 wt % (excluding 0) or less of phosphorus (P), 0.01 wt % (excluding 0) or less of sulfur (S), 0.03 wt % to 0.07 wt % of oxygen (O), and remaining iron (Fe) as well as unavoidable impurities. |
| 申请公布号 |
US2015314397(A1) |
申请公布日期 |
2015.11.05 |
| 申请号 |
US201314651853 |
申请日期 |
2013.12.24 |
| 申请人 |
POSCO |
发明人 |
JEONG Hong-Chul;LEE Jin-Woo;LEE Dong-Ryeol;HAN Il-Wook;LEE Hong-Kil |
| 分类号 |
B23K35/02;C22C38/02;C22C38/04;C22C38/42;C22C38/54;C22C38/50;C22C38/44;B23K35/30;C22C38/58 |
主分类号 |
B23K35/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An ultra high-strength flux-cored arc welded joint having excellent impact toughness, comprising:
0.01 wt % to 0.06 wt % of carbon (C), 0.1 wt % to 0.5 wt % of silicon (Si), 1.5 wt % to 3.0 wt % of manganese (Mn), 2.5 wt % to 3.5 wt % of nickel (Ni), 0.5 wt % to 1.0 wt % of molybdenum (Mo), 0.4 wt % to 1.0 wt % of copper (Cu), 0.4 wt % to 1.0 wt % of chromium (Cr), 0.01 wt % to 0.1 wt % of titanium (Ti), 0.003 wt % to 0.007 wt % of boron (B), 0.001 wt % to 0.006 wt % of nitrogen (N), 0.02 wt % (excluding 0) or less of phosphorus (P), 0.01 wt % (excluding 0) or less of sulfur (S), 0.03 wt % to 0.07 wt % of oxygen (O), and remaining iron (Fe) as well as unavoidable impurities. |
| 地址 |
Pohang-si, Kyungsangbook-do KR |
