描述
特性：
LFC-704 is a self-shield flux-cored wire. It featuresgood slag removal and friendly to manage variant weld joints by longer sticking out. The welding for heavy machinery, large construction component is appropriate also stiffens in large building.
應用：
It is widely used for site general fabrication and structural.
使用注意事項：
1. Use DC(+) polarity.
2 .Keep dry while in storage and delivery.
分類：
AWS A5.20 E70T-4
EN EN758 T 42 Z W N 3
焊接位置：
焊接金屬的典型化學成分 (wt%)
| C | 錳 | Si | P | S | Al |
| 0.28 | 0.45 | 0.3 | 0.015 | 0.005 | 1.5 |
焊接金屬的典型機械特性
| YP N/mm² | TS N/mm² | EL % |
| 445 | 570 | 25 |
尺寸與建議電流範圍 ( DC+)
| 直徑 (mm) | 2.4 | 2.8 |
| 電壓 (伏特) | F、HF | F、HF |
| 電流 (安培) | 26-34 | 27-36 |
| 伸出 (mm) | 250-400 | 280-450 |
| 流量 (l/min) | 40-60 | 40-60 |
| 每卷重量（公斤） | 15 | 15 |
