描述
特点
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.
应用：
It is widely used for site general fabrication and structural.
使用说明：
1. Use DC(+) polarity.
2 .Keep dry while in storage and delivery.
分类：
AWS A5.20 E70T-4
EN EN758 T 42 Z W N 3
Welding Position:
焊接金属的典型化学成分（wt%）
| C | 锰 | Si | P | S | Al |
| 0.28 | 0.45 | 0.3 | 0.015 | 0.005 | 1.5 |
焊接金属的典型机械性能
| YP N/mm² | TS N/mm² | EL % |
| 445 | 570 | 25 |
尺寸和推荐电流范围 ( DC+)
| Diameter (mm) | 2.4 | 2.8 |
| Voltage (Volt) | F, HF | F, HF |
| Current (Amp) | 26-34 | 27-36 |
| Stick out (mm) | 250-400 | 280-450 |
| Flow rate (l/min) | 40-60 | 40-60 |
| Weight per spool (kg) | 15 | 15 |
