描述
特性：
LFC-707 is a self-shield flux-cored wire designed for high penetration welding. With good X-ray inspection, desultfuration reduce cracking in welding thick plates, and constrained joints and mediumcarbon steel. It is suitable for flat, horizontal and downhill position.
應用：
It is widely used for general fabrication and structural weldment where high deposition with good penetration and/or fast travel speed is need.
使用注意事項：
1. Use DC(-) polarity.
2 .Keep dry while in storage and delivery.
分類：
AWS A5.20 E70T-7
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 | 0.15 | 0.016 | 0.005 | 1.50 |
焊接金屬的典型機械特性
| YP N/mm2 | TS N/mm2 | EL % |
| 450 | 630 | 26 |
尺寸與建議電流範圍 ( DC+)
| 直徑 (毫米) | 2.4 | 2.8 |
| 焊接位置 | F, HF, VU, VD | F, HF, VU, VD |
| 電壓(伏特) | 26-34 | 28-38 |
| 電流(安培) | 250-400 | 280-450 |
| 伸出(mm) | 40-60 | 40-60 |
| 每卷重量(公斤) | 15 | 15 |
