描述
特性：
LSF-39 is an active flux. It is designed for butt or fillet welding on sheet metal with nice bead appearance, porosity resistance and good slag forming and removing and improved toughness. prevent porosity during welding. It is recommend for single pass welding steel plate under 25 mm thick.
應用：
Typical applications include pressure vessels, H beam, pipe-mill application, shipbuilding, LPG Tank and general steel structure.
使用注意事項：
1. Dry the flux at 350℃ for 60 minutes before use
2. Not recommended to welding more than two passes.
分類：
AWS A5.17 F7A2-EM12K
焊接金屬的典型化學成分 (wt%)
| C | 錳 | Si | P | S |
| 0.09 | 1.33 | 0.6 | 0.015 | 0.010 |
焊接金屬的典型機械特性
| YP N/mm2 | TS N/mm2 | EL % | IV -20ºC J |
| 436 | 533 | 27.5 | 67 |
尺寸與建議電流範圍 ( DC+)
| 線材：直徑 (mm) | 2.4 | 3.2 | 4.0 |
| 線材：每卷重量 (kg) | 25 | 25 | 25 |
| 助焊劑: 每袋重量(公斤) | 25 | 25 | 25 |
