描述
特性：
LSF-121T s designed for multi-pass groove welds. With nice bead appearance, porosity resistance and good slag removability. High welding efficiency, high toughness at low temperature can be obtained. It produces good impact property and minimum 500 N/mm² tensile strength when used with LSW-EG-F3
應用：
典型應用包括壓力容器、造船及一般鋼結構。
使用注意事項：
1. Dry the flux at 350°C for 60 minutes before use.
2. When performing first pass welding, it is recommend to use lower current to prevent cracking.
分類：
AWS A5.23 F9P8-EG-F3
焊接金屬的典型化學成分 (wt%)
| C | 錳 | Si | P | S |
| 0.08 | 1.42 | 0.33 | 0.009 | 0.005 |
焊接金屬的典型機械特性
| YP N/mm2 | TS N/mm2 | EL % | IV -80ºC J |
| 550 | 650 | 23 | 55 |
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 |
