描述
特点
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
应用：
典型应用包括压力容器、造船和普通钢结构。
使用说明：
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.
分类：
AWS A5.23 F9P8-EG-F3
焊接金属的典型化学成分（wt%）
| C | 锰 | Si | P | S |
| 0.08 | 1.42 | 0.33 | 0.009 | 0.005 |
焊接金属的典型机械性能
| YP N/mm2 | TS N/mm2 | EL % | IV -80ºC J |
| 550 | 650 | 23 | 55 |
尺寸和推荐电流范围 ( DC+)
| 导线直径（毫米） | 2.4 | 3.2 | 4.0 |
| 线材：每卷重量（千克） | 25 | 25 | 25 |
| 助焊剂： 每袋重量（千克） | 25 | 25 | 25 |
