描述
特点
The weld metal of LKE-309 contains more Cr, Ni than LKE-308. The microstructure containing suitable quantity of ferrite, gives it an excellent resistance to hot cracking. It is suitable for welding of dissimilar metals, hardening alloy steel and steel with poor weldability.
应用：
It is suitable for welding of stainless steel piping in refineries and chemical plants.
使用说明：
1. Dry the electrodes at 200-250oC for 60 minutes and keep at 100-150oC before use.
2. Use lower currents for dissimilar metals welding.
分类：
AWS A5.4 E309-16
EN EN1600 E 23 12 R 1 2
JIS Z3221 D309-16
Welding position:
焊接金属的典型化学成分（wt%）
| C | 锰 | Si | Cr | 莫 | 倪 | S | W | Fe |
| 0.018 | 0.28 | 0.19 | 22.47 | 14 | 54.26 | 0.002 | 3.21 | 5.14 |
焊接金属的典型机械性能
| TS N/mm² | EL % | IV -30°C J |
| 770 | 40 | 70 |
Sizes and recommended current range (AC or DC+)
| Diameter (mm) | 2.6 | 3.2 | 4.0 | 4.8 | |
| Length (mm) | 300 | 350 | 350 | 350 | |
| 安培数 | F | 90-120 | 120-160 | 160-220 | 230-300 |
| V&OH | 70-110 | 80-120 | 110-150 | 230-300 | |
| Weight per pack(kg) | 5 | 5 | 5 | 5 | |
| Weight per carton (kg) | 20 | 20 | 20 | 20 | |
