AWS A5.4 : E310
▶︎ Characteristics:
The weld metal of LKE-308L is a rutile electrode for welding low carbon 18Cr-8Ni stainless steel. LKE-308L contains low carbon to avoid carbide precipitation during welding.
▶︎ Applications:
It is suitable for welding of stainless steel piping in refinery, oil and gas industries, and chemical plants.
▶︎ Notes on Usage:
1. Dry the electrodes at 200-250°C for 60 minutes and keep at 100-150°C before use.
2. To make the cooling time as short as possible between 500-800°C to prevent the intergranular corrosion.
3. Clean up the slag with stainless steel brush to prevent impurity.
4. Use small heat input to reduce dilution, prevent cracking and improve impact value.
▶︎ Classification:
AWS A5.4 E308L-15
▶︎ Welding position:
▶︎ Typical chemical composition of weld metal (wt%)
| C | Mn | Si | P | S | Cr | Ni |
| 0.03 | 1.3 | 0.35 | 0.014 | 0.008 | 19.38 | 9.9 |
▶︎ Typical mechanical properties of weld metal
| TS N/mm² | EL % |
| 570 | 47 |
▶︎ Sizes and recommended current range (AC or DC+)
| Diameter (mm) | 2 | 2.6 | 3.2 | 4 | 5 | |
| Length (mm) | 250 | 300 | 350 | 350 | 350 | |
| Amps | F | 30-55 | 50-85 | 80-120 | 100-150 | 140-180 |
| V&OH | 20-50 | 45-80 | 70-110 | 90-135 | – | |
| Weight per pack(kg) | 4/5 | 4/5 | 5 | 5 | 5 | |
| Weight per carton (kg) | 20 | 20 | 20 | 20 | 20 | |
