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AWS A5.15
ISO 1071 : E Ni-CI / E Ni
DIN 8573 : E Ni BG 12
Use
Basic electrode with graphite forming a pure nickel weld metal.
Recommended for “cold” welding of grey cast iron and crack repair.
Provides uniform deposit, easy machinability.
Suitable for repair of engine blocks, gearboxes, pumps and valve housings.
Used in automotive workshops, railway, gas, chemical and oil industries, boiler houses and other applications.
Suitable for repair of various cast iron components.
Grey, malleable and high-strength cast iron:
| Standard | Materials |
| ASTM | A48 Class 25B – A48 Class 60B |
| DIN | GG-15 – GG-40 |
| NFA | FLG 150 – FLG 400 |
| Rm (MPa) | Hardness |
| >300 | Approx. 180 HB |
| C | Si | Fe | Ni |
| 1.0 | <1.2 | <2.0 | >95 |
| Diameter (mm) | 2.5x350 | 3.2x350 | 4.0x350 |
| Electrodes per pack | 255 | 156 | 100 |
| Packs per carton | 4 | 4 | 4 |
| Pack weight (kg) | 5 | 5 | 5 |
| Electrode (mm) | Current (A) |
| 2.5 | 80 |
| 3.2 | 120 |
| 4.0 | 150 |
Interpass temperature must not exceed 70°C to reduce cracking risk.
Use short weld beads and hammer peen before next layer (especially important for rigid parts).
Weld only clean surfaces without oil residues.
