Weld Wheels
Luvata for all your welding needs.
Luvata offers weld wheels that are designed specifically with your application in mind.
Welding wheel alloys include Class I, Class II and Class III. Common weld wheels are in sizes up to 20".
- Kova® copper, nickel, silicon and chromium (CuNiSiCr)
- Copper Zirconium (CuZr)
- Copper Chrome Zirconium (CuCrZr)
- Copper Nickel Silicon (CuNiSi)
Kova® - the 'beryllium-free' alloy made of copper, nickel, silicon and chromium (CuNiSiCr).
Kova is a high-strength, beryllium-free precipitation hardening alloy with medium-high electrical and thermal conductivity.
Kova is the perfect replacement for harmful beryllium copper alloys.
Benefits:
- Easy to machine and form
- Extended use due to hardness
- High strength with moderate thermal and electrical conductivity
- Easy disposal
Applications:
- Adaptors
- Shanks
- Projection welding electrodes
- Weld wheels
Specifications:
| Alloy | Kova® NK203 is a RWMA Class III alloy |
| Chemical composition | Ni 1.8 - 3.0%; Si 0.4 - 0.8%; Cr 0.1 - 0.8%; Fe 0.15% max;. Cu balance |
| Physical, electrical and thermal properties | Density: 8.8 kg/dm3 Coefficient of linear expansion: 0.0000175 1/K Specific heat: 380 J/(kg x K) |
| Documentation | Acceptance test certificate EN-CEN/TS 13388:2008 |
Errors and omissions excepted. Values given are industry standards.
Mechanical Specifications
| Form of supply | Tensile strength [N/mm2] | 0.2% Offset yield strength [N/mm2] | Elongation AS [%] | Hardness HV |
| Adapters | 650-800 | 650-750 | 9-15 | 220-225 |
