TOKO ENi-CI Welding Electrode
TOKO ENi-CI is a nickel-based electrode specially designed for welding all types of cast iron, including gray, malleable, and nodular cast iron. It produces a machinable weld deposit with excellent crack resistance and minimal thermal expansion.
Key Advantages
- AWS A5.15 Compliance: Certified nickel-based electrode for cast iron applications.
- Excellent Machinability: Weld deposits can be easily machined after welding.
- Crack Resistance: Minimizes cracking in cast iron welds due to matching thermal expansion.
- Versatile Application: Suitable for all types of cast iron including gray, malleable, and nodular.
- Low Heat Input: Reduces thermal stress and distortion in the base metal.
Classification & Specification
- AWS Classification: Compliant with AWS A5.15 ENi-CI standards.
- Material Compatibility: All types of cast iron - gray, malleable, nodular, and alloyed cast iron.
- Specialty: Designed specifically for cast iron repair and fabrication.
Common Applications
- Cast iron machinery repair and maintenance
- Automotive engine blocks and cylinder heads
- Pump housings and valve bodies
- Heavy equipment components
- Pipe fittings and plumbing fixtures
- Historical restoration of cast iron structures
Technical Specifications
Chemical Composition (Typical Weld Metal)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | ≥85% |
| Carbon (C) | ≤1.0% |
| Manganese (Mn) | ≤1.0% |
| Silicon (Si) | ≤0.75% |
| Iron (Fe) | ≤8.0% |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ~415 MPa (60 ksi) |
| Elongation | 10-20% |
| Hardness | 130-170 HB |
| Machinability | Excellent |
Operating Characteristics
- Polarity: DC- (direct current electrode negative) or AC.
- Preheat/Interpass Temperature: 150-315°C (300-600°F) depending on section thickness.
- Post-Weld Treatment: Slow cooling in insulating material to prevent cracking.
- Storage: Keep in dry conditions to prevent moisture pickup.
TOKO-Specific Features
- Arc Stability: TOKO electrodes provide smooth, stable arc characteristics.
- Slag Removal: Easy slag detachment improves weld efficiency.
- Weld Appearance: Produces clean, uniform welds with minimal spatter.
- Certifications: Meets international standards (e.g., ISO, EN) for quality assurance.
Technical Documentation
✅ For specific guidance and welding parameters, refer to TOKO's technical datasheets and welding procedure specifications.