ERNi-1 Special Weliding Wires Super Alloy Excellent Welding Process Performance For Marine Equipment
ERNi-1 is a nickel-based welding wire classified under AWS A5.14 as ERNi-1. It is primarily used for welding commercially pure nickel (UNS N02200/N02201) and offers excellent corrosion resistance in reducing and neutral environments. The wire features high nickel content (≥99.0%) with controlled levels of manganese (Mn), titanium (Ti), and iron (Fe) to enhance weldability and mechanical properties.
Key applications include chemical processing equipment, food industry machinery, and electrical components requiring high purity and thermal conductivity. ERNi-1 provides smooth arc stability, low spatter, and easy slag removal, making it suitable for GTAW (TIG) and GMAW (MIG) processes. Its weld deposits exhibit good ductility (typically ≥30% elongation) and tensile strength (~550 MPa), ensuring reliable performance in cryogenic and elevated-temperature services.
The wire complies with ISO 18274: Ni 2061 and is available in standard diameters (0.8mm–2.4mm) for precision welding operations.
| Chemical Composition Wt.% | % | Ni | Fe | Cu | C | Mn | Si | S | P | Al | Ti |
| Nominal | ≥93 | ≤1 | ≤0.25 | ≤0.15 | ≤1 | ≤0.75 | ≤0.01 | ≤0.02 | ≤1.5 | 2-3.5 |
ERNi-1 Special Welding Wires – Key Features
1. Superior Corrosion Resistance
- Exceptional performance in corrosive environments (acids, alkalis, high-temperature oxidation)
- Ideal for chemical processing, marine, and petrochemical applications
2. High-Temperature Stability
- Maintains mechanical properties up to 600°C (1112°F)
- Low risk of hot cracking or embrittlement
3. Excellent Weldability
- Smooth arc characteristics with minimal spatter
- Compatible with GTAW (TIG), GMAW (MIG), and SAW processes
4. Optimized Mechanical Properties
- Tensile strength: ≥550 MPa (80 ksi)
- Elongation: ≥30%
- Ensures durable, crack-resistant joints
5. Low Impurity Content
- Ultra-low carbon, sulfur, and phosphorus levels (<0.02%)
- Reduces porosity and improves weld purity
6. Versatile Applications
Nickel alloy fabrication (e.g., ASTM B163, B164)
Dissimilar metal joining (Ni-steel, Ni-copper)
Repair welding of cast/wrought nickel components
7. Certified Quality
- Compliant with AWS A5.14 (ERNi-1), ISO 18274: Ni 2018
- Third-party tested for chemical composition and mechanical performance
8. Customizable Formats
- Available in diameters: 0.8mm–4.0mm (0.03"–0.16")
- Spool, coil, or straight lengths (upon request)
Why Choose ERNi-1?
Designed for critical industries requiring reliability under extreme conditions, our welding wires ensure consistent penetration, minimal post-weld cleanup, and long-term structural integrity.
Typical Industries: Oil & gas, nuclear power, aerospace, and chemical processing.
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