ERNiCrMo-3 Nickel Alloy Welding Wire
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a superior nickel-chromium-molybdenum alloy, meticulously engineered with precise elemental control to ensure unmatched performance and reliability:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%) - each element harmoniously contributing to the alloy's exceptional properties.
- Impurities: Stringently controlled low levels of iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) dramatically reduce cracking risks, ensuring structural integrity.
2. Mechanical Properties
- Tensile Strength: ≥760 MPa - delivering robust performance in demanding conditions.
- Yield Strength: ≥420 MPa - offering reliable strength under stress.
- Elongation: ≥27% - ensuring flexibility and ductility in various applications.
- Impact Toughness: Demonstrates high resistance to fatigue and stress corrosion cracking, making it ideal for both cryogenic and high-temperature applications.
3. Physical Properties
- Density: 8.4 g/cm³ - ensuring a solid and reliable structure.
- Melting Range: 1290-1350°C - offering a wide range for effective processing.
- Structure: Features a face-centered cubic lattice, transitioning to stable Ni3(Nb,Ti) phases after heat treatment at ~650°C, enhancing its structural stability.
4. Key Features
- Corrosion Resistance: Exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in challenging chloride, acidic, and marine environments.
- High-Temperature Stability: Maintains formidable strength and oxidation resistance up to 1800°F (982°C), suitable for high-performance scenarios.
- Versatility: Perfectly tailored for welding dissimilar metals (e.g., carbon steel to nickel alloys) and efficient surface cladding, demonstrating its adaptability.
5. Welding Process Compatibility
- Methods: Fully compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding, offering flexibility across various methods.
- Shielding Gas: Utilizes argon or argon-helium mixtures for TIG/MIG; recommends INCOFLUX 7 flux for SAW to ensure optimal results.
- Wire Diameters: Available in 0.8-3.2 mm (spooled or straight rods) to meet diverse application needs.
6. Applications
- Industries: Widely used in aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment), showcasing its industry-wide adaptability.
- Materials Welded: Capable of welding INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and dissimilar combinations (e.g., nickel alloys to stainless steel), ensuring high-quality joints.
7. Standards & Certifications
- AWS/ASME: Fully compliant with AWS A5.14, ASME SFA-5.14, and UNS N06625, guaranteeing adherence to rigorous industry standards.
- Certifications: Holds prestigious certifications such as ABS, NADCAP, and ISO 18274, reinforcing its credibility in critical industries.
8. Handling & Storage
- Moisture Control: Ensure utmost protection by storing the product in optimally dry conditions to preserve its quality. The copper-coated variants offer enhanced conductivity, making them a superior choice.
- Pre-Weld Prep: Achieve perfect welds by meticulously cleaning surfaces from oil, rust, and moisture. Employ low heat input to maintain structural soundness and prevent any embrittlement.
9. Packaging & Availability
- Packaging: Conveniently available in spools (5-15 kg) or as straight rods, allowing flexibility in usage to meet diverse welding requirements.
- Lead Time: Efficiently ships within 3-15 days, tailored to order quantities, ensuring timely delivery for your project needs.
Summary: ERNiCrMo-3 stands as an elite welding wire, purposefully designed for demanding conditions. It offers exceptional mechanical strength, unparalleled corrosion resistance, and versatile adaptability across various industrial applications.





Product Description
AWS A5.4 |
ERNi-1 |
ERNiCu-7 |
ERNiCr-3 |
ERNiCrFe-5 |
ERNiCrMo-3 |
ERNiCrMo-4 |
ERNiCrMo-7 |
TS(N/mm2) |
460 |
541 |
671 |
560 |
790 |
729 |
780 |
EL(%) |
30 |
39 |
39 |
30 |
43 |
33 |
35 |
C |
0.02 |
0.02 |
0.03 |
0.03 |
0.0037 |
0.002 |
0.05 |
Mn |
0.3 |
1.7 |
3.05 |
1 |
0.03 |
0.12 |
0.6 |
Si |
0.16 |
0.44 |
0.37 |
0.04 |
0.029 |
0.07 |
0.02 |
P |
0.0012 |
0.007 |
/ |
0.004 |
0.003 |
0.003 |
0.003 |
Ti |
2.3 |
/ |
0.01 |
/ |
0.088 |
/ |
/ |
S |
0.005 |
0.008 |
/ |
0.002 |
0.001 |
0.0015 |
|
Cr |
/ |
/ |
19.86 |
15.7 |
21.95 |
15.9 |
16.7 |
Ni |
96.5 |
65.68 |
72.8 |
75.06 |
64.65 |
REM |
REM |
Cu |
/ |
REM |
0.06 |
0.03 |
0.009 |
0.008 |
/ |
Mo |
/ |
/ |
/ |
0.03 |
9.04 |
15.9 |
15.8 |
Nb |
/ |
/ |
2.4 |
2.3 |
3.61 |
/ |
/ |
V |
/ |
/ |
/ |
/ |
/ |
0.01 |
/ |
Fe |
/ |
0.7 |
0.23 |
7.9 |
0.19 |
4.12 |
2.2 |