ERNiCrMo-3 Nickel Alloy Welding Wire
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a premium nickel-chromium-molybdenum alloy engineered with meticulous elemental precision to ensure unmatched performance:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%)
- Impurities: Stringently controlled low iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) to significantly reduce cracking risks.
2. Mechanical Properties
- Tensile Strength: ≥760 MPa, ensuring robust structural integrity.
- Yield Strength: ≥420 MPa, guaranteeing resilience under stress.
- Elongation: ≥27%, offering excellent ductility for versatile applications.
- Impact Toughness: Exhibits formidable resistance to fatigue and stress corrosion cracking, ideal for conditions ranging from cryogenic to high-temperature environments.
3. Physical Properties
- Density: 8.4 g/cm³, providing a substantial, reliable structure.
- Melting Range: 1290-1350°C, suitable for diverse thermal conditions.
- Structure: Features a face-centered cubic lattice, transitioning to stable Ni3(Nb,Ti) phases post heat treatment at ~650°C for enhanced durability.
4. Key Features
- Corrosion Resistance: Exhibits exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking in challenging chloride, acidic, and marine environments.
- High-Temperature Stability: Retains strength and oxidation resistance effectively up to 1800°F (982°C), ensuring reliability in extreme conditions.
- Versatility: Perfectly adaptable for welding dissimilar metals (e.g., carbon steel to nickel alloys) and surface cladding, enhancing application flexibility.
5. Welding Process Compatibility
- Methods: Seamlessly compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding, offering diverse process adaptability.
- Shielding Gas: Utilizes argon or argon-helium mixtures for TIG/MIG; INCOFLUX 7 flux is recommended for SAW to ensure optimal protection.
- Wire Diameters: Available in 0.8-3.2 mm ranges, offered in both spooled and straight rods for tailored welding requirements.
6. Applications
- Industries: Extensively used in aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment).
- Materials Welded: Ideal for welding INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar combinations (e.g., nickel alloys to stainless steel).
7. Standards & Certifications
- AWS/ASME: Fully compliant with AWS A5.14, ASME SFA-5.14, and UNS N06625, ensuring adherence to stringent industry standards.
- Certifications: Proudly certified by ABS, NADCAP, and ISO 18274, meeting the demands of critical industries with confidence.
8. Handling & Storage
- Moisture Control: Ensure storage in pristine, dry conditions to maintain product integrity. The copper-coated variants are engineered to enhance electrical conductivity.
- Pre-Weld Prep: Meticulously clean surfaces to eliminate oil, rust, and moisture residues. Employ a low heat input strategy to prevent any potential embrittlement, ensuring a flawless welding process.
9. Packaging & Availability
- Packaging: Available in convenient spools ranging from 5 to 15 kg or as straight rods, tailored to meet diverse welding needs.
- Lead Time: Ships promptly within 3-15 days, contingent upon the order quantity, ensuring timely procurement for your projects.
Summary: Discover the superior ERNiCrMo-3, a high-performance welding wire, specifically engineered for challenging environments. It offers exceptional mechanical properties, outstanding corrosion resistance, and versatile applicability across a broad spectrum of industries.





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 |