ERNiCrMo-3 Nickel Alloy Welding Wire
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a premium nickel-chromium-molybdenum alloy recognized for its meticulous elemental precision, guaranteeing exceptional performance across demanding applications:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%)
- Impurities: Minimally present iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) to significantly reduce the potential for cracking.
2. Mechanical Properties
- Tensile Strength: Exhibits strength of ≥760 MPa, ensuring durability under high stress.
- Yield Strength: Demonstrates a yield strength of ≥420 MPa, providing robust support and structural integrity.
- Elongation: Affords an elongation of ≥27%, facilitating flexibility and adaptability in diverse conditions.
- Impact Toughness: Offers remarkable resistance to fatigue and stress corrosion cracking, ideal for environments spanning from cryogenic to high temperatures.
3. Physical Properties
- Density: 8.4 g/cm³, ensuring consistent structural performance.
- Melting Range: 1290-1350°C, suitable for various high-temperature applications.
- Structure: Exhibits a face-centered cubic lattice, transitioning to stable Ni3(Nb,Ti) phases post heat treatment around 650°C, enhancing stability.
4. Key Features
- Corrosion Resistance: Provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich, acidic, and marine environments.
- High-Temperature Stability: Retains strength and oxidation resistance effectively up to 1800°F (982°C), ensuring reliability in extreme heat conditions.
- Versatility: Ideally suited for welding dissimilar metals such as carbon steel to nickel alloys, as well as surface cladding applications.
5. Welding Process Compatibility
- Methods: Perfectly compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding techniques.
- Shielding Gas: Argon or argon-helium mixtures preferred for TIG/MIG; INCOFLUX 7 flux is recommended for SAW to enhance performance.
- Wire Diameters: Available in 0.8-3.2 mm sizes, offered as spooled or straight rods for diverse usage.
6. Applications
- Industries: Widely utilized in aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment) industries.
- Materials Welded: Ideal for welding a variety of materials including INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar combinations such as nickel alloys to stainless steel.
7. Standards & Certifications
- AWS/ASME: Fully compliant with AWS A5.14, ASME SFA-5.14, and UNS N06625 standards, ensuring quality and reliability.
- Certifications: Proudly certified by ABS, NADCAP, and ISO 18274, meeting the stringent demands of critical industries.
8. Handling & Storage
- Moisture Control: Ensure optimal performance by storing in consistently dry conditions; our copper-coated variants significantly enhance conductivity for superior results.
- Pre-Weld Prep: For an immaculate weld, meticulously clean surfaces of oil, rust, and moisture. Employ low heat input to prevent embrittlement and achieve a flawless finish.
9. Packaging & Availability
- Packaging: Available in versatile packaging options of spools (5-15 kg) or straight rods, tailored to meet diverse welding needs.
- Lead Time: Efficient shipping within 3-15 days, expertly tailored to your order quantity, ensuring timely delivery for your projects.
Summary: ERNiCrMo-3 is an elite welding wire engineered for the most challenging environments. It boasts exceptional mechanical properties, unparalleled corrosion resistance, and seamless adaptability across a wide range 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 |