ERNiCrMo-3 Nickel Alloy Welding Wire: Your Gateway to Superior High-Temperature Welding
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a meticulously engineered nickel-chromium-molybdenum alloy, expertly crafted with precision-controlled elements to guarantee superior performance in demanding applications:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%) - a powerful combination for excellence.
- Impurities: Ultra-low levels of iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) to significantly minimize the risk of cracking and ensure durability.
2. Mechanical Properties
- Tensile Strength: ≥760 MPa – Strong and Reliable.
- Yield Strength: ≥420 MPa – Enduring Performance.
- Elongation: ≥27% – Exceptional Flexibility.
- Impact Toughness: Remarkably high resistance to fatigue and stress corrosion, suitable for a spectrum of temperatures from cryogenic to extreme heat applications.
3. Physical Properties
- Density: 8.4 g/cm³ – Perfectly Balanced.
- Melting Range: 1290-1350°C – Withstands Intense Heat.
- Structure: Featuring a face-centered cubic lattice, this alloy transitions to stable Ni3(Nb,Ti) phases post heat treatment at approximately 650°C, enhancing its structural integrity.
4. Key Features
- Corrosion Resistance: Unmatched resistance to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for harsh chloride, acidic, and marine environments.
- High-Temperature Stability: Retains formidable strength and oxidation resistance up to 1800°F (982°C), ensuring reliable performance in high-temperature settings.
- Versatility: Exceptionally versatile for welding dissimilar metals, such as carbon steel to nickel alloys, and is perfect for surface cladding applications.
5. Welding Process Compatibility
- Methods: Seamlessly compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding, offering you flexibility and precision.
- Shielding Gas: Utilize argon or argon-helium mixtures for TIG/MIG; INCOFLUX 7 flux is recommended for SAW to achieve optimal results.
- Wire Diameters: Available in a range of 0.8-3.2 mm, whether spooled or straight rods, to suit diverse welding needs.
6. Applications
- Industries: Widely utilized across aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment) sectors for superior results.
- Materials Welded: Compatible with INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar metal 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 reliability and quality.
- Certifications: Proudly certified by ABS, NADCAP, and ISO 18274, meeting stringent requirements of critical industries.
8. Handling & Storage
- Moisture Control: Ensure your welding materials are stored in pristine, dry conditions for optimal performance; copper-coated variants are designed to significantly enhance conductivity, elevating your welding results.
- Pre-Weld Prep: Before welding, meticulously clean surfaces to remove oil, rust, and moisture, ensuring a perfect bond. Use low heat input to maintain the integrity of the material and prevent embrittlement.
9. Packaging & Availability
- Packaging: Available in convenient spools ranging from 5 to 15 kg or as straight rods to suit your specific welding needs.
- Lead Time: We pride ourselves on swift delivery, with shipping typically completed within 3 to 15 days, based on order quantity.
Summary: The ERNiCrMo-3 Nickel Alloy Wire is your go-to solution for high-temperature welding demands, offering exceptional mechanical strength, outstanding corrosion resistance, and versatile application across diverse 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 |