ERNiCrMo-3 Nickel Alloy Welding Wire
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a superior nickel-chromium-molybdenum alloy meticulously crafted with precise elemental control to guarantee exceptional performance:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%)
- Impurities: Contains low levels of iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) to significantly reduce the risk of cracking.
2. Mechanical Properties
- Tensile Strength: Impressive tensile strength of ≥760 MPa.
- Yield Strength: Yield strength rated at ≥420 MPa.
- Elongation: Elongation capacity of ≥27%, ensuring flexibility and durability.
- Impact Toughness: Demonstrates high resistance to fatigue and stress corrosion cracking, making it ideal for cryogenic to high-temperature applications.
3. Physical Properties
- Density: A density of 8.4 g/cm³.
- Melting Range: Melting range between 1290-1350°C.
- Structure: Features a face-centered cubic lattice, transitioning to stable Ni3(Nb,Ti) phases after heat treatment around 650°C.
4. Key Features
- Corrosion Resistance: Exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride, acidic, and marine environments.
- High-Temperature Stability: Retains strength and oxidation resistance up to 1800°F (982°C).
- Versatility: Ideally suited for welding dissimilar metals (e.g., carbon steel to nickel alloys) and surface cladding.
5. Welding Process Compatibility
- Methods: Compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding.
- Shielding Gas: Utilizes argon or argon-helium mixtures for TIG/MIG; INCOFLUX 7 flux is recommended for SAW.
- Wire Diameters: Available in 0.8-3.2 mm diameters, offered as spooled or straight rods.
6. Applications
- Industries: Widely used in aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment).
- Materials Welded: Compatible with INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar combinations (e.g., nickel alloys to stainless steel).
7. Standards & Certifications
- AWS/ASME: Adheres to AWS A5.14, ASME SFA-5.14, and UNS N06625 standards.
- Certifications: Accredited with ABS, NADCAP, and ISO 18274 for demanding industries.
8. Handling & Storage
- Moisture Control: Ensure your welding wire stays in pristine condition by storing it in a dry environment. Note that our copper-coated variants are specifically designed to enhance conductivity, offering you superior performance.
- Pre-Weld Prep: Achieve impeccable welds by thoroughly cleansing surfaces from oil, rust, and moisture. Employ a low heat input to maintain weld integrity and prevent embrittlement, ensuring a flawless finish.
9. Packaging & Availability
- Packaging: Our welding wires are available in versatile packaging options, including spools ranging from 5 to 15 kg, or as straight rods, tailored to meet your specific needs.
- Lead Time: Enjoy the convenience of quick shipping! Our products typically ship within 3 to 15 days, depending on the quantity ordered, so you can keep your projects on schedule.
Summary: Discover the exceptional quality of ERNiCrMo-3, a premium welding wire engineered for the most demanding environments. It boasts impressive mechanical properties, outstanding corrosion resistance, and remarkable adaptability, making it the preferred choice 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 |