ERNiCrMo-3 Nickel Alloy Welding Wire
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a meticulously engineered nickel-chromium-molybdenum alloy, boasting impeccable elemental precision to deliver unrivaled high performance:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%)
- Impurities: Featuring ultra-low iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%), this composition is designed to significantly minimize cracking risks.
2. Mechanical Properties
- Tensile Strength: Impressively ≥760 MPa, ensuring robust performance under stress.
- Yield Strength: ≥420 MPa, providing formidable resistance before deformation.
- Elongation: ≥27%, offering considerable flexibility and adaptability in various applications.
- Impact Toughness: Exhibiting high resistance to fatigue and stress corrosion cracking, this wire is ideal for applications ranging from cryogenic to high temperatures.
3. Physical Properties
- Density: 8.4 g/cm³, providing a solid foundation for structural applications.
- Melting Range: 1290-1350°C, suitable for a wide array of thermal environments.
- Structure: Featuring a face-centered cubic lattice, with transformation to stable Ni3(Nb,Ti) phases after precise heat treatment around ~650°C.
4. Key Features
- Corrosion Resistance: Offers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, even in challenging chloride, acidic, and marine environments.
- High-Temperature Stability: Withstands and maintains both strength and oxidation resistance at temperatures up to 1800°F (982°C).
- Versatility: Perfectly suited for welding dissimilar metals, such as carbon steel to nickel alloys, and for surface cladding.
5. Welding Process Compatibility
- Methods: Compatible across several techniques: TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding.
- Shielding Gas: Utilizes argon or argon-helium mixtures for TIG/MIG processes; INCOFLUX 7 flux is recommended for SAW.
- Wire Diameters: Available in diameters ranging from 0.8-3.2 mm, in both spooled or straight rod forms.
6. Applications
- Industries: Widely used in aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment) sectors.
- Materials Welded: Compatible with materials like INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar combinations such as nickel alloys to stainless steel.
7. Standards & Certifications
- AWS/ASME: This product adheres to AWS A5.14, ASME SFA-5.14, and UNS N06625 standards, ensuring superior quality and reliability.
- Certifications: Certified by ABS, NADCAP, and ISO 18274, meeting the stringent requirements of critical industries.
8. Handling & Storage
- Moisture Control: Ensure your materials are preserved in optimal conditions by storing them in a dry environment. The copper-coated variants not only enhance conductivity but also provide added protection against moisture infiltration.
- Pre-Weld Prep: Begin with a thorough cleaning of all surfaces to eliminate any traces of oil, rust, and moisture, ensuring a pristine base for welding. Employ low heat input techniques to prevent metal embrittlement and maintain the integrity of your welds.
9. Packaging & Availability
- Packaging: Available in flexible packaging options such as spools ranging from 5 to 15 kilograms or straight rods, ensuring convenience and suitability for various industrial applications.
- Lead Time: Expect swift delivery with shipments typically dispatched within 3 to 15 days, contingent on order quantity, ensuring your projects proceed without delay.
Summary: The ERNiCrMo-3 is a top-tier welding wire specifically engineered for the most demanding environments. It effortlessly combines superior mechanical strength, outstanding corrosion resistance, and remarkable versatility, making it an ideal choice across a 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 |