ERNiCrMo-3 Nickel Alloy Welding Wire
Product Introduction
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a superior nickel-chromium-molybdenum alloy meticulously crafted for exceptional performance through precise elemental control:
- 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.
-
Element |
content (wt%) |
Nickel (Ni) |
≥58.0 |
Chromium (Cr) |
20.0-23.0 |
Iron (Fe) |
≤ 5.00 |
Manganese (Mn) |
≤ 5.00 |
Silicon (Si) |
≤ 0.50 |
Carbon (C) |
≤ 0.10 |
Copper (Cu) |
≤ 0.50 |
Molybdenum (Mo) |
8.0-10.0 |
Aluminum (Al) |
≤ 0.4 |
Titanium (Ti) |
≤ 0.4 |
2. Mechanical Properties
- Tensile Strength: ≥760 MPa. This ensures robust performance under extreme conditions.
- Yield Strength: ≥420 MPa. Provides reliable resistance against deformation.
- Elongation: ≥27%. Offers flexibility and resilience.
- Impact Toughness: Exhibits high resistance to fatigue and stress corrosion cracking, making it ideal for applications ranging from cryogenic to high-temperature environments.
3. Physical Properties
- Density: 8.4 g/cm³. Ensures material integrity under various conditions.
- Melting Range: 1290-1350°C. Consistent performance within a wide thermal range.
- Structure: Features a face-centered cubic lattice, transitioning to stable Ni3(Nb,Ti) phases after heat treatment at approximately 650°C for enhanced durability.
4. Key Features
- Corrosion Resistance: Boasts excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride, acidic, and marine environments.
- High-Temperature Stability: Retains strength and oxidation resistance up to 1800°F (982°C), ensuring reliable performance at elevated temperatures.
- Versatility: Ideal for welding dissimilar metals such as carbon steel to nickel alloys and for surface cladding applications.
5. Welding Process Compatibility
- Methods: Highly compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding, offering flexibility for various industrial needs.
- Shielding Gas: Use argon or argon-helium mixtures for TIG/MIG; INCOFLUX 7 flux is recommended for SAW to optimize welding quality.
- Wire Diameters: Available in 0.8-3.2 mm sizes, offered as spooled or straight rods for tailored application requirements.
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 for its exceptional qualities.
- Materials Welded: Excellent for welding 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 it meets industry expectations.
- Certifications: Certified by ABS, NADCAP, and ISO 18274, underscoring its reliability for use in critical industries worldwide.
8. Handling & Storage
- Moisture Control: Store in dry, controlled environments to ensure optimal performance. Copper-coated variants enhance electrical conductivity, safeguarding against potential disruptions.
- Pre-Weld Prep: Ensure all surfaces are meticulously cleaned of oil, rust, and moisture. Employ low heat input techniques to prevent embrittlement, ensuring a seamless and strong weld.
9. Packaging & Availability
- Packaging: Available in versatile options like spools (5-15 kg) or straight rods, catering to diverse welding needs.
- Lead Time: Efficient shipping, typically within 3-15 days, tailored to order size, ensuring timely project completion.
Summary: ERNiCrMo-3-a superior welding wire crafted for challenging conditions, offering exceptional mechanical strength, corrosion resistance, and versatility across numerous sectors.
Our advantages
1. Technological leadership: Groundbreaking advancements in patented formulas and processes
Exclusive alloy formula: Backed by a prestigious Dutch invention patent (patent number: 2029411), it strikes an optimal balance in corrosion resistance (salt spray test ≥ 1000 hours) and high temperature strength (tensile strength ≥ 790MPa) by fine-tuning the nickel-chromium-molybdenum ratio (Ni ≥ 58%, Cr 20-23%, Mo 8-10%), outshining the ASTM B166 standard.
Advanced process guarantee: Featuring a dual metallurgical process (VIM+ESR) and cutting-edge nano polishing, it ensures the welding wire's pure composition, impeccable surface smoothness (Ra ≤ 0.2 μm), and precise tolerance control (± 0.001 mm), perfectly aligning with high-precision automated welding demands.
2. Full scenario technical barriers: Tailored for high-end manufacturing requirements
Extreme environmental coverage: From oceanic depths (seawater corrosion resistance) to aerospace engineering (withstanding 1000 °C high-temperature creep), it excels under severe conditions in sectors like petrochemicals, nuclear power, and renewable energy.
Multi-functional compatibility: Facilitates welding of dissimilar metals (e.g., nickel-based alloys with stainless steel, 9% Ni steel overlay), ensuring uniform weld formation, reducing hot crack sensitivity by 40%, and minimizing follow-up processing costs.
3. Flexible production and full-cycle service
Customization capability: Leveraging nearly two decades of expertise, we offer non-standard specifications (diameter 0.6-4.0mm) and unique coatings with a swift response time of just 3 days.
Dual guarantee of delivery and quality control:
Stable production: Advanced automation achieves a monthly capacity of 100 tons, with regular orders fulfilled in 15 days and an impressive on-time delivery rate of ≥ 98%.
Quality commitment: Upholding 12 rigorous quality inspection processes from raw material to finished product, maintaining a defect rate below 0.05%, and holding certifications such as ISO 9001 and CE.
Worry-free after-sales service:
Offering an extensive 24-month warranty and 48-hour global technical support;
Includes development of welding process packages, expert technical guidance, and comprehensive quality traceability services.
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Optimization Explanation
1. Structured layering: Integrate 'technological leadership' with 'unique formula technology', categorizing them under 'technology scene service' to highlight the comprehensive advantages from R&D to application.
2. Data quantification: Incorporate concrete metrics such as patent numbers, performance parameters, and defect rates to boost credibility.
3. Scenario-based expression: Emphasize the product's real-world applications in industries like petrochemicals and nuclear power, underlining the technical barriers it overcomes.
4. Service Differentiation: Elevate our unparalleled customization capabilities and robust after-sales terms to new heights. Fortify our competitive edge with a swift response time coupled with an extensive long-term guarantee, ensuring our clients receive only the finest service experience.
Discover our other standout products within the same category, each crafted with precision and designed to meet the highest standards of excellence.
AWS A5.4 |
ERNi-1 |
ERNiCu-7 |
ERNiCr-3 |
ERNiCrFe-5 |
ERNiCrMo-3 |
ERNiCrMo-4 |
ERNiFeCr-1 |
Tensile Strength
(N/mm2) |
514 |
541 |
671 |
651 |
819 |
729 |
602 |
Elongation
(%) |
44 |
39 |
41 |
45 |
39 |
45 |
33 |
C |
0.02 |
0.02 |
0.03 |
0.06 |
0.037 |
0.012 |
0.02 |
Mn |
0.24 |
3.21 |
3.05 |
0.51 |
0.06 |
0.5 |
0.5 |
Si |
0.34 |
0.68 |
0.12 |
0.14 |
0.11 |
0.01 |
0.11 |
P |
0.34 |
1.53 |
2.4 |
1.99 |
3.37 |
0.23 |
0.81 |
Ti |
0.34 |
1.53 |
/ |
/ |
/ |
/ |
0.81 |
S |
0.14 |
0.47 |
1.41 |
6.82 |
3.9 |
5.4 |
28.24 |
Cr |
/ |
/ |
19.86 |
14.79 |
21.55 |
15.9 |
22.61 |
Ni |
95.5 |
65.68 |
72.8 |
75.06 |
61.65 |
REM |
42.91 |
Cu |
0.01 |
REM |
0.03 |
0.03 |
/ |
/ |
/ |
Mo |
0.01 |
REM |
0.03 |
0.03 |
8.49 |
16 |
2.67 |
Nb |
/ |
|
2.4 |
1.99 |
3.37 |
/ |
|
V |
/ |
|
|
|
|
0.23 |
|
Fe |
0.14 |
0.47 |
1.41 |
6.82 |
3.9 |
5.4 |
28.24 |





