ERNiCrMo-3 Nickel Alloy Welding Wire
Product Introduction
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a premium nickel-chromium-molybdenum alloy, meticulously formulated for unmatched performance:
- Primary Elements: Comprising Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), and Niobium (Nb: 3.15-4.15%), this blend ensures superior quality.
- Impurities: With exceptionally low iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%), it minimizes 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: Impressive tensile strength of ≥760 MPa.
- Yield Strength: Yield strength ensuring robustness, rated at ≥420 MPa.
- Elongation: Offers excellent elongation of ≥27%, adding to its flexibility.
- Impact Toughness: Demonstrates high resistance to fatigue and stress corrosion cracking, ideal for both cryogenic and high-temperature environments.
3. Physical Properties
- Density: With a density of 8.4 g/cm³, it is structured for optimal performance.
- Melting Range: Offers a wide melting range of 1290-1350°C, perfect for demanding applications.
- Structure: Displays a face-centered cubic lattice, evolving into stable Ni3(Nb,Ti) phases post heat treatment at ~650°C.
4. Key Features
- Corrosion Resistance: Provides outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in challenging environments.
- High-Temperature Stability: Retains its strength and resists oxidation even at temperatures up to 1800°F (982°C).
- Versatility: Exceptionally versatile, suitable for welding dissimilar metals like carbon steel to nickel alloys and surface cladding.
5. Welding Process Compatibility
- Methods: Fully 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 diameters from 0.8-3.2 mm, offered as spooled or straight rods.
6. Applications
- Industries: Perfect for aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment) sectors.
- Materials Welded: Ideal for welding INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar metal combinations.
7. Standards & Certifications
- AWS/ASME: Fully compliant with AWS A5.14, ASME SFA-5.14, and UNS N06625 standards.
- Certifications: Accredited by ABS, NADCAP, and ISO 18274 for use in critical industries.
8. Handling & Storage
- Moisture Control: Ensure optimal performance by storing in dry conditions. Our copper-coated variants further enhance conductivity, providing a superior edge in challenging environments.
- Pre-Weld Prep: Prioritize surface preparation by meticulously cleaning surfaces to eliminate oil, rust, and moisture. Utilize low heat input techniques to prevent embrittlement and achieve exceptional weld integrity.
9. Packaging & Availability
- Packaging: Available in versatile formats such as spools (5-15 kg) or straight rods, catering to diverse operational needs.
- Lead Time: Expedient shipping assured, typically dispatched within 3-15 days, contingent on order quantity, ensuring timely project execution.
Summary: ERNiCrMo-3 stands as a pinnacle in welding wire technology, crafted for the most demanding environments. It merges superior mechanical properties, unmatched corrosion resistance, and versatile adaptability across a broad spectrum of industries.
Our advantages
1. Technological leadership: Breakthrough advancements in proprietary formulas and state-of-the-art processes.
Exclusive alloy formula: Backed by a prestigious Dutch invention patent (patent number: 2029411), our unique blend achieves an optimal synergy of corrosion resistance (salt spray test ≥ 1000 hours) and high-temperature strength (tensile strength ≥ 790MPa). This is achieved through precise calibration of nickel chromium molybdenum ratios (Ni ≥ 58%, Cr 20-23%, Mo 8-10%), outperforming ASTM B166 standards.
Advanced process guarantee: Implementing dual metallurgical processes (VIM+ESR) coupled with nano polishing technology ensures immaculate composition and surface smoothness Ra ≤ 0.2 μm, with rigorous tolerance control ± 0.001mm, tailored to meet high-precision automated welding demands.
2. Full scenario technical barriers: Crafted to exceed the requirements of high-end manufacturing sectors.
Extreme environmental coverage: From deep-sea equipment capable of withstanding seawater corrosion to aircraft engines that resist 1000 °C high-temperature creep, our product excels in the most extreme conditions across petrochemicals, nuclear power, and new energy sectors.
Multi-functional compatibility: Designed to support welding of dissimilar metals (including nickel-based alloys, stainless steel, 9% Ni steel overlay welding). It ensures consistent, stable weld formations, reduces hot crack sensitivity by 40%, and lowers subsequent processing costs significantly.
3. Flexible production and full cycle service
Customization capability: With nearly two decades of technological expertise, we offer flexible solutions including non-standard specifications (diameter 0.6-4.0mm) and specialized coatings, delivering swift responses within a 3-day turnaround.
Dual guarantee of delivery and quality control:
Stable production: Our fully automated production line boasts a robust monthly capacity of 100 tons, with regular orders fulfilled within 15 days and an impressive on-time rate of ≥ 98%.
Quality commitment: Through 12 meticulous quality inspection processes from raw materials to final products, we maintain a defect rate of less than 0.05%, validated by ISO 9001, CE, and other esteemed certifications.
Worry-free after-sales service:
Benefit from a 24-month ultra-long warranty and a rapid 48-hour global technical response.
Our comprehensive after-sales service includes welding process package development, technical guidance, and quality traceability services, ensuring peace of mind and continuous support.
________________________________________
Optimization Explanation
1. Structured layering: Seamlessly integrate 'technological leadership' with 'unique formula technology', arranging them to emphasize the continuous advantages from research through to practical application.
2. Data quantification: Incorporate specific metrics such as patent numbers, performance parameters, and defect rates to bolster reliability and confidence.
3. Scenario-based expression: Clearly articulate the product's real-world application value in industries like petrochemicals and nuclear power, underlining the technical challenges it overcomes.
4. Service Differentiation: Elevate your experience with our refined customization capabilities and comprehensive after-sales terms. We amplify our competitiveness with a 'quick response & long-term guarantee' approach, ensuring you receive unparalleled service and peace of mind for all your needs.
Other Major Products in the Same Category: Discover the diverse range of products that complement the exceptional quality of our Inconel 625 MIG Wire. Each product is meticulously crafted to meet the highest standards and suit various applications, ensuring a superior performance that aligns with our commitment to 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 |





