ERNiCrMo-3 Nickel Alloy Welding Wire
Product Introduction
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is a premium nickel-chromium-molybdenum alloy, meticulously crafted with precise elemental control to ensure unmatched performance and reliability.
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%)
- Impurities: Designed with low levels of iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) to significantly reduce the occurrence 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 .
- Yield Strength: ≥420 MPa .
- Elongation: ≥27%
- Impact Toughness: Exhibits exceptional resistance to fatigue and stress corrosion cracking, making it ideal for applications ranging from cryogenic to high temperatures.
3. Physical Properties
- Density: 8.4 g/cm³ .
- Melting Range: 1290-1350°C .
- Structure: Features a face-centered cubic lattice, transitioning into stable Ni3(Nb,Ti) phases post heat treatment at approximately 650°C.
4. Key Features
- Corrosion Resistance: Offers unparalleled resistance to pitting, crevice corrosion, and stress corrosion cracking, even in harsh chloride, acidic, and marine conditions.
- High-Temperature Stability: Retains outstanding strength and oxidation resistance up to 1800°F (982°C).
- Versatility: Perfectly suited for welding a variety of dissimilar metals, including carbon steel to nickel alloys, as well as surface cladding applications.
5. Welding Process Compatibility
- Methods: Seamlessly compatible with TIG (GTAW), MIG (GMAW), submerged arc (SAW), and plasma arc welding techniques.
- Shielding Gas: Utilizes argon or argon-helium mixtures for TIG/MIG welding; INCOFLUX 7 flux recommended for SAW to ensure superior weld quality.
- Wire Diameters: Available in a range of 0.8-3.2 mm, offered as either spooled or straight rods for optimal flexibility.
6. Applications
- Industries: Widely used across aerospace (engine components, exhaust systems), chemical processing (reactors, pipelines), marine (valves, seawater systems), and oil/gas (wellhead equipment) sectors.
- Materials Welded: Compatible with INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and various dissimilar metal combinations like nickel alloys to stainless steel.
7. Standards & Certifications
- AWS/ASME: Meets the rigorous standards of AWS A5.14, ASME SFA-5.14, and UNS N06625, ensuring exceptional quality and reliability.
- Certifications: Certified by ABS, NADCAP, and ISO 18274, affirming its suitability for critical industrial applications.
8. Handling & Storage
- Moisture Control: Ensure optimal performance by storing in dry conditions, where copper-coated variants further enhance conductivity and reduce moisture impact.
- Pre-Weld Prep: Achieve superior weld quality by meticulously cleaning surfaces of oil, rust, and moisture. Employ low heat input techniques to prevent embrittlement, guaranteeing the integrity of your welds.
9. Packaging & Availability
- Packaging: Available in versatile formats such as spools (5-15 kg) or straight rods, tailored to your specific welding needs.
- Lead Time: Your order typically ships within 3-15 days, contingent upon quantity, ensuring timely delivery for your projects.
Summary: ERNiCrMo-3 represents the pinnacle of welding wire technology, designed for the most demanding environments. It combines unmatched mechanical strength, superior corrosion resistance, and cross-industry adaptability.
Our advantages
1. Technological leadership: Pioneering breakthroughs with patented formulas and cutting-edge processes.
Our exclusive alloy formula, backed by a Dutch invention patent (patent number: 2029411), achieves an extraordinary balance of corrosion resistance (with salt spray tests lasting ≥ 1000 hours) and exceptional high-temperature strength (tensile strength ≥ 790MPa). This is accomplished by precisely calibrating the nickel, chromium, and molybdenum ratios (Ni ≥ 58%, Cr 20-23%, Mo 8-10%), outperforming ASTM B166 standards.
Through our advanced process guarantee, we adopt a dual metallurgical process (VIM+ESR) coupled with nano polishing technology. This ensures a pure composition of the welding wire, with surface smoothness Ra ≤ 0.2 μm, and precision tolerance control at ± 0.001mm, making it ideal for high-precision automated welding scenarios.
2. Full scenario technical barriers: Seamlessly adapting to the rigorous demands of high-end manufacturing needs.
Designed to excel in extreme environments, our product covers a vast range of applications. From resisting seawater corrosion in deep-sea equipment to withstanding 1000°C high-temperature creep in aircraft engines, it stands robust in fields like petrochemicals, nuclear power, and new energy.
Our welding wire offers multifunctional compatibility, adept at welding dissimilar metals like nickel-based alloys, stainless steel, and 9% Ni steel overlay welding. It ensures uniform and stable welds, reducing hot crack sensitivity by 40% and lowering subsequent processing costs.
3. Flexible production and comprehensive full-cycle service
Customization is at the heart of our production, with nearly 20 years of technological expertise allowing us to deliver non-standard specifications (diameter 0.6-4.0mm) and special coatings. Our agile response cycle is streamlined to 3 days.
Offering a dual guarantee of delivery and quality control:
Our stable production ensures a monthly capacity of 100 tons on a fully automated production line, delivering regular orders within 15 days with an on-time rate of ≥ 98%.
We are committed to quality, performing 12 meticulous quality inspections from raw materials to finished products, maintaining a defect rate of less than 0.05%, and achieving ISO 9001, CE, and other certifications.
Enjoy worry-free after-sales service:
Benefit from a 24-month ultra-long warranty and a prompt 48-hour global technical response.
Our team provides comprehensive welding process package development, technical guidance, and quality traceability services, ensuring peace of mind with every purchase.
________________________________________
Optimization Explanation
1. Structured layering: Integrate the segments on 'technological leadership' and 'unique formula technology' to articulate advantages from R&D to implementation, showcasing a complete value chain.
2. Data quantification: Enhance credibility with clear data points, including patent numbers and performance parameters, reinforcing our technological edge.
3. Scenario-based expression: Articulate the product's real-world benefits in industries like petrochemicals and nuclear power, emphasizing our technical prowess and market adaptability.
4. Service differentiation: Elevate your business edge by refining customized solutions and tailored after-sales terms, thereby amplifying the competitive advantage of our renowned 'quick response & long-term guarantee' service.
Explore our exceptional array of other major products within the same category, each crafted with precision to meet the exacting standards of your industry needs.
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 |





