ERNiCrMo-3 Nickel Alloy Welding Wire
1. Chemical Composition
ERNiCrMo-3 (AWS A5.14) is an exceptional nickel-chromium-molybdenum alloy, crafted with meticulous precision to deliver unparalleled performance through expertly controlled elemental composition:
- Primary Elements: Nickel (Ni: 58-62%), Chromium (Cr: 20-23%), Molybdenum (Mo: 8-10%), Niobium (Nb: 3.15-4.15%)
- Impurities: Engineered with low iron (Fe ≤1.0%), sulfur (S ≤0.02%), and phosphorus (P ≤0.015%) to significantly reduce cracking risks, ensuring superior weld integrity.
2. Mechanical Properties
- Tensile Strength: ≥760 MPa .
- Yield Strength: ≥420 MPa .
- Elongation: ≥27%
- Impact Toughness: Exhibits outstanding resistance to fatigue and stress corrosion cracking, making it ideal for environments 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 to stable Ni3(Nb,Ti) phases post heat treatment at approximately 650°C, enhancing durability.
4. Key Features
- Corrosion Resistance: Demonstrates excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride, acidic, and marine settings.
- High-Temperature Stability: Provides remarkable strength and oxidation resistance up to 1800°F (982°C), ensuring reliability in demanding applications.
- Versatility: Perfectly suited for welding dissimilar metals, such as carbon steel to nickel alloys, and surface cladding, enhancing its application versatility.
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; recommended INCOFLUX 7 flux for optimal SAW performance.
- Wire Diameters: Available in a range of diameters from 0.8-3.2 mm, offered in spooled or straight rod forms for diverse applications.
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: Perfectly compatible with materials such as INCONEL 625, INCOLOY 825, 20alloy, 9% Ni steel, and dissimilar combinations like nickel alloys to stainless steel.
7. Standards & Certifications
- AWS/ASME: Fully compliant with AWS A5.14, ASME SFA-5.14, and UNS N06625 standards.
- Certifications: Proudly certified by ABS, NADCAP, and ISO 18274, meeting the highest standards required for critical industry applications.
8. Handling & Storage
- Moisture Control: To preserve its exceptional quality, ensure the product is stored in dry conditions. The copper-coated variants significantly bolster conductivity, enhancing overall performance.
- Pre-Weld Preparation: Prior to welding, meticulously clean surfaces to remove any traces of oil, rust, and moisture. Employ low heat input techniques to prevent any risk of embrittlement, ensuring a superior weld.
9. Packaging & Availability
- Packaging Options: Offered in versatile packaging solutions such as convenient spools ranging from 5 to 15 kg, or in straight rods to suit diverse user requirements.
- Lead Time: Orders are efficiently processed and typically ship within a swift timeframe of 3 to 15 days, contingent upon the quantity ordered, to meet your project timelines.
Product Summary: ERNiCrMo-3 represents a top-tier welding wire specifically engineered for use in demanding environments. It seamlessly integrates strong mechanical properties, superior corrosion resistance, and unparalleled adaptability across a wide array 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 |
Audited Supplier 
){kind=link}