ERNiCrMo-4 Welding Wire
Why Choose ERNiCrMo-4?
Superior performance in the most demanding industrial environments
Extreme Corrosion Resistance
Resists strong oxidizers, chlorides, reducing acids, and mixed media environments
Superior Mechanical Properties
105,000 psi tensile strength with 40% elongation for reliable joint performance
Multi-Process Capability
Suitable for MIG, TIG, and SAW welding processes
Proven Reliability
AWS A5.14 certified with complete traceability and quality assurance
Industry Applications
ERNiCrMo-4 welding wire is trusted across multiple industries where corrosion resistance is critical
Chemical & Petrochemical
Pressure vessels, reactors, piping systems, and heat exchangers exposed to aggressive chemicals and acids.
Oil & Gas
Subsea equipment, wellheads, pipelines, and offshore platforms in saltwater and corrosive environments.
Power Generation
High-temperature components, steam systems, and equipment requiring both strength and corrosion resistance.
Marine & Pulp/Paper
Seawater-resistant applications, bleaching equipment, and pollution control systems.
Typical Chemical Composition (%)
| Element | Content (%) |
| Ni (Nickel) | Balance |
| Mo (Molybdenum) | 15.0 - 17.0 |
| Cr (Chromium) | 14.5 - 16.5 |
| Fe (Iron) | 4.0 - 7.0 |
| W (Tungsten) | 3.0 - 4.5 |
| Co (Cobalt) | ≤ 2.5 |
| V (Vanadium) | ≤ 0.35 |
| C (Carbon) | ≤ 0.02 |
Deposited Metal Properties
The weld metal exhibits robust mechanical properties, crucial for structural integrity in high-stress applications. The Deposited Metal Properties ensure that the weld joint is as strong and reliable as the base material.
| Property | Value |
| Ultimate Tensile Strength | 100,000 psi (690 MPa) min |
| Yield Strength (0.2% Offset) | 50,000 psi (345 MPa) min |
| Elongation in 2" | 20% min |
| Charpy-V-Notch Impact | Excellent at cryogenic temperatures |
Welding Process and Operational Excellence
ERNiCrMo-4 is primarily used for welding the base metal Alloy C-276 (or its equivalent UNS N10276), and for cladding or overlay applications on steel. Our wire is optimized for the following processes:
- GTAW / TIG Welding: The most common process, typically using Straight Polarity (DCEN) and pure Argon as the Shielding Gas.
- GMAW / MIG Welding: Used for higher deposition rates, often in Cladding / Overlay applications.
- SAW (Submerged Arc Welding): Utilized for thick-section welding where high heat input is required.
The OCEAN WELDING wire ensures excellent arc stability and minimal spatter, contributing to high-quality welds and reduced rework.
about ERNiCrMo-4
FAQ
Q: What is the difference between ERNiCrMo-4 and Hastelloy C-276?
A: ERNiCrMo-4 is the AWS classification for Hastelloy C-276. They are the same material-Hastelloy is the trade name, while ERNiCrMo-4 is the AWS designation. Both refer to UNS N10276 alloy.
Q: Can ERNiCrMo-4 be used for dissimilar metal welding?
A: Yes, this alloy is specifically designed for welding nickel-chromium-molybdenum base materials to themselves, to steel, and to other nickel base alloys. It's excellent for dissimilar metal applications.
Q: What shielding gas should I use with ERNiCrMo-4 MIG wire?
A: A mixture of 75% Argon and 25% Helium is recommended for MIG welding. Pure Argon can be used but may result in reduced penetration. For TIG welding, use 100% Argon.
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