ERNiCrMo-4 Nickel Alloy Welding Wire
Certified Compliance: Meets AWS A5.14 and ASME SFA 5.14 standards.
Critical Applications: Chemical, offshore, nuclear, and pollution control industries.
Products Description
ERNiCrMo-4 welding wire is the industry-standard nickel alloy filler metal designed for demanding welding applications requiring exceptional corrosion resistance. This AWS A5.14 compliant filler wire delivers superior performance in oxidizing and reducing media, making it the preferred choice for critical chemical processing and offshore projects worldwide.
Key Features & Benefits
Outstanding Corrosion Resistance: ERNiCrMo-4 exhibits excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in harsh chemical environments. The Charpy-V-Notch impact toughness ensures reliable performance even in low-temperature conditions where material integrity is paramount.
Versatile Welding Process Compatibility: This premium nickel alloy wire supports GTAW (TIG), GMAW (MIG), and SAW welding processes. Whether using straight polarity DCEN for precision TIG welding or employing automated welding with Automig NiCrMo-4, the material delivers consistent, high-quality welds with minimal spatter and excellent wetting characteristics.
Premium Brand Equivalents: ERNiCrMo-4 is equivalent to leading industry standards including Techalloy 276 from Lincoln Electric, Exaton Ni56 from ESAB, and Inco-Weld C-276. These equivalent grades ensure seamless integration into existing welding specifications and procurement 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.
FAQ
Q1: What is the main difference between ERNiCrMo-4 and ERNiCrMo-3?
A1: ERNiCrMo-4 (Alloy C-276) contains significantly higher Molybdenum and Tungsten, giving it superior resistance to a wider range of aggressive chemical environments, particularly reducing acids. ERNiCrMo-3 (Alloy 625) is primarily used for high-temperature strength and general corrosion resistance, but C-276 is the choice for the most extreme chemical applications.
Q2: Is ERNiCrMo-4 suitable for welding Titanium or Zirconium?
A2: While ERNiCrMo-4 is excellent for joining nickel alloys and for cladding steel, it is not typically used for welding reactive metals like Titanium or Zirconium. Specialized filler metals are required for those materials.
Q3: What are the recommended welding parameters for TIG welding ERNiCrMo-4?
A3: TIG welding of ERNiCrMo-4 requires low heat input to prevent hot cracking. Use Straight Polarity (DCEN), a sharp tungsten electrode, and maintain a tight arc length. Specific parameters depend on the wire diameter, which can be found in the ERNiCrMo-4 data sheet PDF available on our site.
Q4: Does OCEAN WELDING provide the Material Test Certificate (MTC) for this wire?
A4: Yes, all OCEAN WELDING products, including ERNiCrMo-4, are supplied with a full Material Test Certificate (MTC) to ensure compliance with AWS A5.14 and ASME SFA 5.14 standards.
Q5: Where is ERNiCrMo-4 most commonly used in the Chemical Processing industry?
A5: It is essential for components exposed to wet chlorine gas, hypochlorite, chlorine dioxide, and other highly corrosive oxidizers, making it a staple in the Chemical Processing industry.
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