ERNiFeCr-1 Welding Wire (UNS N08065) – Nickel-Iron-Chromium Alloy Filler Metal for Power Generation and Nuclear Applications
Product Description
ERNiFeCr-1 is a nickel-iron-chromium alloy welding wire designed for joining alloys of similar composition, such as Inconel® 600 and Inconel® 690, and for dissimilar welding between nickel alloys and stainless or low-alloy steels. It is particularly valued for its excellent resistance to stress corrosion cracking, thermal fatigue, and oxidation at elevated temperatures.
Commonly used in nuclear power generation, chemical processing, and heat exchanger fabrication, this wire ensures structural integrity under high-stress environments. It is suitable for both TIG (GTAW) and MIG (GMAW) welding processes.
Key Features
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Excellent resistance to stress corrosion cracking, oxidation, and thermal fatigue
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High metallurgical compatibility with Inconel® 600, 690, and dissimilar base metals
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Stable arc, low spatter, and smooth bead appearance in TIG and MIG welding
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Suitable for high-pressure steam environments and nuclear reactor components
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High mechanical strength and metallurgical stability at elevated temperatures
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Conforms to AWS A5.14 ERNiFeCr-1 and UNS N08065
Common Names / Designations
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AWS: ERNiFeCr-1
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UNS: N08065
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Equivalent Alloys: Inconel® 600/690 welding wire
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Other Names: Nickel Iron Chromium welding filler, Alloy 690 welding wire
Typical Applications
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Welding Inconel® 600 and 690 components
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Nuclear steam generator tubing and weld overlay
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Pressure vessels and boiler components
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Dissimilar welds with stainless and low-alloy steels
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Heat exchanger tubing and reactor piping
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Overlay cladding in corrosive environments
Chemical Composition (% Typical)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 58.0 – 63.0 |
| Iron (Fe) | 13.0 – 17.0 |
| Chromium (Cr) | 27.0 – 31.0 |
| Manganese (Mn) | ≤ 0.50 |
| Carbon (C) | ≤ 0.05 |
| Silicon (Si) | ≤ 0.50 |
| Aluminum (Al) | ≤ 0.50 |
| Titanium (Ti) | ≤ 0.30 |
Mechanical Properties (Typical)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 690 MPa |
| Yield Strength | ≥ 340 MPa |
| Elongation | ≥ 30% |
| Operating Temp. | Up to 980°C |
| Creep Resistance | Excellent |
Available Specifications
| Item | Detail |
|---|---|
| Diameter Range | 1.0 mm – 4.0 mm (standard: 1.2mm / 2.4mm / 3.2mm) |
| Welding Process | TIG (GTAW), MIG (GMAW) |
| Packaging | 5kg / 15kg spools or TIG straight rods |
| Surface Condition | Bright, clean, rust-free finish |
| OEM Services | Custom labeling, barcode, packaging customization available |
Related Alloys
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ERNiFeCr-2 (Inconel 718)
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ERNiCr-3 (Inconel 82)
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ERNiCrMo-3 (Inconel 625)
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ERNiCrCoMo-1 (Inconel 617)
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ERNiCr-4 (Inconel 600)
