Product DescriptionERNiFeCr-2 is a high-strength, corrosion-resistant
nickel-iron-chromium alloy welding wire used for welding Inconel
718 and similar materials. It contains significant amounts of
niobium (columbium), molybdenum, and titanium, which promote
precipitation hardening and provide excellent tensile, fatigue,
creep, and rupture strength. This filler metal is ideal for demanding aerospace, power
generation, and cryogenic applications that require mechanical
strength at elevated temperatures. It is suited for both TIG (GTAW)
and MIG (GMAW) welding processes and produces welds with good
ductility, excellent strength, and resistance to cracking.
Key FeaturesExcellent high-temperature strength, fatigue resistance, and stress
rupture properties Precipitation-hardenable alloy with niobium and titanium for
enhanced mechanical performance Outstanding resistance to corrosion, oxidation, and heat scaling Designed for welding Inconel 718 and similar age-hardenable nickel
alloys Suitable for aerospace, turbine, cryogenic, and nuclear components Smooth arc, minimal spatter, and crack-resistant welds Conforms to AWS A5.14 ERNiFeCr-2 and UNS N07718 standards
Common Names / DesignationsAWS: ERNiFeCr-2 UNS: N07718 Equivalent Alloy: Inconel 718 Other Names: Alloy 718 welding wire, 2.4668 TIG wire, Nickel 718
MIG rod
Typical ApplicationsJet engine components (discs, blades, fasteners) Gas turbines and aerospace hardware Cryogenic storage tanks and equipment Nuclear reactor parts and shielding Chemical and marine environments High-stress dissimilar joints
Chemical Composition (% Typical)| Element | Content (%) |
|---|
| Nickel (Ni) | 50.0 – 55.0 | | Chromium (Cr) | 17.0 – 21.0 | | Iron (Fe) | Balance | | Niobium (Nb) | 4.8 – 5.5 | | Molybdenum (Mo) | 2.8 – 3.3 | | Titanium (Ti) | 0.6 – 1.2 | | Aluminum (Al) | 0.2 – 0.8 | | Manganese (Mn) | ≤ 0.35 | | Silicon (Si) | ≤ 0.35 | | Carbon (C) | ≤ 0.08 |
Mechanical Properties (Typical As-Welded)| Property | Value |
|---|
| Tensile Strength | ≥ 880 MPa | | Yield Strength | ≥ 600 MPa | | Elongation | ≥ 25% | | Operating Temp. | Up to 700°C | | Creep Resistance | Excellent |
Available Specifications| Item | Detail |
|---|
| Diameter Range | 1.0 mm – 4.0 mm (Standard: 1.2 / 2.4 / 3.2 mm) | | Welding Process | TIG (GTAW), MIG (GMAW) | | Packaging | 5kg / 15kg spools, or TIG straight rods (1m) | | Surface Condition | Bright, clean, precision wound | | OEM Services | Available for labels, logos, packaging, and barcode customization |
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