The Alloy 625 (NiCrMo-3) TIG wire is a premium nickel-chromium-molybdenum filler metal engineered for TIG (GTAW) welding of high-performance nickel alloys such as Alloy 625, Inconel® 601, Incoloy® 800, Alloy 825 and Alloy 926 as well as for welding dissimilar joints to stainless and carbon steels.
This versatile wire produces clean, ductile welds with very good resistance to pitting, stress corrosion and high-temperature oxidation, making it suitable for demanding environments such as chemical processing, marine engineering, aerospace components and pollution-control systems.
Key Features
High-Nickel Alloy Filler: Designed for welding nickel-chromium-molybdenum base metals including Alloy 625 and similar superalloys, delivering excellent mechanical and corrosion-resistant welds.
Excellent Corrosion Performance: Offers very good resistance to pitting, crevice corrosion and stress corrosion cracking, ideal for harsh chemical and chloride environments.
Strong at Variable Temperatures: Weld deposits exhibit good mechanical properties at both high and low service temperatures, suitable for use from cryogenic conditions up to approx. 540 °C.
Versatile Compatibility: Can be used for joining nickel alloys to each other or to stainless and carbon steels, useful in multi-material fabrications.
Stable TIG Arc & Weld Quality: Produces a smooth, clean arc with excellent bead appearance and ductility — ideal for precision TIG welding applications.
Standards Compliant: Meets AWS A5.14 – ERNiCrMo-3 and EN ISO 18274 – Ni 6625 / NiCr22Mo9Nb classifications, ensuring consistent performance and quality.
Workshop-Friendly Packaging: Supplied on 5kg spools with common TIG diameters 2.40mm and 3.20mm; each spool 1000mm in length.
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