Product Description

ERNiCrMo-3 is a solid nickel-chromium-molybdenum alloy welding wire used for welding Inconel 625 and similar corrosion- and heat-resistant alloys. This filler metal offers exceptional resistance to pitting, crevice corrosion, intergranular attack, and stress corrosion cracking in a wide variety of severely corrosive environments, including seawater, acids, and oxidizing/reducing atmospheres.

It is widely used for both overlay cladding and joining applications in industries such as chemical processing, marine, power generation, and aerospace. ERNiCrMo-3 is suitable for TIG (GTAW) and MIG (GMAW) processes.

Key Features

• Exceptional resistance to seawater, acids (H₂SO₄, HCl, HNO₃), and high-temperature oxidizing/reducing atmospheres

• Excellent pitting and crevice corrosion resistance in chloride-rich environments

• Outstanding weldability with smooth arc, minimal spatter, and clean bead appearance

• Maintains mechanical strength up to 980°C (1800°F)

• Highly resistant to stress corrosion cracking and intergranular corrosion

• Ideal for dissimilar metal welds, overlays, and hardfacing

• Conforms to AWS A5.14 ERNiCrMo-3 and UNS N06625

Common Names / Designations

• AWS: ERNiCrMo-3

• UNS: N06625

• Equivalent: Inconel 625

• Other Names: Nickel Alloy 625 filler metal, Alloy 625 TIG wire, 2.4831 welding wire

Typical Applications

• Marine components and offshore structures

• Heat exchangers, chemical processing vessels

• Nuclear and aerospace structures

• Furnace hardware and flue gas scrubbers

• Cladding on carbon or stainless steel for corrosion resistance

• Dissimilar welding between stainless steel and nickel alloys

Chemical Composition (% Typical)

Mechanical Properties (Typical As-Welded)

Available Specifications

Related Alloys

• ERNiCrMo-4 (Inconel 686)

• ERNiCrMo-10 (C22)

• ERNiFeCr-2 (Inconel 718)

• ERNiCr-3 (Inconel 82)

• ERNiCrCoMo-1 (Inconel 617)