IANICRMO3000350M00 - Alloy 625 MIG Welding Wire .035 30lb Spool

Technical Overview of ERNiCrMo-3 (Alloy 625) MIG Wire

The ERNiCrMo-3 MIG welding wire, commonly referred to as Alloy 625, is a premium nickel-chromium-molybdenum filler metal designed for the Gas Metal Arc Welding (GMAW) process. This consumable is engineered to meet the rigorous requirements of AWS A5.14 specifications, delivering weld deposits that exhibit exceptional mechanical properties and corrosion resistance. The alloy composition is specifically balanced to provide superior resistance to pitting, crevice corrosion, and stress-corrosion cracking, particularly in aggressive chloride-containing environments such as seawater and chemical processing fluids.

One of the defining characteristics of this filler metal is its stability across a vast temperature spectrum. It maintains high tensile strength and fatigue resistance from cryogenic temperatures up to service temperatures of 1,800°F (982°C). This thermal stability is attributed to the stiffening effect of molybdenum and niobium on the nickel-chromium matrix, which precludes the need for precipitation hardening heat treatments. Consequently, the weld metal retains its ductility and toughness in the as-welded condition, making it a reliable choice for critical structural components in power generation and aerospace applications.

Metallurgically, ERNiCrMo-3 is the preferred choice for welding nickel-based alloys such as ASTM B443, B444, and B446 (Alloy 625), as well as Alloys 601, 690, 800, and 825. It is also the industry standard for joining dissimilar metals, effectively bridging the gap between carbon steels, low-alloy steels, and various stainless steel grades without compromising the structural integrity of the joint. The wire is precision-wound on a 30lb spool to ensure consistent feedability and arc stability during automated or semi-automatic welding procedures.

Key Technical Specifications:

• Classification: AWS A5.14 ERNiCrMo-3
• Alloy Base: Nickel-Chromium-Molybdenum
• Service Temperature: Cryogenic to 1800°F
• Corrosion Resistance: Excellent against phosphoric acids, organic acids, and seawater