TG62512538 - Techalloy 625 1/8" TIG Welding Rod - ERNiCrMo-3 Nickel Alloy

Techalloy 625 TIG Welding Rod (ERNiCrMo-3) - 3.2mm

The Techalloy 625 TIG Welding Rod is a premium nickel-chromium-molybdenum filler metal designed for the most demanding industrial applications. Classified as ERNiCrMo-3, this 3.2mm (1/8") rod is engineered to weld nickel-based alloys such as Inconel 625, Inconel 601, and Incoloy 825, as well as for cladding steel with nickel-chrome-molybdenum weld metal. Its specific chemical composition provides outstanding resistance to severe corrosive environments, particularly those containing chlorides and acids, making it a staple in the chemical processing and offshore industries.

One of the standout features of Techalloy 625 is its versatility in operating temperatures. It maintains high tensile strength and toughness from cryogenic lows up to elevated temperatures of 1800°F (982°C). This makes it an excellent choice for aerospace components, furnace equipment, and piping systems exposed to extreme heat. Additionally, the niobium (columbium) addition in the alloy acts as a stabilizer, preventing intergranular corrosion and ensuring the weld deposit remains crack-resistant even under high stress.

Fabricators frequently rely on Techalloy 625 for dissimilar metal joining. It is highly effective for welding stainless steels to nickel alloys or carbon steels, providing a robust bond that resists thermal fatigue. The rod produces a clean, stable arc with excellent puddle control, allowing for high-quality X-ray clear welds. Packaged in a durable 10lb tube, these 36-inch cut lengths are protected from moisture and contamination, ensuring they are ready for critical code work right out of the box.

Key Applications

• Chemical Processing: Piping, heat exchangers, and vessels handling acids and chlorides.
• Offshore & Marine: Components exposed to sea water and high salt environments.
• Aerospace: Engine exhaust systems and turbine seals.
• Power Generation: Pollution control equipment and nuclear components.