RA330040000350M000 - Exocor RA330 .035 MIG Wire 30lb Spool - Heat Resistant Alloy

High-Performance Heat Resistant Alloy Wire

The Exocor RA330 MIG Wire (.035" diameter, 30lb spool) is a premium nickel-iron-chromium alloy consumable designed specifically for extreme high-temperature industrial applications. Known as the "workhorse" of the heat-treating industry, RA330 is engineered to provide exceptional resistance to oxidation and carburization at temperatures reaching up to 2100°F (1148°C). Its unique chemical composition, featuring approximately 35% nickel and 19% chromium, ensures that welded components maintain structural integrity even in the harshest furnace environments.

One of the standout characteristics of this alloy is its ability to withstand thermal shock. In applications involving repeated heating and quenching cycles, standard stainless steels often fail due to fatigue and cracking. Exocor RA330, however, is formulated to absorb these thermal stresses, making it the ideal choice for fabricating and repairing furnace muffles, retorts, and heat-treatment baskets. Furthermore, the high nickel content renders the weld metal immune to chloride-ion stress corrosion cracking, a common failure mode in many industrial settings.

This wire is also highly effective in carburizing and nitriding atmospheres. Where other alloys might become brittle or degrade rapidly, RA330 maintains its ductility and strength. It is commonly used to weld cast and wrought alloys of similar composition (UNS N08330) and can also be used for dissimilar welding applications where high-temperature performance is critical. The 30lb spool size is optimized for industrial production environments, reducing downtime for spool changes during large fabrication projects.

Key Industrial Benefits:

• Extreme Temperature Tolerance: Operates effectively up to 2100°F.
• Chemical Resistance: Superior protection against oxidation and carburization.
• Structural Stability: Resists grain growth and embrittlement during prolonged heat exposure.