The **AWS Class ERNiCr-4** welding wire is mainly utilized for welding **nickel-chromium alloys like Inconel 600 and 601**, as well as for **joining dissimilar metals**, such as nickel alloys to stainless or low-alloy steels. It’s perfect for **furnace components, heat exchangers, boilers, turbine parts, and chemical processing equipment** that operate in high-temperature and corrosive environments. This alloy boasts excellent resistance to oxidation and carburization, making it an ideal choice for applications that demand durability and reliability.