The OK Tigrod 19.49 is a versatile bare Cu-Ni rod that can be used for welding a variety of similar alloys, such as 90Cu10Ni, 80Cu20Ni, and 70Cu30Ni. Adding nickel fortifies the weld metal and enhances its corrosion resistance, particularly in saltwater. This reliable alloy is commonly used for overlay welding of steels and for welding Cu-Ni components in desalination plants, making it a versatile solution for a wide range of welding needs.