Airgas makes available three types of carbon steel gas welding rod. RG45 is a general-purpose, copper coated, gas welding rod used for welding low carbon steels up to ¼" thick. It is a great selection when ductility and machinability are most important. RG60 is a high strength alloy used for gas brazing of low carbon and low alloy steels. It is used in applications where a high tensile strength is needed. The high silicon and manganese content in the product eliminates the need for flux when welding. RG65 is a low alloy oxy-fuel rod designed for high speed fusion welding of pressure vessels, tanks and piping.

Gas Welding Rods Product Guide