High Tensile Chromium Nickel Steel Welding Rod For Welding Carbon And Low Alloy Steels Together Or To Stainless Steel; 312 Is A Universal Low Carbon Electrode Specifically Designed For Welding Steels Of Low Weldability; Applications Include Welding Austenitic Manganese Steel; Medium And High Carbon Hardened Steels; Tools; Dies; Springs; Etc. Which May Be Of Unknown Steel.