Stainless steel welding rod is a consumable metal electrode with a specific chemical composition that, when used with an arc welding process, melts to form a filler metal to join stainless steel components. Its purpose is to create a strong, corrosion-resistant, and durable weld that matches the properties of the base stainless steel material. The correct grade of rod must be chosen to ensure compatibility with the base metal and the specific welding application, such as construction, marine, or industrial settings.