Weld Mold 4082 description: Weld Mold 4082 is a premium quality material that is recommended for high heat and corrosion applications. Can be used for overlay and joining of carbon, stainless, Inconel and Monel alloys. Clean all areas to be welded. No pre-heat is required on inconel or stainless products. Pre-heat according to base metal being welded. Use stringer passes or very slight weave using short arc.