Makes a sound joint with slight penetration to base metal that is stronger than mild steel. Join thick or thin parts with a 45,000 lb tensile strength. 1. Thoroughlyclean the area youre about to weldby brushing the base with stainless steel brush until it becomes shiny. 2. Thenevenly heat the area to be welded. 3. As you heat,rub the rod vigorously against The heated area until the rod starts flowing. Caution:Never apply heat directly to the rod as it will crumb, and if you manage to melt the rod directly, the weld will be easily breakable. Remember, melting the rod directly is a wrong way, and makes crumby welds. Package Includes: 20 pcs Welding Rods 50 pcs Welding Rods 100 pcs Welding Rods