4 Pack, Premium Bronze, Brazing Rod, Versatile & Strong, Bronze Flux-Coated Rods Are Ideal For Everyday Repairs Of Steel, Cast Iron & Copper Metals, Can Be Used On Galvanized Iron, Brass, Stainless & Chrome Plated Materials Or Any Combination Of Them, Provides Strong Corrosion Resistance, Intended For Hard Soldering, Brazing & Welding With A Tensile Strength Of 60,000 PSI, Working Temperature Of 1,620 Degrees Fahrenheit, Includes 4 Rods.