Scrap metal is a valuable commodity, and the highest paying scrap metal depends on the current market prices. Generally, copper is the most valuable scrap metal due to its high demand in manufacturing and construction. Copper is used in a variety of products, from electrical wiring to plumbing fixtures, and its price fluctuates depending on supply and demand. Aluminum is another highly sought-after scrap metal due to its lightweight properties and ability to be recycled easily. Steel is also a popular scrap metal because it can be melted down and reused for a variety of purposes. The price of steel varies depending on the grade of steel being recycled. Other metals such as brass, bronze, and stainless steel are also valuable scrap metals that can fetch good prices depending on market conditions.