There are two types of copper bus bar, which is also called copper tubing and copper pipe. These two types are simply called #1 and #2, and each is worth money as a scrap material. Copper is a valuable material in many different industries, so it's a big ticket item at scrap yards.
What is number 2 copper tubing?
#2 Copper Tubing (Pipe) / Bus Bar #2 Copper Tubing is also bought by scrap yards for recycling. As the name suggests, this copper is sold at lower prices because it is acceptable to have other metals included, such as brass or tin fittings. It is also ok if there is some coating or soldering left, etc.