You'll find two Atlas Iron and Metal locations in Dallas, TX. One on Riverfront Blvd and the other on S. Central Expressway. Each location purchases all kinds of scrap metal like- copper, aluminum, brass, electric motors and Iron. Here is a list of unacceptable items:

What We Won’t Buy

Hazardous waste (including asbestos)
PCB/Transformers/Capacitors
Any CFCs
Cylinders or other containers of compressed gas (including propane)
Radioactive materials
Mercury / mercury switches
PCB containing materials such as capacitors or light ballasts
Lead iron pipes
Sealed containers
Liquids of any type
Radioactive materials
Flammable materials
Trash, garbage, concrete and other non-recyclable items
Broken, cracked, or leaking batteries
Materials with strong or objectionable odors
Materials containing asbestos
Unidentifiable materials
Manhole covers
Catalytic converters
Tires