Kid if you are serious about getting scrap
then you need to consider how you will turn it to profit.
otherwise you will loose money on the transactions.
Think for a moment how most of the scrap is obtained in your area?
Some one goes to places with it and picks it up in return they pay the companies they get it from a percentage of the profit. Next way is to just advertise for it.
But you will likely need to by low and seel high, unless you are funded to the extent you can transport it to China where you can make a higher profit on steel.
Just drive around. You will see these little blue bins people put at the end of their driveways. They are full of aluminum cans you can collect and sell.