Abso-friggin-loutely they will. Their business is to make money and they will take anyone's money. I called Waldorf Metals in Waldorf, Maryland and the gentleman told me to come get all I wanted for 75 cents a pound. It's all scrap of course, so, what forms it comes in anyone's guess, but, I would assume there is a lot of pipe and roof lead. Roof lead makes some of the finest bullets I have ever made in my casting career. I have yet made the trek to purchase any, but, I know I can if I need to. Can there be WW lead in that offer ? Yes. He stated they did have some WW, and I quickly told him I don't want it.
No not all scrap yards will sell to the public, In most cases their company are set up as wholesalers do not have the license to resell and collect taxes on what was sold. A lot of scrap yards will trade scrap for scrap as long as the trade is equal or they owe you money for the trade. When I used to scrap Super Salvage ( they will trade )in the District and down in St Marys along with Smiths inside the beltway will not resell to the public.