I am constantly reading and expanding my knowledge base. Here where I am at, Wheel weights are hard to come by and I am resigned to negotiations with the only scrap yard that will resale to me in 50 miles and all the tire shops told me to get bent because they are contracted out now. However, range scraps only cost me only my time and effort to mine. I would love to get it close to Wheel weight properties like heat treat ability. The range scraps I get are around 12 +/- a bhn. I understand that I could still heat treat that if needed but a grain refiner would enhance that. I stumbled across this article http://www.lasc.us/WiljenArsenic.htm and it raised some questions for me. It says that copper, arsenic, selenium and sulfur are grain refiners. CWW's have arsenic and I have started reading the copper alloying thread (still reading it) and I grasp the process. Though it seams long and tedious. Adding arsenic understandable has its dangers. Has anyone tried sulfur or selenium? I have tried adding sulfur while smelting and it liquefies and bust into an obnoxious odorous flame. is there a better process for adding sulfur or am I doing it wrong? I have tried googling and the search for selenium and sulfur alloying with no luck.
My other need for training, is I am allowed to roam the scrap yard and pick out what I want to buy. Some scraps I can identify like (unsorted) wheel weights, lead sheeting and lead pipes. Is there a source of tin I could potential find there? I have asked them if the have any type alloy leads or babbit and they gave me deer in the head light looks. I could identify the printer types if it was in letters but I wouldn't be able to identify babbit if I tripped over it. Any tips for hidden treasures would be greatly appreciated.