1. I was given a batch of salvagings from a rock crusher bearing replacement. I ended up with about 7 pounds of ingots with a noticeable golden coloring to them when I smelted them. They melted easily in my RCBS furnace and are pretty hard and make a nice clink when bumped together. I suspect they have a high tin content and would like to use it to make hard alloy BN20+/-. Anyone have an idea on what I have content-wise?
2. I was also given two small bars of what the donor thought was antimony. They are very shiny, hard, and heavy and don't seem to be affected by dampness. The number 888 is cast into them and they don't want to melt in my RCBS furnace. Does any one have an idea as to what it might be? A science teacher friend thinks he can get a density value for them but he says it is a PITA to do. Thanks for any help you can give!