Hmm availability is good you can buy ingots
Price a bit high current price 16.50 a pound
yes low melting point relatively easy to cast.
I just paid $ 4 for brass .
Pewter is mostly tin, considered by some as a poor mans silver substitute.
So what kind of train ard you going to ride on it? Will it get a lot of use?
if the wheel are mostly decorative say a display model probably ok if there will be any significant load IMHO a lot better choices out there.
I was actually thinking of putting a small babbit section where the wheel axle makes contact with the truck frame.
Again, working indoors is an issue hence the need for low melting temp's.
Well also because I can get a new Lee melting pot for 69 bucks..
I don't think I would want to melt down brass or steel at the kitchen table.... My wife gets mad at me enough without lighting her table on fire.....
I think pewter is very UNsuitable for a wheel. It is very soft, will not wear well, and may even distort just under pressure of handling. Think of its ''normal' uses as a decorative casting material for jewelery. The stuff used for harder items like beer mugs or plates I suspect is a much harder alloy.
Either machine your wheels from a solid like brass or steel, or look for commercial wheels.
If you really want to cast them look for a jewelery casting business. I use one in Rhode Island, but he will no longer take new customers. I make a master pattern he makes a rubber mold for usually $25-$40, then cast parts in bronze are $2 -$10 based on weight. A model train wheel would likely be in the $2-$3 range.