Casting weight and cost
Work out how much metal a piece will use, from a wax weight or from an estimated volume, and what it will cost including a casting house's alloy and casting margin.
1. Metal
2. Weight
3. Cost
Casting houses charge over pure-content value, to cover alloying, the casting fee, and minimum charges.
Estimated metal weight
Per-gram rate used
Metal value (pure-content basis)
Cost incl. margin
Melt / scrap value
Work out what a piece is worth for its metal content alone, after a refiner's deduction.
Typical refiner deductions run 10 to 20%. Hallmarked UK alloys are a reliable fineness; unhallmarked pieces need testing before you trust the figure.
Pure content
Gross value at spot
Net after refiner fee