Alloys used in investment castings and their costs vary widely, which would make pricing extremely difficult without material surcharges. To be as transparent and competitive as possible, PPCP breaks casting prices down into logical components. The first part is the cost of producing the casting. This does not change on a regular basis because volatile material costs are not included. The second part of the price is the material surcharge, which differs based on the selected alloy and its market price for that period of time. To keep pricing current, PPCP’s material surcharge schedule is updated monthly and published here on the PPCP website.