Certified Alloy Products Inc (CAPI) specialises in the production of high-performance vacuum-refined alloys for use in aerospace and industrial gas turbine engines, as well as other demanding commercial and industrial applications.

The site maintains a variety of OEM, industry and quality related accreditations allowing them to produce nickel and cobalt superalloys from elemental metals including: nickel, cobalt, chrome, molybdenum and other alloying elements. CAPI also has air melt capability for smaller quantities of specialty alloys.

CAPI is a facility of Doncasters Group.