Aluminum Fin Stock is aluminum strip that is used in various car radiators, heat shields, and Heating, Ventilation and Air Conditioning (HVAC) applications. Fin Stock is mostly produced from 1000, 3000, and 7000 series aluminum alloys. Aluminum Fin Stock is available in coiled sheet or foil in specific alloys, tempers and thickness ranges. This material is lightweight, formable and corrosion resistant. Let us work with you on your Fin Stock needs.