... Anodizing or epoxy powder coating OEM design accepted Aluminum 6063 heatsinkOther available processes: sand casting, investment casting, ... machiningAvailable materials: cast iron, carbon steel, stainless steel, aluminum, brass, and zinc alloyStandards: JIS, DIN, ASTM, ... considerations: alloy, wall thickness, temper and shape. High electrical conductivityOn a weight-to-weight basis, aluminum carries ...