Valimet’s Aluminum Alloy Silicon powders are made from the Eutectic Alloy 4047 (11-13% Si). These powders are well suited for corrosion and erosion resistant coatings, catalytic reactions, and metal matrix composites. Many of our standard grades of Aluminum Silicon powders correspond to Pratt & Whitney, General Electric, Boeing, Rolls Royce, and other commercial specifications. Custom sizing is available. Please see the attached data sheets for more information.