Alumnum Alloy

Alcoa’s (Pittsburgh, PA) QC-10™, the next generation of aluminum mold material, was developed in response to market need for an aluminum mold material with superior thick section properties.

Alcoa’s (Pittsburgh, PA) QC-10™, the next generation of aluminum mold material, was developed in response to market need for an aluminum mold material with superior thick section properties. This new proprietary alloy features high purity composition and quench insensitive microstructure, providing minimal reductions in strength across section thicknesses. The alloy’s strength characteristics remain very consistent from 8 through 24 inches—improving machining performance as it retains high strength through the plate thickness. In addition to its increased strength, the alloy offers performance improvement characteristics that make it an ideal mold material. With better corrosion resistance than traditionally used aluminum mold alloys, the alloy reduces maintenance time and is compatible with more than 75 percent of resins used in the marketplace. According to users during initial testing, this alloy’s characteristics advance the qualities of aluminum mold materials. Compared to other mold materials like P20 steel and copper beryllium, aluminum offers the collective properties desired by designers, including excellent thermal conductivity and machinability. Benefits include cycle time reduction, reduced mold production time and maximized machine performance.