• Acrylonitrile butadiene styrene (ABS) alloy is a blended alloy formed by mixing of acrylonitrile butadiene styrene (ABS) and other metals in a specified amount. ABS alloys are classified into two major categories: Polycarbonate ABS Alloys (PC ABS alloys) and Polyethylene Terephthalate ABS alloys (PET ABS alloys).