4032-T651 Round Aluminum Bar Low Thermal Expansion Al-Si Alloy For Engine Pistons Compressor Wear Components

Product Overview 4032-T651 round aluminum bar is a heat-treatable aluminum-silicon alloy carrying roughly 12% silicon, a composition engineered for components that must hold precise dimensions while rubbing against other metal parts at elevated temperature. The dense silicon particle network gives 4032 excellent wear resistance and a coefficient of thermal expansion lower than most aluminum alloys, which keeps piston skirts, ring grooves and compressor bores stable as engine