Aluminum Aluminum Lightweight, corrosion-resistant, and easy to machine, making it ideal for a wide range of applications Stainless steel Stainless steel Strong, corrosion-resistant, and durable, perfect for demanding and high-strength parts Steel Steel Versatile, durable, and cost-effective, widely used for structural and mechanical components Tool Steel Tool Steel Extremely hard and wear-resistant, used for manufacturing cutting tools and dies Brass Brass Excellent machinability, corrosion resistance, and electrical conductivity, often used in precision parts Bronze Bronze High wear resistance and corrosion resistance, commonly used in bearings and gears