cnc machining services Injection Mold Material Selection for Prototype Injection Molding: Aluminum vs. Steel January 10, 2026By Terry Wen 0 Aluminum Mold, Injection Mold Material, Low-Volume Injection Molding, Mold Material Selection, Prototype Injection Molding, Prototype Mold Design, Rapid Prototyping, Short-Run Injection Molding, Steel Mold, Tooling for Prototypes Prototype injection molding guide comparing aluminum vs steel molds for cost lead time tool life and low volume production