Comparison of CNC Machining Materials

The information contained herein is typical values intended for reference and comparison only. They shall NOT be used as a basis for design specifications or quality control.

  • PEI polyetherimide engineering plastic pellets

    PEI

    Temperature Resistance, Strength, CorrosionResistant, Flame Retardancy, Electrical Insulation, Aging Resistance

    PEI (polyetherimide) is a high-performance thermoplastic engineering plastic that combines excellent heat resistance, mechanical properties, and chemical stability, enabling it to be widely used in high-end industrial fields such as aerospace, electronics and electrical engineering, and medical equipment.

  • PP injection molding plastic material — durable, chemical-resistant polypropylene for precision-molded components.

    PP

    Corrosion Resistant, Strength

    Polypropylene (PP) is a well-balanced thermoplastic characterized by lightweight material, excellent chemical resistance, and good flexibility. Owing to these properties, it finds wide application in fields such as packaging, household appliances, automotive, daily necessities, and medical devices.

  • Stainless steel CNC machining metal material — corrosion-resistant, high-strength metal for precision CNC machined components.

    Stainless Steel 304

    Corrosion Resistant, Economical, Machinability

    stainless steel 304 is also known as 18/8 stainless steel, which contains approximately 18% chromium (Cr) and 8% nickel (Ni). It not only possesses excellent oxidation resistance and corrosion resistance, but also has good workability and surface quality. Currently, it is the most widely used stainless steel grade in industrial manufacturing and civil applications.