High mechanical strength and toughness, with excellent tensile and compressive strength. Its tensile strength exceeds that of metals, while its compressive strength is comparable to metals, but its rigidity is not as high as metals. The tensile strength is close to the yield strength, more than double that of ABS. It has strong ability to absorb impact and stress vibrations, with an impact strength much higher than that of general plastics and superior to that of acetal resins.

2. Outstanding fatigue resistance; components can maintain their original mechanical strength after multiple bending cycles. PA is commonly used in applications where periodic fatigue is evident, such as in escalator handrails and the plastic wheel rims of new bicycles.

3. High softening point and heat resistance (e.g., nylon 46, high crystalline nylon has a high thermal deformation temperature, allowing long-term use at 150 degrees. PA66, after being reinforced with glass fiber, achieves a thermal deformation temperature above 250 degrees).

4. Smooth surface with low friction coefficient and wear resistance. Features self-lubrication as a moving mechanical component, low noise, and can be used without lubricant under low friction conditions. If lubricant is necessary to reduce friction or aid in heat dissipation, options include water-oil, grease, etc. Consequently, it has a long service life as a transmission component.

5. Corrosion-resistant, highly resistant to alkalis and most saline solutions, also withstands weak acids, machine oils, gasoline, aromatic hydrocarbons, and general solvents; inert to aromatic compounds but not to strong acids and oxidizers. Can resist the侵蚀 of gasoline, oil, fats, alcohol, and weak alkalis, and possesses excellent anti-aging properties. Suitable for packaging lubricants, fuels, and other materials.