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Material Overview
What is PA612?
PA612 plastic (polyamide 6/12) is an extruded nylon material that occupies a middle ground in the polyamide family — providing better dimensional stability than PA6 and PA66 through reduced moisture absorption, while maintaining solid mechanical strength and fatigue resistance. Ready Plastics stocks PA612 in sheet and rod for precision machining into components that must perform consistently in variable humidity and temperature environments.
Lower moisture absorption directly benefits dimensional consistency. Components machined from PA612 hold tighter tolerances over time compared to high-moisture-absorbing grades, making it a sound choice for precision gears, bushings, fittings, and housings in systems that cycle between wet and dry conditions. PA612 also offers good wear resistance and fatigue performance, supporting long service life in parts subject to cyclic mechanical stress.
Positioning within the nylon family. PA612 bridges the gap between PA6/PA66 (highest strength, higher moisture absorption) and PA12 (lowest moisture absorption, lowest modulus). It is a PA612 material choice when engineers need more dimensional stability than PA6 but prefer better mechanical strength than PA12, making it a versatile selection for precision industrial components.
Sibling grades. For maximum strength and heat resistance, see PA66. For the lowest moisture absorption in extruded nylon, consider PA12. For the high-strength base grade with excellent toughness, see PA6. Browse the full nylon material lineup at Ready Plastics to select the grade best matched to your application.
Frequently Asked Questions
PA612, answered
What is PA612 plastic?
PA612 (polyamide 6/12) is an extruded nylon material that balances mechanical strength, toughness, and reduced moisture absorption. It sits between PA6/PA66 (stronger, higher moisture uptake) and PA12 (lowest moisture absorption, lower stiffness) in the nylon family, making it suitable for precision components requiring consistent dimensional behavior in variable environments.
How does PA612 compare to PA6?
PA612 absorbs less moisture than PA6, offering better dimensional stability in humid or variable-humidity environments. PA6 provides higher tensile strength and impact toughness. Choose PA612 when dimensional consistency across moisture conditions is more important than maximum strength.
How does PA612 compare to PA12?
PA612 offers higher mechanical strength and stiffness than PA12, while PA12 has the lowest moisture absorption of common extruded nylon grades. PA612 is the choice when you need more structural performance than PA12 can offer but still require better moisture stability than PA6 or PA66.
What shapes does Ready Plastics stock in PA612?
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