Material grade · PA6
Nylon PA6
Last updated October 12, 2026
Machining guidance for PA6 nylon parts where toughness, wear, moisture conditioning and dimensional change must be considered.
Overview
PA6 is a polyamide engineering plastic valued for toughness, fatigue resistance and wear performance. It is used for rollers, gears, guides, bushings and structural plastic parts in appropriate environments.
Moisture absorption is a primary design issue. Conditioned PA6 can change dimensions and mechanical behavior compared with dry stock. Cast and extruded stock, filled grades and heat-stabilized formulations are not interchangeable.
Scope note: This article explains general material behavior. It is not a statement that every form, temper or grade is held in stock. AYBERK confirms sourcing, process capability and project requirements through manual RFQ review.
Material characteristics
Tough and wear resistant
Useful for dynamic machine elements within load, speed and temperature limits.
Moisture responsive
Dimensions and properties change with humidity and conditioning.
Creep under sustained load
Long-term stress requires lower allowable loading than short-term tests imply.
Technical properties
Use values only with the stated alloy condition, product form and source standard. Blank values are intentionally not inferred.
General properties
- DesignationSpecify manufacturer grade, stock process and conditioning datasheet
- PA6
- Reference condition / formConfirm on purchase specification and drawing
- Cast/extruded, filled/unfilled and moisture condition confirmed
Physical properties
- Reference densityTypical handbook or supplier-datasheet value; not an acceptance limit
- typically about 1.13 g/cm³ unfilled, grade-dependent
- Physical-property interpretationUse the selected grade datasheet for design calculations
- Moisture uptake and thermal expansion can produce meaningful dimensional change in service.
Mechanical properties
- Mechanical-property interpretationCondition, thickness and test method must be stated
- Moisture, temperature, reinforcement and conditioning strongly influence modulus, strength and impact behavior.
Chemical / composition data
- Composition controlSpecify manufacturer grade, stock process and conditioning datasheet
- PA6 is a polyamide 6 polymer available unfilled or reinforced and with stabilizer, lubricant or color packages.
Machinability and process notes
Sharp tools, low heat and broad support help PA6 machine cleanly. Internal stress in stock may release after heavy cuts, and flexible features can deflect during measurement.
State the service humidity and conditioning basis. Provide clearance for swelling, avoid thin unsupported walls and use inserts or generous engagement for repeated fasteners.
Final feeds, speeds, tooling, coolant, workholding and inspection are process decisions made from the drawing and the verified stock. General guidance here does not replace a project-specific manufacturing review.
Typical applications
Rollers and guides
Wear components with load, speed and moisture review.
Gears and bushings
Dynamic parts with adequate clearance and lubrication strategy.
Structural plastic parts
Brackets and supports within creep and temperature limits.
Surface finishing compatibility
As-machined
Preferred for most functional surfaces.
Conditioning
Moisture conditioning may be required before final dimensional acceptance.
Marking
Grade-dependent mechanical or laser identification.
Advantages and limitations
Advantages
Toughness, fatigue behavior, low friction and wear performance support moving and structural plastic components.
Limitations
Moisture-driven dimensional change, creep and heat limits can prevent precision substitution for POM or metal.
Design considerations
Specify PA6 grade, filler, stock process and conditioning. Dimension and inspect at an agreed moisture state when fit is critical.
Where properties are safety-critical, specify the governing standard, lot documentation and required test evidence. Dimensional and cosmetic requirements should be separated so they can be inspected at the correct production stage.
Material composition and specification
PA6 is a polyamide 6 polymer available unfilled or reinforced and with stabilizer, lubricant or color packages.
Reference framework: Specify manufacturer grade, stock process and conditioning datasheet The purchase document and material certificate govern; this overview is not a certificate of conformity.
CNC machining recommendations
State the service humidity and conditioning basis. Provide clearance for swelling, avoid thin unsupported walls and use inserts or generous engagement for repeated fasteners.
Geometry-specific decisions include stock allowance, support, cutter reach, burr control, thermal management and the point at which critical dimensions are verified. Share expected quantity and finishing requirements with the drawing.
Material selection guidance
Choose PA6 for tough wear parts where moisture change can be managed. Compare POM for better humidity stability and PC for impact-resistant housings.
If an alternative is acceptable, state the performance priorities instead of naming an uncontrolled substitute. Any alternative remains subject to customer approval.
Material and part gallery
Discuss Nylon PA6 for your project
Send the drawing, material standard, condition and quantity. AYBERK will confirm availability and provide a manual quotation.
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