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Grade: Nylon 12
Formula: PA 12 - (C₁₂H₂₃N₂)ₙ
Form: Rod
Material: Polyamide (PA)
CAS Number: 24937-16-4
Commodity: Polymers
Nylon 12 Rod combines low moisture uptake, high chemical resistance, and superior dimensional stability, making it well-suited for precision mechanical parts. In rod form, it provides excellent machinability and wear resistance, allowing for the creation of tight-tolerance bushings, gears, and spacers. Industries such as aerospace, chemical processing, and precision manufacturing value its ability to maintain mechanical integrity in humid or chemically aggressive environments. Specific uses include wear-resistant rollers in conveyor systems, high-strength insulators, and precision mechanical couplings. In research, Nylon 12 rods are used to evaluate polymer machining performance, investigate long-term wear patterns, and develop chemical-resistant structural prototypes. The combination of geometry-specific strength and polymer durability makes Nylon 12 rods indispensable for both high-performance industrial and experimental uses.
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Tolerances

Rod
Diameter +20% / -10%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Poor
Acids - dilute Fair-Poor
Alcohols Fair
Alkalis Good-Fair
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good-Poor
Halogens Poor
Ketones Good-Fair
Electrical Properties
Element Value
Dielectric constant @1MHz 3.5@100KHz
Dissipation factor @ 1kHz 0.06
Dielectric strength( kV mm⁻¹ ) 26-30@1mm
Surface resistivity( Ohm/sq ) 10¹³
Volume resistivity( Ohmcm ) 10¹²-10¹⁴
Physical Properties
Element Value
Flammability HB-V2
Radiation resistance Fair
Resistance to Ultra-violet Fair?
Limiting oxygen index( % ) 21
Water absorption - equilibrium( % ) 1.6
Density( gcm⁻³ ) 1.02
Mechanical Properties
Element Value
Hardness - Rockwell R84-107
Elongation at break( % ) 290-300
Tensile strength( MPa ) 50-55
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 130-135
Heat-deflection temperature - 1.8MPa( C ) 48-55
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 100-120

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