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Grade: Torlon® 4203L
Formula: PAI
Form: Ball/Sphere
Material: Polyamide/imide (PAI)
Commodity: Polymers
Diameter:
3.18mm
Type:
Precision Sphere
Sphericity:
25.4µm
Torlon 4203L Polyamide/imide Balls are a range of polymer balls available from Goodfellow. Available in 2 variations, the Torlon 4203L material offers high strength and stiffness at elevated temperatures. Potential applications for these polyamide-imide balls include bearings and bushings in high-heat environments such as aircraft engines or industrial furnaces. The balls maintain dimensional stability when exposed to temperatures up to 310°C.
Tolerances
Ball/Sphere
| Diameter | Standard | ±5% |
|---|---|---|
| Diameter | Precision | See Item |
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Fair-Poor |
| Acids - dilute | Fair |
| Alcohols | Good-Poor |
| Alkalis | Poor |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Good-Poor |
| Ketones | Good |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1MHz | 3.9-5.4 |
| Dissipation factor @ 1MHz | 0.03-0.042 |
| Dielectric strength( kV mm⁻¹ ) | 23at 1mm |
| Surface resistivity( Ohm/sq ) | 8-50 x 10¹⁷ |
| Volume resistivity( Ohmcm ) | 0.08-2 x 10¹⁷ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | V0 |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Good |
| Limiting oxygen index( % ) | 44-45 |
| Water absorption - equilibrium( % ) | 03-Apr |
| Water absorption - over 24 hours( % ) | 0.3 |
| Density( gcm⁻³ ) | 1.42-1.46 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | E72-86 |
| Poisson's ratio | 0.38 |
| Elongation at break( % ) | Jul-15 |
| Tensile modulus( GPa ) | 4.5-6.8 |
| Izod impact strength( J m⁻¹ ) | 60-140- notched |
| Tensile strength( MPa ) | 110-190 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 1.8MPa( C ) | 278-9 |
| Lower working temperature( C ) | -200 |
| Upper working temperature( C ) | 200-260 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1000 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 0.26-0.54@23°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 25-31 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 170-220 |
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Electrical Grade Polyamide/imide Film Grade: Electrical Grade
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Torlon® 4203L / Electrical Grade Polyamide/imide Rod Grade: Torlon® 4203L / Electrical Grade
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Alumina Balls
Formula: Al₂O₃
Quantity: 10 Pcs
Type: Non-Precision Sphere
Sphericity: Nominal
CAS Number: 1344-28-1
UOM Code: 439-337-21eachStarting at $117.65
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