POM (Delrin)
CNC Machining
Overview
POM (Polyoxymethylene), also known as Delrin, is an engineering thermoplastic with excellent dimensional stability, low friction, and high stiffness.
Mechanical Properties
| Tensile Strength | 60-70 MPa |
| Elongation | 15-75% |
| Hardness | 80-85 Shore D |
Physical Properties
| Density | 1,410 kg/m³ |
| Melting Point | 175°C |
| Thermal Conductivity | 0.31 W/m·K |
Applications
Gears
Bearings
Bushings
Fasteners
Precision parts
Automotive components
Advantages
- Low friction
- High stiffness
- Excellent dimensional stability
- Good wear resistance
- Easy to machine
Limitations
- Poor UV resistance
- Flammable
- Limited chemical resistance
- Not transparent
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