POM In CNC Machining
POM, or Polyoxymethylene, is an engineering thermoplastic ideal for precision components. It offers exceptional stiffness, low friction, and outstanding dimensional stability, making it easy to machine and perfect for high-accuracy applications.
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Description & Characteristics
| Price | $ $ $ $ $ |
| Lead Time | < 10 days |
| Wall Thickness | 0.75 mm |
| Tolerances | ±0.125mm (±0.005″) |
| Max Part Size | 200 x 80 x 100 cm |
| Applications | Polyoxymethylene (POM) is a high-performance thermoplastic known for its superior stiffness and low friction properties. It is widely used in manufacturing precision parts that demand high accuracy, excellent dimensional stability, and ease of machinability. |
| Strengths | Exceptional mechanical properties, high precision, and repeatability. |
| Weaknesses | More limitations in geometry compared to 3D printing |
Mechanical & Physical Properties
| POM | Ultimate tensile strength | Yield strength | Young's modulus (modulus of elasticity) |
Elongation at break
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Hardness
|
UV resistance
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|---|---|---|---|---|---|---|
| POM-C | 60-70 MPa | 60-67 MPa | 2.5-2.7GPa | 30-32% | 88HRM | Poor |
| POM-C-FDA | / | 66-70 MPa | 2.8-3 GPa | 32-40% | / | / |
| POM-H | 60-89.6 MPa | 48.6-72.4 MPa | 2.5-4 GPa | 15-75% | 14.6-24.8 HV | Poor |
| POM-C ESD | / | 45 MPa | / | 40-50% | / | / |
Thermal & Electrical Properties
| POM | Maximum service temperature | Thermal expansion coefficient | Thermal conductivity |
ESD Safety
|
|---|---|---|---|---|
| POM-C | 82-90°C |
90-97 10^-6/ºC
|
0.31-0.39 W/(m⋅°C)
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YES |
| POM-C-FDA | 100-140°C |
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0.31-0.39 W/(m⋅°C)
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| POM-H | 76.9-96.9°C |
75.7-202 10^-6/ºC
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0.221 - 0.35 W/(m⋅°C)
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YES |
| POM-C ESD | 100-140°C |
10-1310^-6/ºC
|
0.3 W/(m⋅°C)
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Note: POM-C ESD Electrical resistivity=10 μΩ*cm