Delrin (POM / Acetal)
Delrin (POM) is a high-performance acetal homopolymer with excellent dimensional stability, low friction, and high stiffness. It is the workhorse engineering plastic for precision mechanical components that require low friction and tight tolerances.
Machinability
85/100
Tolerance
±0.02 mm
Category
Engineering Plastics
Material Properties
| Property | Value |
|---|---|
| Tensile Strength | 70 MPa (10.2 ksi) |
| Yield Strength | 65 MPa (9.4 ksi) |
| Hardness | Rockwell M80 |
| Density | 1.42 g/cm³ |
| Machinability Rating | 85/100 |
| Thermal Conductivity | 0.31 W/m·K |
| Melting Point | 175 °C |
| Tolerance | ±0.02 mm |
Common Grades
Delrin 150Delrin 500Delrin AFPOM-CPOM-H
Advantages
- Excellent dimensional stability
- Low friction / self-lubricating
- High stiffness
- quality-documented grades available
- Cost-effective
Limitations
- Limited temperature resistance (100°C max)
- Not suitable for acids
- Flammable
- Difficult to bond or paint
Common Applications
Gears
Bearings
Bushings
Rollers
Clips
Conveyor parts
Pump impellers
Industries Served
AutomotiveConsumer ProductsIndustrial MachineryFood Processing
Compatible CNC Processes
CNC Milling
Tolerance: ±0.02 mm (±0.001")
View Details→CNC Turning
Tolerance: ±0.02 mm (±0.001")
View Details→4.5-Axis CNC Machining
Tolerance: ±0.02 mm
View Details→Wire EDM
Tolerance: N/A
View Details→Rapid Prototyping
Tolerance: ±0.02 mm
View Details→Surface Finishing
Tolerance: ±0.02 mm (finished)
View Details→Available Surface Finishes
As-MachinedPolishedBead Blast
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