Nylon and POM (polyoxymethylene, also known as acetal or Delrin) are two of the most important engineering plastics. Both are widely used for precision mechanical components, but their distinctly different properties make each better suited for specific applications.
Mechanical Properties Head-to-Head
| 財產 | PA6 (Nylon) | POM (乙縮醛) |
|---|---|---|
| 拉伸強度 (MPa) | 70-85 | 60-70 |
| 彎曲模量 (GPa) | 2.5-3.0 | 2.6-2.9 |
| 斷裂伸長率 (%) | 50-150 | 25-75 |
| 密度 (g/cm³) | 1.14 | 1.41 |
Wear and Friction: A Critical Difference
POM’s key advantage over nylon is its excellent wear resistance and low coefficient of friction (0.2-0.35 against steel), making it preferred for gears, bearings, and sliding components.
吸濕性
POM absorbs less than 0.3% water even at saturation, while nylon absorbs 2.5-9.5% depending on conditions. This means POM parts maintain consistent dimensions regardless of humidity.
耐化學性
Nylon is resistant to oils, greases, fuels, and alkalis. POM offers excellent resistance to organic solvents, oils, and neutral chemicals but is attacked by strong acids.
Thermal Properties
| 財產 | PA6 | POM |
|---|---|---|
| Melting Point (°C) | 220 | 165-175 |
| HDT at 1.8 MPa (°C) | 65 | 95-110 |
| Continuous Use Temp (°C) | 80-100 | 90-100 |
Application Guide
Choose Nylon When:
- Impact resistance and toughness are critical
- Parts experience dynamic loading
- Higher temperature resistance is needed (PA66)
Choose POM When:
- Dimensional stability in varying humidity is critical
- Low friction and wear resistance are priorities
- Parts operate in wet environments
- Precision mechanical components are needed
Our Capabilities
With over 300 CNC machines, we produce more than 10,000 pieces daily with tolerances as tight as ±0.005mm. We accept MOQ from 1 piece, with delivery times ranging from 24 hours to 15 days. We machine both nylon and POM for precision applications. Get a quote within 24 hours.
常見問題
When is Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics a good option?
Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics is a good option when fast iteration, complex geometry, low tooling cost, or low-volume production is more important than molded-part unit cost.
What should be checked before choosing Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics?
檢查零件尺寸、材料特性、表面光潔度、尺寸公差、受熱情況、負載方向，以及是否需要後加工。.
How does Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics compare with CNC machining?
3D 列印可以快速製造複雜的形狀，而 CNC 加工通常在精密表面、更小的公差和生產級材料方面更強。.
What affects the cost of Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics?
成本取決於材料、建置量、列印時間、層高、支撐移除、精加工、檢查以及建置中的零件數量。.
