Choosing between nylon, POM, polycarbonate, and PEEK can be challenging. Each of these engineering plastics offers a unique combination of properties, costs, and processing characteristics.
The Four Major Engineering Plastics at a Glance
| 財產 | Nylon (PA6) | POM (乙縮醛) | 個人電腦 | PEEK |
|---|---|---|---|---|
| Strength (MPa) | 70-85 | 60-70 | 55-75 | 90-100 |
| Max Use Temp (°C) | 100 | 100 | 120 | 250 |
| 耐化學性 | 良好 | 極佳 | Poor | Outstanding |
| 吸濕性 | 高 | 非常低 | 非常低 | 非常低 |
| 相對成本 | $$ | $$$ | $$$ | $$$$$$$$$ |
Nylon: The All-Round Workhorse
Best For: General engineering applications, parts requiring toughness and fatigue resistance, oil/hydrocarbon exposure, cost-sensitive projects.
Watch Out For: Moisture absorption causing dimensional changes, property variation with humidity, acid exposure.
POM (Acetal): The Precision Specialist
Best For: Precision mechanical components (gears, bearings), dimensional stability in varying humidity, low-friction sliding components.
Watch Out For: Limited impact resistance, formaldehyde degradation if overheated, poor adhesion.
Polycarbonate: The Impact Champion
Best For: Optical clarity applications, exceptional impact resistance, electrical enclosures, safety equipment.
Watch Out For: Very poor chemical resistance, environmental stress cracking, UV degradation without stabilizers.
PEEK: The High-Performance Specialist
Best For: Extreme temperatures (up to 250°C), aggressive chemical environments, aerospace and medical implants.
Watch Out For: Extremely high cost (10-20x nylon), high processing temperatures (350-400°C), requires specialized equipment.
Decision Matrix
| If Your Priority Is… | Best Choice | Second Choice |
|---|---|---|
| Lowest Cost | 尼龍 | 個人電腦 |
| Highest Strength | PEEK | Nylon GF30 |
| 耐化學性 | PEEK | POM |
| Wear Resistance | POM | 尼龍 |
| 耐衝擊性 | 個人電腦 | 尼龍 |
| 尺寸穩定性 | POM | PEEK |
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 work with all four engineering plastics. Get a quote within 24 hours.
常見問題
When is Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared a good option?
Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared 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 Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared?
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 Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared 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 Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared?
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。.
