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
| Imóveis | PA6 (Nylon) | POM (Acetal) |
|---|---|---|
| Resistência à tração (MPa) | 70-85 | 60-70 |
| Módulo de flexão (GPa) | 2.5-3.0 | 2.6-2.9 |
| Alongamento na rutura (%) | 50-150 | 25-75 |
| Densidade (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.
Absorção de humidade
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.
Resistência química
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
| Imóveis | 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
As nossas capacidades
Com mais de 300 máquinas CNC, produzimos mais de 10.000 peças por dia com tolerâncias tão apertadas como ±0,005mm. Aceitamos MOQ a partir de 1 peça, com prazos de entrega que variam entre 24 horas a 15 dias. We machine both nylon and POM for precision applications. Obter um orçamento no prazo de 24 horas.
FAQ
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?
Verificar o tamanho da peça, as propriedades do material, o acabamento da superfície, a tolerância dimensional, a exposição ao calor, a direção da carga e se é necessário pós-processamento.
How does Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics compare with CNC machining?
A impressão 3D pode criar formas complexas rapidamente, enquanto a maquinagem CNC é frequentemente mais forte para superfícies precisas, tolerâncias mais apertadas e materiais de qualidade de produção.
What affects the cost of Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics?
O custo depende do material, do volume de construção, do tempo de impressão, da altura da camada, da remoção do suporte, do acabamento, da inspeção e do número de peças na construção.
