POM Acetal (Delrin): Hoch-Stiffness Engineering Thermoplastic für Precision Teile
ASTM D6778 · Published: 2026-06-03 · Updated: July 2026
POM (polyoxymethylene), best known as DuPont Delrin, is an engineering thermoplastic with exceptional dimensional stability, low friction, and high stiffness — making it the standard material for gears, bearings, bushings, conveyor chain links,...
POM (polyoxymethylene), best known als DuPont Delrin, ist ein engineering thermoplastic mit exceptional dimensional stability, niedrig friction, und hoch stiffness — making es der standard material für gears, bearings, bushings, conveyor chain links, und automotive kraftstoff system components. Sein fatigue widerstand ist der highest von any unfilled thermoplastic.
Quick Facts
| Kategorie | Thermoplastics |
| Norm | ASTM D6778 |
| Density | 1.41 g/cm³ |
| Yield Strength | 66 MPa |
| Tensile Strength | 70 MPa |
Global Equivalents & Cross-Reference
| Alternative Standard / Grade | Action |
|---|---|
| DuPont Delrin | Compare |
| Celcon | Compare |
| Hostaform | Compare |
| Tecaform | Compare |
Verwandt Materials
🧮 Material Weight Calculator
Calculate the weight based on this material's density: 1.41 g/cm³
Frequently Asked Questions
Wie tut acetal compare zu nylon für gears?
Acetal offers: (1) unter moisture absorption (0.2% vs 1.5-2.5% für nylon 6) — dimensions remain stable in humid environments; (2) unter friction — gears laufen mit less heat generation; (3) better fatigue widerstand. Nylon offers better impact widerstand und ist generally 20-30% unter kosten. Für precision gears, acetal ist der default choice.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu