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Acetal
Acetal Product Guide
Applications | Mechanical Data
Overview
Acetal is a thermoplastic made from POM (polyoxymethylene) resin and is a popular option for replacing parts that are traditionally machined from metals. Its physical properties remain unchanged in a variety of environments and in temperatures up to 180°F. Acetal is also known for its high tensile strength, rigidity, impact and solvent resistance, glossy molded surface, and low static/dynamic coefficients of friction. Acetal is commonly used for high speed conveyor lines, bearings, gears, food service applications, valves, and manifolds.
Common Brand/Trade Names
Delrin®, SUSTARIN®, TECAFORM®
Other Resources
Products
Acetal Sheet/Plate | Acetal Round Rod | Acetal Sample Pack
Applications
- Electrical Insulating Parts
- Jigs & Fixtures
- Telephone Keypads
- Conveyor Belt Links
- Fluid Handling
| Physical Properties Acetal | |||||
| | |||||
|---|---|---|---|---|---|
| Density | 0.051-0.054 lb/in3 | ||||
| Tensile Strength | 8-11 ksi | ||||
| Tensile Modulus | 310-600 ksi | ||||
| Elongation at Break Percentage | 15-30% | ||||
| Flexural Strength | 12-13.5 ksi | ||||
| Flexural Modulus | 400-485 ksi | ||||
| Compressive Strength | 12.5-16 ksi | ||||
| Compressive Modulus | 250-450 ksi | ||||
| Izod Impact (notched) | 0.8-1 ft-lb/in | ||||
| Hardness, Rockwell | R89-122 | ||||
| Coefficient of Linear Thermal Expansion | 4.7-5.4 x 10^-5 in./in./°F | ||||
| Heat Deflection Temp. at 26.4 ksi | 220-250 °F | ||||
| Water Absorption %, 24hrs | 0.12-0.23% | ||||
| Thermal Conductivity | 1.6-2.5 BTU-in/hr-ft^2-°F (unfilled only) | ||||
