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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 coefficents 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
| Mechanical Information | ||||
| Density | Tensile Strength | Tensile Modulus | Elongation at Break % | |
|---|---|---|---|---|
| Imperial | 0.051-0.054 lb/in3 | 8-11 ksi | 310-600 ksi | 15-30 |
| Metric | 1.41-1.5 g/cc | 55.2-75.8MPa | 2,137-4,137 MPa | |
| Mechanical Information | ||||
| Flexural Strength | Flexural Modulus | Compressive Strength | Compressive Modulus | |
|---|---|---|---|---|
| Imperial | 12-13.5 ksi | 400-485 ksi | 12.5-16 ksi | 250-450 ksi |
| Metric | 82.7-93.1 MPa | 2,758-3,344 MPa | 86.2-110.3 MPa | 1,724-3,103 MPa |
| Mechanical Information | |||
| Izod Impact (notched) | Hardness, Rockwell | Coefficient of Linear Thermal Expansion | Heat Deflection Temp. at 26.4 KSI |
|---|---|---|---|
| 0.8-1 ft-lb/in | R89-122 | 4.7-5.4 x 10^-5 in./in./°F | 220-250 °F / 104-121 °C |
| Mechanical Information | |||
| Water Absorption %, 24hrs | Thermal Conductivity | ||
|---|---|---|---|
| 0.12-0.23 | 1.6-2.5 BTU-in/ft^2-hr-°F (unfilled only) | ||