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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

Weight Calculator

 

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
 
Density0.051-0.054 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 Expansion4.7-5.4 x 10^-5 in./in./°F
Heat Deflection Temp. at 26.4 ksi220-250 °F
Water Absorption %, 24hrs 0.12-0.23%
Thermal Conductivity 1.6-2.5 BTU-in/hr-ft^2-°F (unfilled only)


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