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Acetal (Polyoxymethylene, POM)

Acetal, also known as POM (Polyoxymethylene), is a semi-crystalline engineering thermoplastic material, with a continuous use temperature range of up to 180° F (82° C). Acetal offers high strength and stiffness coupled with high dimensional stability and ease of machining.

Benefits of Acetal (Polyoxymethylene, POM)

<p>Strength/Rigidity</p>

Strength/Rigidity

<p>Dimensional Stability</p>

Dimensional Stability

<p>Low Moisture Absorption</p>

Low Moisture Absorption

<p>Wear Resistant</p>

Wear Resistant

Product Options

Colors

Sheet and Rod: Natural, Black
Tube: Natural, Black

Grades
  • Homopolymer and Copolymer
  • General Purpose
  • Unfilled
  • Glass Filled
  • PTFE Filled
  • Static Dissipative
  • Metal Detectable
Sizes
Shape
Sizes

Dimensions: 12″ x 12″, 12″ x 24″, 12″ x 48″, 24″ x 24″, 24″ x 48″, 48″ x 96″, 48″ x 120″
Thickness: 0.030″ – 6″

Round
Diameter: 0.125″ – 14″

Hex
Diameter: 0.25″ – 1.125″

Square
Width: 0.375″ – 1″

Outside Diameter: 3″ – 8.5″

Suppliers / Brands

Physical Properties

Units ASTM Test Copolymer ACETAL Homopolymer ACETAL
Tensile strength @ break @ 73°F psi D638 4,500 – 9,690 7,000 – 9,800
Flexural modulus @ 73°F psi D790 264,000 – 434,000 305,000 – 464,000
Izod impact (notched) ft-lbs/in of notch D256 264,000 – 434,000 0.77 – 2.3
Deflection Temperature Under Load @ 264 psi Unannealed ft-lbs/in of notch D658 208 – 230 199 – 320
Coefficient of linear thermal expansion (CLTE) (in/in F) D696 7.2E-6 to 7.4E-5 5.4E-5 to 5.6E-5
Compressive strength psi D695 4,400 – 16,000 4,400 – 16,000
Coefficient of friction D1894 0.005 – 0.46 0.070 – 0.25
Taber Abrasion Resistance mg D1044 13.8 – 14.0 12.8 – 13.1
Water absorption – 24 hours – 1/8″ thick 0.036 – 0.11% D570 0.11 – 0.27 0.16 – 0.26
Compressive strength psi D695 4,400 – 16,000 4,400 – 16,000

* Technical Data is provided courtesy of UL Prospector (www.ulprospector.com) and IAPD (www.IAPD.org).

Data is to be considered representative and is provided for guidance only. All product performance must be verified by the user under actual application conditions.