Acetal vs. UHMW Machining

Comparison of Acetal and UHMW Property Values

Acetal Homopolymer Acetal Copolymer
0.25 0.2
10,000 9,800
420 370,000
6.8 6.1
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Material
Water Absorption Rating
Tensile Strength
Flexural Modulus
Coefficient of Linear Thermal Expansion
Dielectric Strength
UHMW - PE
slight
3,100
110,000
11.1
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Material Properties

  • Low moisture absorption
  • High mechanical strength and rigidity
  • Machinability
  • Good chemical resistance
  • Good dimensional stability
  • High impact strength
  • Machinability
  • Low coefficient of friction
  • Self-lubricating
  • Chemical resistant
  • Zero water absorption
  • High abrasion resistance

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