Delrin vs. Ryton Machining

Comparison of Delrin and Ryton 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
Ryton
0.02
5,000
1,000,000
2.5
385

Material Properties

  • Low moisture absorption
  • High mechanical strength and rigidity
  • Machinability
  • Excellent chemical resistance
  • Almost no moisture absorption
  • Machines to tight tolerances
  • Inert to steam, strong bases, fuels and acids
  • Very low coefficient of linear thermal expansion
  • Inherently flame retardant
  • Dimensional stability
  • High mechanical strength
  • High strength-to-weight ratio

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