Acetal (POM)

Key Features
  • Excellent machining properties
  • Suitable for direct contact with food
  • Low moisture absorption
  • High strength, rigidity and toughness
  • Good impact strength including at low temperatures
  • Good creep resistance
  • Good resistance to hydrolysis
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Key Features
  • Excellent machining properties
  • Suitable for direct contact with food
  • Low moisture absorption
  • High strength, rigidity and toughness
  • Good impact strength including at low temperatures
  • Good creep resistance
  • Good resistance to hydrolysis

Overview

Kormax Acetal [technical name Polyoxymethylene] generally comes in either natural white or black colour. Material has low moisture absorption [stable in humid environments], excellent machinability and its FDA compliance allows for direct contact with food stuffs. The black has improved UV resistance and is the preferred choice for outdoor / applications in direct sunlight. It has good dimensional stability but should not be used in temperatures operating above 80ºC.

Material Profile

Metric Imperial
Profile Size Range Availability
Sheet 4″ see full size range In Stock
Rod 9.84" see full size range In Stock

Physical Properties

MaterialUnitAcetal
Tensile Strength at BreakN/mm265
Yield StrengthN/mm267
Elongation at Yield%22%
HardnessMPa125

Machining Allowances

SizeTolerances
Rod
5mm – 25mm>0.1mm – 1.1mm
26mm – 56mm>0.2mm – 1.3mm
60mm – 100mm>0.4mm – 2.2mm
110mm – 150mm>0.5mm – 4mm
160mm +>1.0mm – 6mm
Sheet
1mm – 10mm< 0.2mm – > 1.0mm
12mm – 25mm>0.3mm – 1.5mm
30mm – 50mm>0.5mm – 2.5mm
60mm – 100mm>0.1mm – 3.5mm
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