POM or Polyacetal or Delrin – are the commonly referred names for Polyoxymethylene, which offers more freedom in application engineering. The highly crystalline structure of POM offers an outstanding combination of physical properties:

Polyacetal sheets, plates  are among the strongest and stiffest of all thermoplastics. Polyacetal and Delrin plastic materials are characterized by good fatigue life, low moisture sensitivity, and high resistance to solvents and chemicals.

SPECIFICATIONS

Standard Thickness  (MM) 1mm to 200mm
Standard Length (MM) As per requirements
Standard width (MM) Upto 1000mm
Standard  Size (MM) 620×1000 , 620×2000 ,620×3000 , 1000×2000

FEATURES

  • Stiffness with toughness.
  • Excellent Fatigue resistance.
  • Outstanding resistance against automotive fuels, solvents and many neutral chemicals.
  • Excellent dimensional stability , machinability.
  • Very good electrical insulating properties.
  • High mechanical strength
  • Good creep resilience
  • High impact strength, even at low temperatures
  • Very good dimensional stability
  • Good sliding properties and wear resistance
  • Excellent Physiologically inert (most grades are suitable for food contact

APPLICATIONS

Gear wheels with small modulus, cams, heavily loaded bearings and rollers, bearing and gears with small clearances, valve seats, snap fit assemblies, dimensionally stable precision parts, and electrically insulating components.

TECHNICAL SPECIFICATIONS

PROPERTY ASTM POM-POLYACETAL
Specific gravity D792 1.41
P.S.I. Tensile Strength D638 8800
% Elongation D638 40.75
P.S.I. Comprehensive Strength D695 16000 (10% defl.)
Impact Strength(1/2×1/2 in. notched) D256 1.0-1.5 (1/2×1/2inbar)
Hardness Rockwell D785 M78-M80
Thermal expansion 105per 0C D696 8.5
Resistance to heat0C (Continuous) D696 800 C
1200 C