Extrusion Molded Products

  • Empty
  • Empty
  • Empty
  • Empty

TPS® POM

<Polyacetal>

Balanced Mechanical Characteristics

POM is a crystalline plastic with balanced mechanical characteristics. It is an engineering plastic that has extremely superior fatigue resistance and good creep resistance. It also has superior wear resistance, chemical resistance, creep resistance and dimension stability. However, because it contains much oxygen in its molecule, it is difficult to make it non-combustible, and its weathering resistance is not very high.

Uses

  • Semiconductor manufacturing equipment components
  • Electronic devices components
  • Food devices components
  • General industrial devices components

Characteristics

  • POM is an excellent material with superior physical properties, low cost and good cutting processability.
  • With respect to chemical resistance, POM is resistant to organic solvents and bases, but is affected by strong acids.
  • POM is available in a wide variety of forms, ranging from rods (including hollow and super-rods) in diameters of 3 mm to 250 mm to sheets with thicknesses of 0.2 mm to 100 mm and plates.
  • The recommended grade for high slide wearing resistance is the POM (NW-02).

Grade List

Grade Characteristics
POM (NC), (BK) Standard grade (Natural color, Black)
POM (NC), (BK)Super Low-warp grade (Natural color, Black)
POM (NW-02) Sliding grade
POM (G25NC) Fiberglass reinforced grade
POM 130-AE3 AE grade (conductive)

* Refer to the Products Catalogue on pages 37 through 40 for product specifications.

Properties Data

Category Property Unit Test Method ISO TPS® POM
NC・BK G25 NW-02 130-AE3
Mechanical properties Tensile strength MPa 527-1,2 57 136 52 59
Tensile elasticity % 40.0 3.0 20.0 16.0
Bending strength MPa 178 76 200 72 87
Bending elasticity GPa 2.2 7.9 2.2 2.4
Poisson’s ratio - - 0.35 0.38 0.35 -
Charpy impact strength (notched) KJ/m2 179/1eA 8.5 8.0 5.9 5.4
Rockwell hardness - - M78 M79 - -
Physical properties Density (23°C) g/cm3 1183 1.41 1.59 1.36 1.42
Water absorption (23°C, 24 Hrs) % - 0.22 0.29 - -
Linear expansion coefficient ×10-5
/°C
11359-2 10 3~9 11 -
Flammability (UL) - UL94 HB
(0.75mm)
HB
(0.81mm)
HB
(0.83mm)
HB Equivarent
Thermal properties Deflection temperature under load (1.82 MPa) °C 75-1,2 110 162 85 -
Continuous use temperature °C - 100 105 - -
Glass transition temperature °C - -60 - - -
Melting point °C - 163 165 165 -
Electrical properties Dielectric strength (3mm) kV/mm IEC60243-1 19.0 24.0 20.0 -
Surface resistance Ω IEC60093 1016 1016 1015 101~6
Volume resistance Ω・cm - 1014 1014 101~6
Permittivity 106Hz - IEC60250 - - - -
Dielectric tangent 106Hz - IEC60250 - - - -
Certified per the Food Sanitation Act - - -
  • * The values given above for the properties are representative values given by the manufacturers of the raw materials, and are not guaranteed values for the product.
  • * The cells with no values given (-) indicate that useful data is not available or cannot be obtained at this time.
  • * AE stands for anti-electrostatic, and is an abbreviation for our anti-electrostatic grade material.

Search by property