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POLYPENCO ACETAL

Polyacetal (POM)

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Co-polymer

Properties Test Methods Units Values
Density ASTM D-792
1.41
Tensile Strength at 23°C ASTM D-638 MPa 61
{kgf/cm2} {620}
Tensile Elongation at 23°C
(at break)
ASTM D-638 % 40
Tensile Modulus at 23°C ASTM D-638 MPa 2,824
{103kgf/cm2} {28.8}
Compressive Strength at 23°C
(10% Deformation)
ASTM D-695 MPa 103
{kgf/cm2} {1,050}
Compressive Modulus at 23°C ASTM D-695 MPa 2,700
{103kgf/cm2} {27.5}
Flexural Strength at 23°C ASTM D-790 MPa 89
{kgf/cm2} {910}
Flexural Modulus at 23°C ASTM D-790 MPa 2,589
{103kgf/cm2} {26.4}
Izod Impact (Notched) ASTM D-256 J/m 74
{kgf·cm/2.54cm} {19.1}
Rockwell Hardness ASTM D-785 R scale 119
Heat Deflection Temperature ASTM D-648 °C 110
1.820MPa
{18.6kgf/cm2}
0.445MPa ASTM D-648 °C 158
{4.6kgf/cm2}
Coefficient of Liner Thermal Expansion ASTM D-696 ×10-5/°C 9.0
Continuous Service Temperature
°C 95
Water Absorption Immersion ASTM D-570 %  
(24h in water) 0.22
(Saturation) 0.7
Volume Resistivity ASTM D-257 Ω·m >1012
{Ω·cm} {>1014}
Dielectric Strength ASTM D-149 kV/mm 20
Flammability UL94
HB*
* The data in the table shows the representive data, though they are not the guaranteed ones.
* POM-NC is available.

POM-Hyper

Properties Test Methods Units Values
Density ASTM D-792
1.41
Tensile Strength at 23°C ASTM D-638 MPa 61
{kgf/cm2} {620}
Tensile Elongation at 23°C
(at break)
ASTM D-638 % 40
Tensile Modulus at 23°C ASTM D-638 MPa 2,824
{103kgf/cm2} {28.8}
Compressive Strength at 23°C
(10% Deformation)
ASTM D-695 MPa 103
{kgf/cm2} {1,050}
Compressive Modulus at 23°C ASTM D-695 MPa 2,700
{103kgf/cm2} {27.5}
Flexural Strength at 23°C ASTM D-790 MPa 89
{kgf/cm2} {910}
Flexural Modulus at 23°C ASTM D-790 MPa 2,589
{103kgf/cm2} {26.4}
Izod Impact (Notched) ASTM D-256 J/m 74
{kgf·cm/2.54cm} {19.1}
Rockwell Hardness ASTM D-785 R scale 119
Heat Deflection Temperature ASTM D-648 °C 110
1.820MPa
{18.6kgf/cm2}
0.445MPa ASTM D-648 °C 158
{4.6kgf/cm2}
Coefficient of Liner Thermal Expansion ASTM D-696 ×10-5/°C 9.0
Continuous Service Temperature
°C 95
Water Absorption Immersion ASTM D-570 %  
(24h in water) 0.22
(Saturation) 0.7
Volume Resistivity ASTM D-257 Ω·m >1012
{Ω·cm} {>1014}
Dielectric Strength ASTM D-149 kV/mm 20
Flammability UL94
HB*
* The data in the table shows the representive data, though they are not the guaranteed ones.
* POM-NC(HY) is available.

Homo-polymer

Properties Test Methods Units Values
Density ASTM D-792
1.42
Tensile Strength at 23°C ASTM D-638 MPa 66
{kgf/cm2} {670}
Tensile Elongation at 23°C
(at break)
ASTM D-638 % 45
Tensile Modulus at 23°C ASTM D-638 MPa 2,910
{103kgf/cm2} {29.7}
Compressive Strength at 23°C
(10% Deformation)
ASTM D-695 MPa 113
{kgf/cm2} {1,150}
Compressive Modulus at 23°C ASTM D-695 MPa 2,900
{103kgf/cm2} {29.6}
Flexural Strength at 23°C ASTM D-790 MPa 94
{kgf/cm2} {960}
Flexural Modulus at 23°C ASTM D-790 MPa 2,790
{103kgf/cm2} {28.5}
Izod Impact (Notched) ASTM D-256 J/m 98
{kgf·cm/2.54cm} {25}
Rockwell Hardness ASTM D-785 R scale 120
Heat Deflection Temperature ASTM D-648 °C 120
1.820MPa
{18.6kgf/cm2}
0.445MPa ASTM D-648 °C 167
{4.6kgf/cm2}
Coefficient of Liner Thermal Expansion ASTM D-696 ×10-5/°C 8.5
Continuous Service Temperature
°C 85
Water Absorption Immersion ASTM D-570 %  
(24h in water) 0.22
(Saturation) 0.7
Volume Resistivity ASTM D-257 Ω·m >1012
{Ω·cm} {>1014}
Dielectric Strength ASTM D-149 kV/mm 20
Flammability UL94
HB
* The data in the table shows the representive data, though they are not the guaranteed ones.

POM-HL

Properties Test Methods Units Values
Density ASTM D-792
1.41
Tensile Strength at 23°C ASTM D-638 MPa 61
{kgf/cm2} {620}
Tensile Elongation at 23°C
(at break)
ASTM D-638 % 46
Tensile Modulus at 23°C ASTM D-638 MPa
{103kgf/cm2}
Compressive Strength at 23°C
(5% Deformation)
ASTM D-695 MPa 75
{kgf/cm2} {765}
Compressive Modulus at 23°C ASTM D-695 MPa 2,743
{103kgf/cm2} {28.0}
Flexural Strength at 23°C ASTM D-790 MPa 80.4
{kgf/cm2} {820}
Flexural Modulus at 23°C ASTM D-790 MPa 2,450
{103kgf/cm2} {25.0}
Izod Impact (Notched) ASTM D-256 J/m 59
{kgf·cm/2.54cm} {15.2}
Rockwell Hardness ASTM D-785 R scale 119
Heat Deflection Temperature ASTM D-648 °C 110
1.820MPa
{18.6kgf/cm2}
0.445MPa ASTM D-648 °C
{4.6kgf/cm2}
Coefficient of Liner Thermal Expansion ASTM D-696 ×10-5/°C 9.0
Continuous Service Temperature
°C 95
Water Absorption Immersion ASTM D-570 %  
(24h in water)
(Saturation)
Volume Resistivity ASTM D-257 Ω·m >1012
{Ω·cm} {>1014}
Dielectric Strength ASTM D-149 kV/mm
Flammability UL94
(HB)
* The data in the table shows the representive data, though they are not the guaranteed ones.