Celanese Hostaform® C 9021 10/1570 POM, Specialty

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Celanese Hostaform® C 9021 10/1570 POM, Specialty
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Chemical abbreviation according to ISO 1043-1: POM Information provided by Celanese
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Physical Properties	Metric	English	Comments

Density	1.42 g/cc	0.0513 lb/in³	ISO 1183
Water Absorption at Saturation	0.65 %	0.65 %	ISO 62
Linear Mold Shrinkage, Flow	0.020 cm/cm	0.020 in/in	ISO 294-4
Linear Mold Shrinkage, Transverse	0.018 cm/cm	0.018 in/in	ISO 294-4
Melt Flow	8.0 g/10 min @Load 2.16 kg, Temperature 190 °C	8.0 g/10 min @Load 4.76 lb, Temperature 374 °F	[cm3/10min]; ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	64.0 MPa	9280 psi	50mm/min; ISO 527-2/1A
Elongation at Break	25 %	25 %
Elongation at Yield	8.0 %	8.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	3.00 GPa	435 ksi	50mm/min; ISO 527-2/1A
Charpy Impact Unnotched	11.0 J/cm²	52.3 ft-lb/in²	ISO 179/1eU
	11.0 J/cm² @Temperature -30.0 °C	52.3 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eU
Charpy Impact, Notched	0.650 J/cm²	3.09 ft-lb/in²	ISO 179/1eA
	0.600 J/cm² @Temperature -30.0 °C	2.86 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA
Tensile Creep Modulus, 1 hour	2500 MPa	363000 psi	ISO 899-1
Tensile Creep Modulus, 1000 hours	1400 MPa	203000 psi	ISO 899-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+14 ohm	1.00e+14 ohm	IEC 60093
Dielectric Strength	28.0 kV/mm	711 kV/in	IEC 60243-1
Comparative Tracking Index	300 V	300 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	110 µm/m-°C	61.1 µin/in-°F	ISO 11359-2
Melting Point	167 °C	333 °F	10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	105 °C	221 °F	ISO 75-1, -2
Flammability, UL94	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in
	HB @Thickness 3.00 mm	HB @Thickness 0.118 in

Descriptive Properties
Injection molding	Yes
Processing conditions acc. ISO	9988

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