CENTROPLAST CENTRODAL TF Polyoxymethylene + PTFE

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CENTROPLAST CENTRODAL TF Polyoxymethylene + PTFE
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, PTFE Filled
Material Notes:	This material is high strength and high heat strength dimensional stability. Applications include racks and annular gears, dimensionally accurate structural components for pumps, and housings and transmission components subjected to high loads. Information provided by CENTROPLAST Engineering Plastics GMBH
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Physical Properties	Original Value	Comments

Density	1.52 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.20 %	in normal climate 23°C/50%RH; ISO 62
Water Absorption at Saturation	0.65 %	in water at 23°C; ISO 62

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	84 @Thickness 10.0 mm	ISO 2039-2
Ball Indentation Hardness	120 MPa	value at 30 sec.; ISO 2039-1
Tensile Strength, Yield	48.0 MPa	v = 50 mm/min; ISO 527-2
Elongation at Break	16 %	ISO 527-2
Tensile Modulus	2.50 GPa	ISO 527-2
Flexural Modulus	2.40 GPa	ISO 178
Charpy Impact Unnotched	6.00 J/cm²	ISO 179/1eU
Charpy Impact, Notched	0.400 J/cm²	ISO 179/1eA

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+15 ohm-cm	IEC 60093
Surface Resistance	1.00e+14 ohm	IEC 60093
Dielectric Constant	3.7 @Frequency 100 Hz	IEC 60250
	3.7 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	33.0 kV/mm	in transformer oil; IEC 60243-1
Dissipation Factor	0.0020 @Frequency 100 Hz	IEC 60250
	0.0080 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear	120 µm/m-°C @Temperature 20.0 °C	ISO 11359
Thermal Conductivity	0.250 W/m-K
Melting Point	166 °C	10K/min; ISO 3146
Maximum Service Temperature, Air	105 °C	Long Term
	150 °C	Short term
Deflection Temperature at 1.8 MPa (264 psi)	98.0 °C	ISO 75-2
Vicat Softening Point	145 °C	VST/B/50; ISO 306
Minimum Service Temperature, Air	-20.0 °C

Compliance Properties	Original Value	Comments
FDA	Yes	Food Compliance

Descriptive Properties
Food Compliance	yes	BGVV

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