Murtfeldt Murytal® C Blue [FS] Acetal Copolymer

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Murtfeldt Murytal® C Blue [FS] Acetal Copolymer
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced
Material Notes:	Thanks to their extremely low absorption of moisture, Murytal® materials are ideally suited for use as electronic isolation components. A fine crystalline structure and high yield strength mean that Murytal® C has a high ability to regain its original form. Special Properties: • High rigidity • Excellent ability to regain its form • Extremely good electric isolation properties • Practically no moisture absorption • Good resistance to chemicals (pH 4 – 13) • Approved for use in the food industry (EU and FDA) • Extremely good machinability • Hydrolysis resistant to 80°C Information provided by Murtfeldt Kunststoffe GmbH & Co. KG.
Key Words:	POM-C
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Physical Properties	Metric	English	Comments

Density	1.41 g/cc	0.0509 lb/in³	ISO 1183-1
Moisture Absorption at Equilibrium	0.10 % @Temperature 23.0 °C	0.10 % @Temperature 73.4 °F	50% RH
Water Absorption at Saturation	0.90 % @Temperature 23.0 °C	0.90 % @Temperature 73.4 °F

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	84	84	dry; ISO 2039-2
Ball Indentation Hardness	140 MPa	20300 psi	dry; ISO 2039-1
Tensile Strength, Yield	70.0 MPa	10200 psi	dry; ISO 527-1
Elongation at Break	>= 15 %	>= 15 %	dry; ISO 527-1
Creep Strength	13.0 MPa @Time 3.60e+6 sec	1890 psi @Time 1000 hour	stress leading to 1% elongation; dry; ISO 899-1
	13.0 MPa @Time 3.60e+6 sec	1890 psi @Time 1000 hour	stress leading to 1% elongation; 50% RH; ISO 899-1
Modulus of Elasticity	3.10 GPa	450 ksi	dry
Compressive Yield Strength	19.0 MPa @Strain 1 %	2760 psi @Strain 1 %	dry; ISO 604
	35.0 MPa @Strain 2 %	5080 psi @Strain 2 %	dry; ISO 604
	67.0 MPa @Strain 5.0 %	9720 psi @Strain 5.0 %	dry; ISO 604
Charpy Impact Unnotched	15.0 J/cm²	71.4 ft-lb/in²	dry; ISO 179-1/1eU
Charpy Impact, Notched	0.700 J/cm²	3.33 ft-lb/in²	dry; ISO 179-1/1eA
Coefficient of Friction, Dynamic	0.30	0.30
Sand Slurry	8.9	8.9	µm/km

Electrical Properties	Metric	English	Comments
Electrical Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm	dry; IEC 60093
Surface Resistance	>= 1.00e+13 ohm	>= 1.00e+13 ohm	dry; IEC 60093
Dielectric Constant	3.8 @Frequency 1e+6 Hz	3.8 @Frequency 1e+6 Hz	dry; IEC 60250
Dielectric Strength	16.5 kV/mm	419 kV/in	dry; IEC 60243-1
Dielectric Loss Index	0.0050 @Frequency 100 Hz	0.0050 @Frequency 100 Hz	dry; IEC 60250

Thermal Properties	Metric	English	Comments
CTE, linear	92.0 µm/m-°C @Temperature 23.0 - 60.0 °C	51.1 µin/in-°F @Temperature 73.4 - 140 °F
Thermal Conductivity	0.310 W/m-K	2.15 BTU-in/hr-ft²-°F
Melting Point	170 °C	338 °F	ISO 11357-1
Maximum Service Temperature, Air	90.0 °C @Time 1.80e+7 sec	194 °F @Time 5000 hour
	140 °C @Time <=86400 sec	284 °F @Time <=24.0 hour
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F
Glass Transition Temp, Tg	-50.0 °C	-58.0 °F	ISO 11357-1
Flammability, UL94	HB	HB

Compliance Properties	Metric	English	Comments
European Food 1935/2004	Yes	Yes
FDA	Yes	Yes

Descriptive Properties
Color	Gentian Blue

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