Mitsubishi Chemical Advanced Materials Acetron™ / Ertacetal™ H POM-H Extruded Acetal

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Mitsubishi Chemical Advanced Materials Acetron™ / Ertacetal™ H POM-H Extruded Acetal
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Homopolymer, Unreinforced
Material Notes:	Acetron™ Polyoxymethylene POM-H / Ertacetal™ H Polyoxymethylene POM-H is a homopolymer acetal grade that offers superior mechanical strength, stiffness, hardness, and creep resistance.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.41 g/cc	1.41 g/cc	ASTM D792
Water Absorption at Saturation	0.900 %	0.900 %	ASTM D570 (17)

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	88.0	88.0	ASTM D785
Hardness, Shore D	81.0	81.0	ISO 868
Tensile Strength	78.0 MPa	11300 psi	ISO 527-1/-2 (7)
Flexural Strength	106 MPa	15400 psi	ISO 178 (12)
Compressive Yield Strength	29.0 MPa @Strain 1.00 %	4210 psi @Strain 1.00 %	ISO 604 (10)
	49.0 MPa @Strain 2.00 %	7110 psi @Strain 2.00 %	ISO 604 (10)
	85.0 MPa @Strain 5.00 %	12300 psi @Strain 5.00 %	ISO 604 (10)
Shear Strength	62.0 MPa	8990 psi	ASTM D732
Charpy Impact, Notched	1.00 J/cm²	4.76 ft-lb/in²	ISO 179-1/1eA

Electrical Properties	Metric	English	Comments
Surface Resistivity per Square	1.00e+14 ohm	1.00e+14 ohm	ANSI/ESD STM 11.11
Dielectric Constant	3.70 @Frequency 1.00e+6 Hz	3.70 @Frequency 1.00e+6 Hz	ASTM D150
Dielectric Strength	17.7 kV/mm	450 kV/in	ASTM D149
	20.0 kV/mm	508 kV/in	IEC 60243-1 (15)
Dissipation Factor	0.00500 @Frequency 1.00e+6 Hz	0.00500 @Frequency 1.00e+6 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	84.6 µm/m-°C	47.0 µin/in-°F	ASTM E-831 (TMA)
	95.0 µm/m-°C @Temperature 23.0 - 60.0 °C	52.8 µin/in-°F @Temperature 73.4 - 140 °F
	110 µm/m-°C @Temperature 23.0 - 100 °C	61.1 µin/in-°F @Temperature 73.4 - 212 °F
Thermal Conductivity	0.310 W/m-K	2.15 BTU-in/hr-ft²-°F
	0.360 W/m-K	2.50 BTU-in/hr-ft²-°F
Melting Point	175 °C	347 °F	ASTM D3418
Maximum Service Temperature, Air	87.8 °C	190 °F	Continuous Use Temperature in Air after 20000 hr
Deflection Temperature at 1.8 MPa (264 psi)	121 °C	250 °F	ASTM D648
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F

Chemical Resistance Properties	Metric	English	Comments
Acids, Strong (pH 1-3)	Limited	Limited
Acids, Weak	Limited	Limited
Alcohols	Acceptable	Acceptable
Alkalies, Strong (pH 11-14)	Acceptable	Acceptable
Alkalies, Weak	Acceptable	Acceptable
Chlorinated Solvents	Limited	Limited
Continuous Sunlight	Limited	Limited
Hot Water / Steam	Limited	Limited
Hydrocarbons - Aliphatic	Limited	Limited
Hydrocarbons - Aromatic	Limited	Limited
Inorganic Salt Solutions	Acceptable	Acceptable
Ketones, Esters	Unacceptable	Unacceptable

Descriptive Properties
ESd category	Insulative

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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