Murtfeldt Muralen® Polyethylene

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Murtfeldt Muralen® Polyethylene
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); UHMW PE (Ultra High Molecular Weight PE)
Material Notes:	Muralen® is based on high molecular weight polyethylene (PE-HMW) and is ideally suited for use in applications that require the generally impressive material properties of polyethylene. Because of its great cut, impact, and shock resistance, this material is often used to make underlays for cutting and punching machines and for ram guards. Special Properties: • High cut resistance • Good shock and impact absorption • Good resistance to chemicals • Good anti-adhesion properties • Approved for use in the food industry (EU and FDA) • Good weldability Information provided by Murtfeldt Kunststoffe GmbH & Co. KG.
Key Words:	PE-HMW
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Physical Properties	Original Value	Comments

Density	<= 0.950 g/cc	ISO 1183
Moisture Absorption at Equilibrium	<= 0.10 %	ISO 62
Water Absorption at Saturation	<= 0.10 %	ISO 62
Molecular Weight	500000 g/mol

Mechanical Properties	Original Value	Comments
Hardness, Shore D	66	DIN 53505
Ball Indentation Hardness	45.0 MPa
Tensile Strength	28.0 MPa	ISO 527
Tensile Strength, Yield	20.0 MPa	ISO 527
Elongation at Break	660 %	ISO 527
Modulus of Elasticity	1.10 GPa
Compressive Yield Strength	9.00 MPa @Strain 1 %	ISO 604
	15.0 MPa @Strain 2 %	ISO 604
	23.0 MPa @Strain 5.0 %	ISO 604
Charpy Impact Unnotched	NB	ISO 179
Charpy Impact, Notched	>= 25.0 kJ/m²	ISO 179
Coefficient of Friction, Dynamic	0.18
Sand Slurry	350	value in %

Electrical Properties	Original Value	Comments
Electrical Resistivity	>= 1.00e+14 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+13 ohm	IEC 60093
Dielectric Constant	2.4 @Frequency 100 Hz	IEC 60250
	2.4 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	<= 45.0 kV/mm	IEC 60243
Dielectric Loss Index	0.00020 @Frequency 100 Hz	IEC 60250
	0.00020 @Frequency 1e+6 Hz	IEC 60250

Thermal Properties	Original Value	Comments
CTE, linear	200 µm/m-°C @Temperature 23.0 - 60.0 °C
Thermal Conductivity	0.400 W/m-K	ISO 52612
Melting Point	130 - 135 °C	ISO 3146
Maximum Service Temperature, Air	80.0 °C @Time 1.80e+7 sec
Minimum Service Temperature, Air	-100 °C
Glass Transition Temp, Tg	-120 °C
Flammability, UL94	HB

Compliance Properties	Original Value	Comments
European Food 1935/2004	Yes
FDA	Yes

Descriptive Properties
Color	Natural

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PMURT916 / 156563

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