GEHR Plastics PE-HD Polyethylene HDPE

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GEHR Plastics PE-HD Polyethylene HDPE
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE)
Material Notes:	Polyethylene has a good chemical resistance against almost all acids and bases, detergents and hot water. PE has good insulation properties and is easy to weld. The operating temperature is from -50°C to 90°C. Properties: low density high toughness high elongation very good electrical and dielectric properties very low water absorption low steam permeability high chemical resistance good protection against stress cracking food safe soft surface HF welding not recommended natural color is not weather resistance Applications Transport containers pumps and valve parts parts used in tank construction components with medical applications gaskets sliding profiles components for the food industry
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Physical Properties	Metric	English	Comments

Specific Gravity	0.950 g/cc	0.950 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.010 %	0.010 %	ISO 62
Water Absorption at Saturation	0.50 %	0.50 %	ISO 62

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	69	69	ISO 868
Tensile Strength at Break	5.00 MPa	725 psi	ISO 527
Tensile Strength, Yield	27.0 MPa	3920 psi	ISO 527
Elongation at Break	>= 70 %	>= 70 %	ISO 527
Elongation at Yield	18 %	18 %	ISO 527
Modulus of Elasticity	1.04 GPa	151 ksi	ISO 527
Flexural Strength	22.0 MPa	3190 psi	ISO 178
Charpy Impact Unnotched	NB	NB	ISO 179
Charpy Impact, Notched	2.00 J/cm²	9.52 ft-lb/in²	ISO 179

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+13 ohm	>= 1.00e+13 ohm	IEC 60093
Dielectric Constant	2.35 @Frequency 1e+6 Hz	2.35 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	45.0 kV/mm	1140 kV/in	IEC 60243-1
Dielectric Loss Index	0.00030 @Frequency 1e+6 Hz	0.00030 @Frequency 1e+6 Hz	IEC 60250

Thermal Properties	Metric	English	Comments
CTE, linear	150 µm/m-°C	83.3 µin/in-°F	ISO 11359
Thermal Conductivity	0.420 W/m-K @Temperature 20.0 °C	2.91 BTU-in/hr-ft²-°F @Temperature 68.0 °F	ISO 22007-4
Melting Point	130 °C	266 °F	DIN EN ISO 3146
Maximum Service Temperature, Air	90.0 °C	194 °F	UL 746B
Deflection Temperature at 0.46 MPa (66 psi)	69.0 °C	156 °F	ISO 75
Vicat Softening Point	80.0 °C	176 °F	VST/B/50; ISO 306
	125 °C	257 °F	VST/A/50; ISO 306
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F	UL 746B
Glass Transition Temp, Tg	-110 °C	-166 °F	DIN EN ISO 3146
Flammability, UL94	HB	HB	UL 94
Oxygen Index	18 %	18 %	ASTM D2863

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	Physiological indifference

Descriptive Properties
Acid Resistance	yes
Aromatic Resistance	limited
Bondability	yes
Chemical Resistance	DIN 8075
CKW Resistance	no
Color	natural
Hydrocarbonate Resistance	yes
Hydroxide Resistance	yes
Ketone Resistance	limited
Physiological indifference	yes, EEC
Resistance Against Hot Water	limited
UV Stabilization	limited

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PGEHR009 / 79846

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