Angst+Pfister APSOplast® VESPEL PI SP21 PI + 15% graphite

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Angst+Pfister APSOplast® VESPEL PI SP21 PI + 15% graphite
Categories:	Polymer; Thermoplastic; Polyimide, Thermoplastic; Thermoplastic Polyimide, Graphite Filled
Material Notes:	The 15% graphite content improves the coefficient of friction, wear resistance, and heat ageing. This type is suitable for lubricated and non-lubricated applications which require low friction and wear properties. Information provided by Angst + Pfister
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Physical Properties	Metric	English	Comments

Density	1.51 g/cc	0.0546 lb/in³	DIN EN ISO 1183-1
Moisture Absorption	1.10 %	1.10 %	at saturation in standardized climate; DIN EN ISO 62

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	66.0 MPa	9570 psi	ASTM D 1708
Elongation at Break	4.5 %	4.5 %	ASTM D 1708
Modulus of Elasticity	3.79 GPa	550 ksi	ASTM D 790
Izod Impact, Notched	0.427 J/cm	0.800 ft-lb/in	ASTM D 256
Izod Impact, Unnotched	3.20 J/cm	5.99 ft-lb/in	ASTM D 256
Coefficient of Friction	0.30	0.30	p=0.05 N/mm2, v=0.6 m/s, against hardened and polished steel

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+12 - 1.00e+13 ohm-cm	1.00e+12 - 1.00e+13 ohm-cm	ASTM D 257
Dielectric Constant	13.53 @Frequency 100 Hz	13.53 @Frequency 100 Hz	ASTM D 150
Dielectric Strength	9.84 kV/mm	250 kV/in	ASTM D 149
Dielectric Loss Index	0.0053 @Frequency 100 Hz	0.0053 @Frequency 100 Hz	ASTM D 150

Thermal Properties	Metric	English	Comments
CTE, linear	49.0 µm/m-°C @Temperature 23.0 - 60.0 °C	27.2 µin/in-°F @Temperature 73.4 - 140 °F
Thermal Conductivity	0.870 W/m-K	6.04 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	300 °C	572 °F	long term
	360 °C	680 °F	short term
Deflection Temperature at 1.8 MPa (264 psi)	360 °C	680 °F	DIN EN ISO 75 / A
Flammability, UL94	V-0	V-0

Descriptive Properties
Color	anthracite

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PANGP071 / 250569

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