Vespel® SCP-50094

Vespel® S polyimide family of parts and shapes with differing sets of attributes The Vespel® S Family of products are highly durable polyimides and are used in demanding applications where exceptional thermal resistance, low wear and/or low friction, strength and impact resistance are desired.

DuPont™ Vespel® SCP-50094 is a proprietary polymer. It is designed for demanding applications that require extensive toughness and chemical resistance.

Applications

For seals, insulators and more An unfilled grade in the SCP series, Vespel® SCP-5000 uses the same base polyimide as SCP-50094. It delivers major benefits in applications such as insulators requiring dielectric properties or seals and valve seats needing enhanced high-temperature performance and chemical compatibility. To learn more, please visit vespel.dupont.com or contact the nearest DuPont location listed here.
Jet engines Leading global manufacturers use Vespel® SCP-50094 parts in engine applications, upgrading the wear performance of traditional polyimide parts and replacing metal parts in high temperature environments where traditional polyimides have not been used because of previous temperature limitations. Typical applications include wear pads and strips, thrust washers, bushings, bearings, bumpers and more.
Other aerospace uses The outstanding wear performance of Vespel® SCP parts can also provide benefits where temperatures are less severe than within the engines.
Other industries Vespel® SCP-50094 parts are delivering cost and performance benefits in vehicles, as well as industrial equipment requiring higher temperature capabilities

Features & benefits

Stiff when hot	Stiff when hot
Superior heat stability	Superior heat stability
Extended part life	Vespel® SCP-50094 parts have superior thermal oxidative stability and wear resistance at elevated temperature and can last longer than traditional polyimides in high temperature wear environments.
Metal-like dimensional stability	Metal-like dimensional stability
Reduced costs	Replacing metal with Vespel® SCP-50094 parts can save on both initial and lifetime costs. • Lower initial cost than hard-faced or specially treated metallic for parts like bushings. • Less wear on mating high-value components—jet engine stators for example—can sharply cut maintenance costs.
Lighter weight	Vespel® SCP-50094 parts allow you to save weight by replacing metal in more high temperature environments. They are much stiffer than traditional filled polyimides at elevated temperature. Their low coefficient of thermal expansion allows closer fits and easier-to-manage tolerance stackups for your designs.

Available Sizes

Gross Weight	Net Weight	Carton Each	Carton Length	Carton Weight	Carton Height
			0	0	0

Electrical Property

Property	Value	Unit	Method
Dielectric Strength	ASTM D-149	Volts/mil	413
Volume Resistivity	ASTM D-257	Ohm-cm (Ohm-in)	2.18 x 1016 (8.57 x 1015)
	ASTM D-257	Ohm-cm (Ohm-in	2.18 x 1016 (8.57 x 1015)
Surface Resistivity	ASTM D-257	Ohm/sq	1.56 x 1017 (6.15 x 1016)
Dielectric Constant, 102 Hz 104 Hz 106 Hz	ASTM D-150	—	5.5 5.4 5.4
Dissipation Factor, 102 Hz 104 Hz 106 Hz	ASTM D-150	—	0.002 0.005 0.002

Other Property

Property	Value	Unit	Method
Water Absorption	ASTM D-570	% weight change	0.96 0.06
Specific Gravity	ASTM D-792	—	1.44 1.50

Thermal Property

Property	Value	Unit	Method
Heat Deflection Temp in Tin Bismuth, Parallel Perpendicular	ASTM D-648	°C (°F)	334 (634) 336 (637)
Coefficient of Thermal Expansion Parallel Perpendicular	ASTM E-831	m/m·°C (in/in·°F) m/m·°C or m/m·K (in/in·°F)	60.1 x 10–6 (33.4 x 10–6) 34.1 x 10–6 (18.9 x 10–6) 42.7 x 10–6 (23.7 x 10–6)
Thermal Conductivity	ASTM F-433	W/mK (Btu/hr in °F)	0.39 (0.02) 0.40 (0.02) 0.41 (0.02) 0.41 (0.02) 0.41 (0.02) 0.59 (0.03) 0.66 (0.03) 0.58 (0.03)
	ASTM F-433	W/m-K (Btu/hr·in °F)	0.59 (0.03) 0.66 (0.03) 0.58 (0.03) 0.39 (0.02) 0.40 (0.02) 0.41 (0.02) 0.41 (0.02) 0.41 (0.02)
Specific Heat	DSC ASTME-1269	J/kg·°C (Btu/lb·°F)	8.96 x 10–5 (0.214) 9.2 x 105 (0.22)
	ASTM E-1269, DSC	J/kg·°C (Btu/lb·°F)	9.2 x 105(0.22) 8.96 x 10-5 (0.214)
Coefficent of Thermal Expansion Parallel Perpendicular	ASTM E-831	m/m·°C or m/m·K (in/in·°F)	42.7 x 10–6 (23.7 x 10–6) 60.1 x 10–6 (33.4 x 10–6) 34.1 x 10–6 (18.9 x 10–6)

Wear Property

Property	Value	Unit	Method
Coefficient of Friction, Unlubricated, Air 0.88 (25K) PV 3.50 (100K) PV 10.50 (300K) PV	Falex	—	0.253 0.064 0.084 0.25 0.07 0.11
Wear Factor, Unlubricated, Air 0.88 (25K) PV 3.50 (100K) PV 10.50 (300K) PV	Falex	mm-sec/MPa-m-hr (in3 -min/ft-lb-hr)	1.0 x 10–3 (13 x 10–10)
	Falex	mm-sec/MPa-m-hr (in3 -min/ft-lb-hr)	1.7 x 10–3

Mechanical Property

Property	Value	Unit	Method
Tensile Elongation	ASTM D-638 E-8 Specimen ASTM D-638 D-1708 Specimen	%	2.1 4.6 4.3 13
	ASTM D-638 D-1708 Specimen,ASTM D-638 E-8 Specimen	%	4.3 13 2.1 4.6
Young’s Modulus	ASTM D-638 D-1708 Specimen,ASTM D-638 E-8 Specimen	MPa (kpsi)	4,140 (600) 2,350 (340) 6490 (941) 3720 (539)
	ASTM D-638 E-8 Specimen ASTM D-638 D-1708 Specimen	MPa (kpsi)	6490 (941) 3720 (539) 4,140 (600) 2,350 (340)
Deformation Under Load after 24 hours	ASTM D-621	% deformation	0.05
Flexural Strength	ASTM D-790	MPa (kpsi)	109 (15.8) 69 (10.0) 200 (29) 96 (14)
Rockwell ―E‖ Hardness	ASTM D-785	—	91 70.4
Deformation Under Load, 10 min Permanent Deformation	ASTM D-621	%	0.03 0.04
Flexural Modulus	ASTM D-790	MPa (kpsi)	5170 (750) 2700 (392) 6,370 (923) 3,540 (514)
Rockwell ―"E" Hardness	ASTM D-785	—	70.4 91
Deformation Under Load, 10 min Permanent Deformation	ASTM D-621	%	0.03 0.04
Compressive Strength	ASTM D-695	MPa (kpsi)	170 (24.7) 77 (11.2) 385 (56) 450 (65)
Compressive Strain, Ultimate	ASTM D-695	% MPa (kpsi)	18 31 41 63
	ASTM D-695	MPa (kpsi),%	41 63 18 31
Tensile Strength	ASTM D-638 E-8 Specimen ASTM D-638 D-1708 Specimen	MPa (kpsi)	88 (12.8) 45 (6.6) 124 (18.0) 55 (8.0)
Compressive Creep, 10 hr 100 hr 1000 hr	ASTM D-2990	%	0.03 0.05 0.07 0.04 0.06 0.09
Deformation Under Load after 24 hours	ASTM D-621	% deformation	0.05
Compressive Stress at 10% Strain	ASTM D-695	MPa (kpsi)	168 (24.4) 64 (9.3) 220 (31.9) 81 (11.7)

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