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DuPont™ Vespel® SCP-5050

DuPont™ Vespel® SCP-5050 is Widely Used For:

  • Semiconductor and material handling machinery
  • Chip test sockets
  • Wafer clamping rings
  • Valve seats and sealing applications
  • Spline couplings
  • High performance bearings and bushings
  • Locking fasteners for aerospace
  • Pivot bushings on unison ring

Performance Characteristics:

  • Long term performance at temperatures
    up to 260°C (500°F)
  • Outstanding sealing characteristics when mated against metals
  • Excellent unlubricated bearing and wear properties

Common Brands:

  • DuPont™ Vespel®
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Authorized Distributor of DuPont™ Vespel Polyimide
Download Vespel for Valves White Paper
Military and Aerospace Spline Couplings Machined From DuPont Vespel Parts & Shapes White Paper

DuPont™ Vespel® SCP-5050

For high temperature performance and wear resistance

DuPont™ Vespel® SCP-5050 bearing and wear grade has extremely low COF, low CTE, and enhanced thermal stability. It's composition is designed to offer a coefficient of thermal expansion similar to steel with excellent chemical resistance.

Shop for DuPont™ Vespel® SCP-5050
Learn more about DuPont™ Vespel
 

 

STANDARD SIZES
ROD Outside Diameter:
0.250 in – 2.50 in
OPTIONS AVAILABLE
COLOR Black
GRADES Bearing Grade, Graphite-Filled

Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Vespel® SCP-5050 is also available in bar.

 

Typical Properties for DuPont™ Vespel® SCP-5050 Polyimide
  ASTM
Method		 Units SCP-5050
Graphite Bearing Grade – High fill
Mechanical
Tensile strength
23°C (73°F)		 D1708 / D638 MPa (kpsi) 72
(10.5)
Tensile strength
260°C (500°F)		 D1708 / D638 MPa (kpsi) 39
(5.6)
Elongation at break
23°C (73°F)		 D1708 / D638 % 2.5
Elongation at break
260°C (500°F)		 D1708 / D638 % 5.3
Flexural modulus
23°C (73°F)		 D790 MPa (kpsi) 7,790
(1130)
Flexural modulus
260°C (500°F)		 D790 MPa (kpsi) 5,100
(740)
Compressive stress at
10% strain, 23°C (73°F)		 D695 MPa (kpsi) 172
(25)
Deformation under
13.8 MPa (2,000 psi) load		 D621 % 0.03
Friction      
Coefficient of friction at
PV = .875 MPa m/s
(25,000 psi-ft/min)*		     0.12
Coefficient of friction at 
PV = 3.5 MPa m/s
(25,000 psi-ft/min)*		     0.08
Static coefficient
of friction in air*		      
PV limit (unlubricated)**   MPa-m/s
(kpsi ft/min)		  
Other Properties      
Coefficient of
thermal expansion
23–300°C (73–572°F)		 E831 µm/m/K
(10-6 in/in-°F)		 29 (16)
Hardness D785 Rockwell E 63
Water absorption
24 hr at 23°C (73°F)		 D570 % 0.04

*Versus carbon steel, steady state, unlubricated, in air, thrust bearing. **PV limits for any material vary with different combinations of pressure and velocity as well as other conditions.

Need more information about this material? Use our interactive plastic properties table

The information set forth herein is furnished free of charge, is based on technical data that DuPont believes to be reliable, and represents typical values that fall within the normal range of properties. This information relates only to the specific material designated and may not be valid for such material used in combination with other materials or in other processes. It is intended for use by persons having technical skill, at their own discretion and risk. This information should not be used to establish specification limits nor used alone as the basis of design. Handling precaution information is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards and comply with applicable law. Since conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any product, evaluation under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on patents.

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