Vespel® SP-211

Vespel® SP-211

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® SP-211 parts and shapes have a low coefficient of friction over a wide range of operating conditions. It exhibits low wear rates up to 300 °C (572 °F). SP-211 is a filled polymer.

 
 
 
 
 
 

Available Sizes

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

Electrical Property

Property Value Unit Method
Dissipation Factor at 102 Hz at 104 Hz at 106 Hz D150
Dielectric Strength, Short Time 2 mm Thick D149 MV/m
Volume Resistivity D257 Ω·m
Surface Resistivity D257
Dielectric Constant at 102 Hz at 104 Hz at 106 Hz D150

Other Property

Property Value Unit Method
Oxygen Index D2863 %
Specific Gravity D792 1.55
Water Absorption 24 h 48 h Equilibrium, 50% RH D570 % 0.21 0.49 —

Thermal Property

Property Value Unit Method
Specific Heat J/kg/°C
Deformation Under 14 MPa Load D-621 % 0.13
Thermal Conductivity W/m·°C 0.76
Deflection Temperature at 2 MPa D-648 °C
Coefficient of Linear Expansion D-696 µm/m/°C (in/in/°F) 54 (30)

Mechanical Property

Property Value Unit Method
Flexural Strength D-790 MPa (kpsi) 68.9 (10.0) 34.5 (5.0)
Poisson’s Ratio
Flexural Modulus D-790 MPa (kpsi) 3102 (450) 1379 (200)
Compressive Stress at 1% strain at 10% strain at 0.1% offset D-695 MPa (kpsi) 20.7 (3.0) 102.0 (14.8) 37.2 (5.4)
Axial Fatigue, Endurance Limit at 103 cycles at 107 cycles MPa (kpsi)
Shear Strength D-732 MPa (kpsi)
Strain at Break D-1708 or E8 † % 3.5 3.0
Izod Unotched Impact Strength D-256 J/m
Compressive Modulus D-695 MPa (kpsi) 2068 (300)
Tensile Strength D-1708 or E8 † MPa (kpsi) 44.8 (6.5) 24.1 (3.5)
Izod Notched Impact Strength D-256 J/m
Flexural Fatigue, Endurance Limit at 103 cycles at 107 cycles MPa (kpsi)

Wear and Friction Property

Property Value Unit Method
Wear Rate†† m/s x 10-10 4.9
In Vacuum
Static in Air 0.2
Friction Coefficient** PV = 0.875 MPa·m/s PV = 3.5 MPa·m/s 0.12 0.08
 
 
 
 
 
 
Technical Resources
View by:
To access secured content from DuPont Please Sign In or Sign Up below