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Rulon Bearings

Seals Eastern 7202 Nitrile Rubber
Categories: Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber

Material Notes: Nitrile for oil & gas service

Information provided by Seals Eastern, Inc.

Key Words: NBR
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.19 g/cc1.19 g/ccASTM D297, 15
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A >= 65>= 65ASTM D2240, Type A
 7070AVG; ASTM D2240, Type A
 71
@Treatment Temp. 100 °C,
Time 252000 sec
71
@Treatment Temp. 212 °F,
Time 70.0 hour
After Dry Heat Aging; ASTM D865
 73
@Treatment Temp. 100 °C,
Time 605000 sec
73
@Treatment Temp. 212 °F,
Time 168 hour
After Dry Heat Aging; ASTM D865
 74
@Treatment Temp. 100 °C,
Time 1.21e+6 sec
74
@Treatment Temp. 212 °F,
Time 336 hour
After Dry Heat Aging; ASTM D865
 77
@Treatment Temp. 100 °C,
Time 3.60e+6 sec
77
@Treatment Temp. 212 °F,
Time 1000 hour
After Dry Heat Aging; ASTM D865
Tensile Strength at Break >= 17.15 MPa>= 2487 psiASTM D412 Method A
 21.28 MPa3086 psiAVG; ASTM D412 Method A
 22.00 MPa
@Treatment Temp. 100 °C,
Time 252000 sec
3191 psi
@Treatment Temp. 212 °F,
Time 70.0 hour
After Dry Heat Aging; ASTM D865
 22.92 MPa
@Treatment Temp. 100 °C,
Time 1.21e+6 sec
3324 psi
@Treatment Temp. 212 °F,
Time 336 hour
After Dry Heat Aging; ASTM D865
 23.06 MPa
@Treatment Temp. 100 °C,
Time 3.60e+6 sec
3345 psi
@Treatment Temp. 212 °F,
Time 1000 hour
After Dry Heat Aging; ASTM D865
 23.2 MPa
@Treatment Temp. 100 °C,
Time 605000 sec
3370 psi
@Treatment Temp. 212 °F,
Time 168 hour
After Dry Heat Aging; ASTM D865
Tensile Stress at Strain  >= 1.01 MPa
@Strain 50 %
>= 146 psi
@Strain 50 %
Minimum; ASTM D412 Method A
 1.68 MPa
@Strain 25 %
243 psi
@Strain 25 %
Average; ASTM D412 Method A
 1.90 MPa
@Strain 50 %
275 psi
@Strain 50 %
Average; ASTM D412 Method A
 >= 2.07 MPa
@Strain 100 %
>= 300 psi
@Strain 100 %
Minimum; ASTM D412 Method A
 3.21 MPa
@Strain 100 %
466 psi
@Strain 100 %
Average; ASTM D412 Method A
Elongation at Break >= 255 %>= 255 %ASTM D412 Method A
 475 %475 %AVG; ASTM D412 Method A
 309.7 %
@Treatment Temp. 100 °C,
Time 1.21e+6 sec
309.7 %
@Treatment Temp. 212 °F,
Time 336 hour
After Dry Heat Aging; ASTM D865
 339 %
@Treatment Temp. 100 °C,
Time 3.60e+6 sec
339 %
@Treatment Temp. 212 °F,
Time 1000 hour
After Dry Heat Aging; ASTM D865
 368.6 %
@Treatment Temp. 100 °C,
Time 605000 sec
368.6 %
@Treatment Temp. 212 °F,
Time 168 hour
After Dry Heat Aging; ASTM D865
 452 %
@Treatment Temp. 100 °C,
Time 252000 sec
452 %
@Treatment Temp. 212 °F,
Time 70.0 hour
After Dry Heat Aging; ASTM D865
Modulus of Elasticity 0.00862 GPa1.25 ksiASTM D412 Method A
Poissons Ratio 0.500.50Calculated
Shear Modulus 0.00287 GPa0.416 ksiASTM D412 Method A
Secant Modulus 0.008101 GPa1.175 ksiASTM D412 Method A
Compression Set  10.4 %
@Temperature 100 °C,
Time 79200 sec
10.4 %
@Temperature 212 °F,
Time 22.0 hour
ASTM D395, Test B
 13.6 %
@Temperature 100 °C,
Time 252000 sec
13.6 %
@Temperature 212 °F,
Time 70.0 hour
ASTM D395, Test B
 20.9 %
@Temperature 100 °C,
Time 1.21e+6 sec
20.9 %
@Temperature 212 °F,
Time 336 hour
ASTM D395, Test B
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg -25.0 °C-13.0 °FASTM D1329
 
Processing PropertiesMetricEnglishComments
Shelf Life 120 Month120 MonthASTM D395, Test B
 
Descriptive Properties
Strain Energy / Unit Volume at 20% Elongation (psi)22

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