Seals Eastern, Inc.

Compound 7344 Data Sheet

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Compound 7344 Data Sheet
Description: HNBR for oil & gas service
Physical Properties:
ASTM Method Property Avg. Value Min. Value
D412 Method A Tensile Strength  3940 psi  3790 psi
Ultimate Elongation  370%  330%
Stress at Elongation    
- M25  590 psi   psi
- M50  790 psi  770 psi
- M100  1420 psi  1360 psi
Strain Energy/ Unit Volume at 20% elongation  79 psi  
Calculated Shear Modulus, G  1490 psi  
Calculated Youngs Modulus, E  4470 psi  
E-secant from the initial slope  4260 psi  
D624, Die B Tear Strength  520 lbf/inch  
    Max Value Min Value
D2240, Type A Durometer Hardness  94 points  86 points
D297, 15 Specific Gravity  1.18  
       
D395, Test B Compression Set Avg. Value  
22 hrs @ 212F 45%  
70 hrs @ 212F 55%  
336 hrs @ 212F 69%  
D865 - Dry Heat Aging:
Hours Aged Change in Tensile Change in Elongation Change in Durometer
70 hrs @ 212F -7% -25% 0 points
168 hrs @ 212F 1% -9% 3 points
336 hrs @ 212F 4.7% -9.9% 3 points
1000 hrs @ 212F  10.3%  -21% 3 points
Temperature Properties and Shelf Life:
ASTM / Other Description Value
D746 Brittle Point  F
D1329 Temp Retraction TR-10  F
  Glass Transition  -13F
  Max Operating Temp  300F
  Shelf Life (years) 10
Rev. 11/25/2003

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