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Polymer Types - HNBR - Hydrogenated nitrile rubber...

Clwyd reference HNBR
ASTM classification HNBR

Hydrogenated (≥ 90% saturation) version of acrylonitrile-butadiene rubber, which shows improved stability and physical properties compared to standard NBR

Typical applications Oil & gas industry
Advantages

Good resistance to oils and non-polar solvents
High tensile strength
Good ozone and weathering resistance
Good abrasion resistance
Excellent heat resistance

Disadvantages

Decreased  low temperature flexibility compared to NBR
Poor steam resistance

 
Available hardness range (Shore A) 50 - 95
Upper continuous service temp. (°C) 175
Min. temp. for sealing applications (°C) -25
Minimum non-brittle  temp.  (°C) -40
Tensile strength (up to) 30 MPa
Elongation at break (up to) 450%

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