Hydrogenated Nitrile
Chemical Name:
Hydrogenated acrylonitrile-butadiene
Common Names: HNBR
ASTM D1418: HNBR
ASTM D2000 / SAE J200: DH
ISO/DIN 1629: HNBR
Made of normal NBR polymer by full or partial hydrogenation
of butadiene components containing double
bonds. With peroxide cross-linking this increases the
heat and oxidation stability.
High mechanical strength
and improved abrasion resistance characterize the
materials manufactured of it. Media resistance similar
to NBR.
Temperature range
-30°C ~ 150°C / -22°F ~ 302°F
Good resistance in
Aliphatic hydro-carbons, e.g. propane, butane, petrol, mineral oils (lubricating oils, hydraulic oils of groups H, H-L and H-LP) and mineral-oil-based grease, flame retardant hydraulic fluids of the HFA, HFB and Group HFCs, plant and animal-based oils and greases, light heating oil, diesel fuel.
Average resistance in
Fuels with high aromatic content (super fuels)
Not resistance in
Aromatic hydro-carbons, e.g. benzene, chlorinated hydro-carbons, e.g. trichlorethylene, flame retardant hydraulic fluids of the Group HFD, esters, polar solvents as well as in brake fluids on a glycol ether base.