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.