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Low-Acn — Nbr

Elastomer
Nbr
Grade Or Variant
Low Acn
Acid Resistance
Fair
ASTM Designation
BG/BK (ASTM D2000)
Chemical Resistance Notes
Best Low-Temperature Flexibility of Nbr grades; Lower Oil Swell Resistance Than High-ACN; Used in Low-Temperature Fuel and Hydraulic Seals
Common Name
Nitrile (Low Acn ~18-25%)
Compression Set Pct (%)
20-40
Compression Set Temp C
100
Compression Set Time Hr
22
Cure System
Sulfur Or Peroxide
Density G CM3 (g/cm3)
1.00-1.10
Elongation at Break Pct (%)
200-500
Fuel Resistance
Fair
Gas Permeability
Medium
Glass Transition Temp C (C)
-48 to -42
Hardness Range Shore a
40-80
Max Continuous Temp C (C)
100
Max Peak Temp C (C)
120
Max Service Temp C (C)
100
Min Service Temp C (C)
-48
Oil Resistance
Good
Ozone Resistance
Poor
Steam Resistance
Poor
Tensile Strength Mpa (MPa)
10-20
TR10 Temp C
-48
Volume Swell Fuel B Pct
60-100
Volume Swell Oil IRM903 Pct
30-60
NBR — grade or variant low_ACN · chemical resistance notes Best low-temperature flexibility of NBR grades; lower oil swell resistance than… · common name Nitrile (Low ACN ~18-25%) · astm designation BG/BK (ASTM D2000) · glass transition temp C -48 to -42 C | Elastomer Service Properties | Engineering Database