Properties of Nitrile Rubber (NBR)
Nitrile rubber, also known as NBR (acronym for Nitrile Butadiene Rubber), is a synthetic rubber copolymer made from butadiene and acrylonitrile. It is known for its excellent oil and fuel resistance, making it a popular choice for gaskets, seals, hoses, and other applications where exposure to petroleum-based fluids is common.
The following table provides a comprehensive list of nitrile rubber (NBR) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Category | Elastomer |
| Density | 1000 kg/m3 |
| Mechanical Properties | Metric |
| Ultimate Tensile Strength | 21 MPa |
| Ultimate Compressive Strength | 100 - 600 MPa |
| Elongation at Break | 510% |
| Shore Hardness (A) | 30 - 90 |
Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) A.M. Howatson, P.G. Lun, J.D. Todd, P.D. Engineering Tables and Data. United Kingdom: University of Oxford, Department of Engineering Science, 2009.