Properties of Nitrile Rubber (NBR)

Nitrile rubber (NBR), a synthetic copolymer of butadiene and acrylonitrile, is widely valued for its exceptional resistance to oils, fuels, and chemicals. Commonly used in seals, gaskets, and hoses, NBR is a versatile elastomer in automotive, aerospace, and industrial applications where durability and chemical compatibility are critical.

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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).

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Table of Nitrile Rubber Properties
Physical Properties
Metric
CategoryElastomer
Density1000 kg/m3
Mechanical PropertiesMetric
Ultimate Tensile Strength21 MPa
Ultimate Compressive Strength100 - 600 MPa
Elongation at Break510%
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.