Nitrile

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NITRILE

Nitrile (Buna-N): Nitrile, also known as Buna-N, acrylonitrile butadiene rubber, and NBR, is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. Nitrile’s physical and chemical properties vary depending on the polymer’s composition, this form of synthetic rubber is unusual in being generally resistant to oil, fuel, and other chemicals. Typically, it is used in the automotive and aeronautical industry to generate fuel and oil handling hoses, seals, gaskets and grommets. Nitrile’s ability to tolerate a range of temperatures from 40° to 226 °F makes it an ideal material for operations requiring a variety of temperatures. Nitrile rubber is normally resistant to aliphatic hydrocarbons. Nitrile, like natural rubber, can be attacked by ozone, ketones, esters and aldehydes. 

Categories

Commercial Nitrile (Buna–N) – Style 35 A smooth finish blended Nitrile sheet, which is offered in a range of five durometers: 40 (untrimmed) thru 80 durometer (trimmed), in order to perform in a wide variety of applications. Designed to meet ASTM specifications for 1BF material. This material can handle a temperature range from -20°F to +170°F. 

Durometer
Hardness
(Shore A ± 5)
Compound Thickness
(inches)
Tensile (psi) Ultimate
Elongation (%)
Estimated Weight
Per Linear Foot
(1/8" x 36")
Specifications
Minimum Minimum
40 8224 1/16 - 1 800 350 2.5 lb ASTM D 2000 1BF 408 Z1,
SAE J200 1BF 408 Z1
(Z1 = Meets basic requirements for BF materials.
Physical properties are as listed.)
50 8225 1/16 - 1 800 300 2.6 lb ASTM D 2000 1BF 508 Z1,
SAE J200 1BF 508 Z1
(Z1 = Meets basic requirements for BF materials.
Physical properties are as listed.)
60 8226 1/16 - 1 900 200 2.7 lb ASTM D 2000 1BF 609,
SAE J200 1BF 609
70 8227 1/16 - 1 1000 200 2.7 lb ASTM D 2000 1BF 710,
SAE J200 1BF 710
70 8228 1/16 - 1 1000 100 2.8 lb ASTM D 2000 1BF 810,
SAE J200 1BF 810

Premium Nitrile (Buna–N) This Premium Grade Nitrile is formulated to give maximum oil resistance and longer service life in demanding applications. Able to withstand a temperatures range of -30°F to +220°F this material comes untrimmed with a smooth blended finish. 

Durometer
Hardness
(Shore A ± 5)
Compound Thickness
(inches)
Tensile (psi) Ultimate
Elongation (%)
Estimated Weight
Per Linear Foot
(1/8" x 36")
Specifications
Minimum Typical Minimum Typical
40 040P0179 1/64 - 1/4 1000 1050 450 500 2.22 lb ASTM D 2000
M1BG 407
50 050P0266 1/64 - 1/4 1000 1400 350 400 2.32 lb ASTM D 2000
M1BG 507
60 060P0187 1/64 - 1/2 1450 1500 300 300 2.36 lb ASTM D 2000
M1BG 610
70 070P0135 1/64 - 1/2 1450 1500 250 250 2.48 lb ASTM D 2000
M1BG 710
80 080P0206 1/64 - 1/4 1450 1500 125 150 2.59 lb ASTM D 2000
M1BG 810
90 090P0270 1/32 - 1/4* 1450 2000 100 100 2.34 lb ASTM D 2000
M1BG 910

FDA Nitrile (Buna–N) – Style 37 A sheet specially formulated for its whiteness, used in food, phamaceutical, and cosmetic processing. Made from FDA-approved ingredients per 21CFR 177.2600, it is non-marking, non-allergenic, and safe to use for repeated food exposure. It has good oil and abrasion resistance and handles oily and greasy food products well. This product conforms with 3-A Sanitary 18-03 requirements for multiple use rubber Class III and Class IV. This material is white in color and comes trimmed with a blended smooth finish. Able to withstand a temperature range of -25°F to +180°F. 

Durometer
Hardness
(Shore A ± 5)
Compound Thickness
(inches)
Tensile (psi) Ultimate
Elongation (%)
Estimated Weight
Per Linear Foot
(1/8" x 36")
Specifications
Minimum Minimum
60 8035 1/16 - 1/4 1000 350 2.8 lb ASTM D 2000 1BG 610,
FDA-approved ingredients
per 21CFR 177.2600

Transformer Oil Nitrile (Buna–N) A Nitrile material designed specifically for the transformer oil market; helping to dissipate the likelihood of high electrostatic charging tendencies. These highly engineered materials, in addition to meeting their respective ASTM D 2000 line call-outs, meet industry specification GE A12C11E7. This material is black in color and untrimmed with a blended smooth finish. 

Durometer
Hardness
(Shore A ± 5)
Compound Thickness
(inches)
Tensile (psi) Ultimate
Elongation (%)
Temperature
Range
Estimated Weight
Per Linear Foot
(1/8" x 36")
Specifications
Minimum Typical Minimum Typical
60 060P0996 1/32 - 1/2 2000 2100 300 500 -30°F to +250°F 2.36 lb ASTM D 2000
5BG 620 A14 B14 EO34,
General Electric
A12C11E7
70 070P0807 1/32 - 1/2 2000 2200 250 350 -20°F to +250°F 2.42 lb ASTM D 2000
5BG 720 A14 B14 EO34,
General Electric
A12C11E7

Bio–Diesel Nitrile (Buna–N) Specially designed and developed for use in environments where alternative fuels are present. Immersion test results indicate that these materials are compatible with alternative fuels and are suitable for Bio-Diesel B20 (20% Bio-Diesel and 80% Petroleum Diesel) and Bio-Diesel B100 (100% Bio-Diesel). This material is black in color and comes untrimmed with a smooth blended finish. Able to withstand a temperature range of -30°F to +220°F. 

Durometer
Hardness
(Shore A ± 5)
CompoundThickness
(inches)
Tensile (psi)Ultimate
Elongation (%)
Estimated Weight
Per Linear Foot
(1/8" x 36")
Features
MinimumTypicalMinimumTypical
60060P06781/32 - 1/2150015003003002.39 lbCompatible with
Bio-Diesel B20 & B100
70070P10421/32 - 1/2150018002502502.4 lbCompatible with
Bio-Diesel B20 & B100

General Information

Common Name: Nitrile, Buna-N, NBR 

Chemical Name: Acrylonitrile-butadiene 

Generally Resistant to: Gases, Aliphatic Hydrocarbon, Oils and Fuels 

Generally Attacked by: Ketones, Ozone, Sunlight, Aromatic Oil, Flame, Weather 

ASTM D 2000 / SAE J200 Classification: BF, BG, BK, CH 

MIL-R-3065 / SAE J-14 / MIL-STD-417 Classification: SB 

ASTM D-1418 Designation: NBR 

Physical Properties

Elongation: 400% to 600% 

Hardness Range (Durometer Shore A): 35 to 90 

 

Mechanical Properties

Compression Set: Good 

Rebound Rating: Good 

Flex Cracking Resistance: Good 

Abrasion Resistance: Good to Excellent 

Tear Resistance: Good 

Impact Resistance: Fair to Good 

Flame Resistance: Poor 

 

Thermal Properties

Minimum Service Temperature: -30°F to -70°F 

Maximum Service Temperature: +220°F to +280°F

  • Store in a cool, dry place with temperature below 75°F.
  • Keep away from direct heat or open flames.
  • Avoid contact with solvents or other fluids.
  • Do not store in direct sunlight.
  • Keep products wrapped or sealed to minimize the absorption of moisture.
  • Store in a relaxed condition free from tension, compression or other deformation.

For complete information regarding environmental resistance and chemical resistance give us a call and our trained and knowledgeable staff will be able to answer your questions.