Nitrile NBR Rubber O Ring Encapsulated Excellent Gasoline / Oil Resistant
Advantage: excellent resistant to gasoline and Fat hydrocarbon oil, second only to TR, ACM and FKM, better than other general rubber. Good heat resistance, good air tightness, abrasion resistance and water resistance, strong cohesive force.
Disadvantage: poor cold resistance and ozone resistance, low strength and bad flexibility, poor acid resistance, bad electrical insulation and polar solvents resistance.
Operating Temperature: about -30°C~+100°C.
Application: mainly used in manufacturing all kinds of oil-resistant products, such as rubber hoses and seals, etc.
RUICHEN SEALING CO.,LTD offers the seal industry's largest inventory of o-rings, which includes every standard AS568 and ISO 3601 size, and the following:
- Inside Diameter from 0.031 in (0.794 mm) to 26.0 in (66.04cm)
- Outside Diameter from 0.094 in (2.38 mm) to 26.5 in (67.31cm)
- Cross Section from 0.031 in (0.794 mm) to 0.250 in (6.35mm)
In addition to standard imperial and metric sizes, ORK also carries a wide variety of non-standard sizes. With over 8,000 different o-ring sizes in-stock, we have exactly what you are looking for and we can assure immediate delivery of any size in large or small quantities.
O-Ring Sizing Guides
- AS568 Standard O-Ring Sizes
- ISO 3601 Standard Metric O-Ring Sizes
- All Standard and Non-Standard O-Ring Sizes
Still have questions about finding a standard or non-standard o-ring size? Feel free to either contact us
Easy to Order, Fastest Delivery
When you are ready to get started, submit an online RFQ to receive a quote from our dedicated sales team within 24 hours. Most likely the size and compound you require is in our inventory of over 300 Million o-rings. You receive immediate shipments with no intermediate delays. Remember: With ORK, you buy direct.
ASTM D2000/SAE J200 Type, Class: BF, BG, BK, CH
ORK Compound Designation: BN
Standard Color: Black
Description: Presently the seal industry's most widely used and economical elastomer, Nitrile combines excellent resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohols, with a good balance of such desirable working properties as low compression set, high tensile strength, and high abrasion resistance.
Key Use(s): Oil resistant applications of all types. Low temperature military uses. Off-road equipment. Automotive, marine, aircraft fuel systems. Can be compounded for FDA applications.
Temperature Range
Standard Compound: -40° to +257°F
Hardness (Shore A): 40 to 90.
Features: Comprised of the copolymer butadiene and acrylonitrile, in varying proportions. Compounds can be formulated for service temperature ranging from -85°F to +275°F. Use of Carboxylated Nitrile can have superior abrasion resistance, while still having improved oil resistance.
Limitations: Nitrile compounds are attached by small amounts of Ozone. Phthalate type plasticizers are commonly used in compounding Nitrile Rubber. These plasticizers can migrate out and cause problems with certain plastics. Also, new regulations on certain phthalates have limited their use.
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NBR 70 TEST REPORT
ASTM D2000 M2BG 714 B14 EO14 EF11 EF21 EA14 F17
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PROPERITIES
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SPECIFICATION
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TEST RESULT
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TEST METHOD
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Hardness shore A
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70±5
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72
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D2240
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Tensile MPA Min
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14
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14.5
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D12
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Elongation % Min
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250
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315
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D412
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Gravity
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1.263
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D297
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Heat resistant 70h 100℃ Hardness change
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±15
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+5
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D573
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Tensile strength%
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±30
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+15
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Elongation Max
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-50
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-12
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Compression Max 22h at 100℃
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25
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14
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D395
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NO1 oil resistant
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Change in hardness
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-10~+5
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+1
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D471
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Change in tensile Max
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-25
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-16
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Change in Elongation
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-45
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-20
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Change in Volume%
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0~25
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+6
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Fuel resistant 70 H at 23℃
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Hardness change
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±10
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+3
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D471
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Tensile change Max
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-25
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-8
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Elongation change Max
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-25
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-10
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Change in Volume
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-5~+10
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+3
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Water Resistant
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D417
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Change in Hardness
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+3
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Change in tensile
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+5
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Change in Elongation
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-14
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Change in Volume
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±15
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+3
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Low Temperature resistant
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D2137
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3 MIN -40℃
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Non brittle
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Pass
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D2137
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