However, it is worth noting that at low temperatures Nitrile is prone to shrinking and could lose chemical resistance. SPEC SHEET: Nitrile 75 Durometer – Metal & X-Ray Detectable. Acrylonitrile content varies in commercial products from 18% to 50%. The compression set is a vital aspect of how an O-ring performs but it is crucial to ensure that a reliable seal is formed. However, it is worth noting that at low temperatures Nitrile is prone to shrinking and could lose chemical resistance. Temperature Range. This material has a desirable set of properties including low compression set, high resistance to abrasion and good tensile strength. The standard temperature range is -55°C to +200°C. The table below shows the available datasheets for this material in pdf. NBR is also resistant against tears and abrasive treatment. These have a temperature range of -45°C to 120°C. Buna-N O-Rings (NBR Nitrile) Selection Guide Buna-N O-Rings . This compound has a relatively high acrylo content, making it exceptionally resistant to petroleum base oils and hydrocarbon fuels over a temperature range of -40°F to +250°F. However, where UV and ozone are not a factor but fuels are, nitrile offers a reliable and cost-effective option for a wide range of general-purpose applications. Due to its excellent resistance to petroleum products, and its ability to be compounded for service over a temperature range of -35°C to +120°C (-30°F to +250°F), Nitrile /NBR is the most widely used elastomer in the seal industry today. © 2021 ERIKS nv. Technical Specifications. Special Nitrile compounds offer temperature ranges of -55°C to 135°C (Dry Heat Only). Nitrile LT Cons: At low temperatures, prone to shrinking and can lose chemical resistance. Hydrogenated Nitrile (HNBR) O-Rings Temperature Range: -32°F (-36°C) to 300°F (149°C) Hardness (Shore A) Range: 50 to 90 Also Know As: Therban®, Tornac®, Zetpol® Designation: HNBR Class: DH Shelf Life: 15 Years Description: Hydrogenated Nitrile comes from adding hydrogen to the nitrile molecular chain to make it more stable. Buna-N o-rings also referred to as NBR o-rings and Nitrile o-rings are the most widely used o-ring material in the word because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Other common names for Nitrile are Buna, Buna-N, and NBR. Buy Nitrile O Rings. NBR resists oil-based hydraulic fluids, fats, animal and vegetable oils, flame retardant liquids (HFA, HFB, HFC), grease, water, and air. They can withstand the temperatures between -40°C and +135°C (intermittent/compound-specific up to +150°C), however, can be formulated for temperatures ranging between -65°C … Nitrile 70 bs o-rings o-rings are widely used in the seal industry. O‑Ring Size Search Material Selection Guide Chemical Compat. They can also be compounded for service over a temperature range of -40°C to 135°C. Here we give you a range of O-Rings that are ideal for low temperatures. The elastomer is also suitable for use in a wide range of working conditions. This rubber O-ring temperature chart shows high and low rubber temperature range resistance for all popular materials. It should be mentioned that to obtain good resistance to low temperature, it is often necessary to sacrifice some high temperature resistance. The nitrile o-ring is commonly referred to as … NBR's stability at high temperatures from −40 to 108 °C (−40 to 226 °F) makes it an ideal material for aeronautical applications. Our range includes British Standard (BS1806), British Metric (BS4518) and German Metric (DIN3771). Browse our latest Nitrile O Rings offers. Due to its excellent resistance to petroleum products, and its ability to be compounded for service over a temperature range of -35°C to +120°C (-30°F to +250°F), Nitrile /NBR is the most widely used elastomer in the seal industry today. NBR is the standard material for hydraulics and pneumatics. Why Does an O-Ring Fail at Low Temperatures? Special low-temperature compounds are available for mineral oil-based fluids. This is defined by the percentage of material that does not return to its original size after it has been compressed. They come in a range of hardness’s from 30 to 90 shore type A. Also many military rubber specifications for fuel and oil resistant O-rings require nitrile based compounds. Nitrile provides excellent compression set, tear, and abrasion resistance. These O Rings can be used in temperatures from -40°F [-40°C] to +212°F [+100°C]. These have a temperature range of -45°C to 120°C. Where To Buy Parker's nitrile rubber (NBR) O-rings are compatible with oils and gases. Temperature range:-35°C and +110°C (+135°C intermittent)-25°C to +205°C (+230°C intermittent) Suited for: General purpose sealing, such as petroleum oils, water and some hydraulic fluids. Astra Seals® have a temperature range of -250°C to +260°C. Free Next Day Delivery. In situations where a certain material has been deemed suitable as a result of its chemical compatibility or even its mechanical properties, there could be a version available for low temperatures. Nitrile O Rings have a working temperature range -30 to +100 degrees C. Nitrile O Rings have good chemical resistance to mineral oils and greases, hydraulic oils and also non-flammable hydraulic pressure fluids. My Cart. They should not be stored near electric motors or other ozone generating equipment. However, the fluorinated temperature range is -60°C to +230°C while the special low temperature compound temperature range is -100°C to +230°C. Compounds from nitrile rubber can exhibit a temperature range of -65 F to +300 F,on o-rings, although no one formulation may exhibit the total range. Nitrile LT Pros: Low cost, moderate oil, chemical and grease resistance. HNBR orings are also known as Highly Saturated Nitrile (HSN) o-rings. Also called NBR or Buna-N, nitrile o rings are probably the most economical and widely used elastomer out there. Your information will not be shared with third parties. Also many military rubber specifications for fuel and oil resistant O-rings require nitrile based compounds. Temperature Range Standard Compound: -40° to +257°F. O-Ring Temperature Ranges by O-Ring Compound - Sealing Devices Good Wear Resistance, Good Compression Set Resistance, Good Short-Term Resilience, Good Permeation Resistance. These come with a range of temperatures. We carry a full range of AS568 standard sizes, as well as metric sizes and O-Ring cord stock. NBR is good for applications where the O-ring is exposed to fats, greases and animal or vegetable oils. However, they are only recommended for use in axial sealing applications with no stretch. Nitrile offers a moderate level of resistance against oils, chemicals and greases. However, like Nitrile, it can shrink at lower temperatures and lose its resistance to chemicals. Nitrile 70 Durometer O-Ring, Low Temperature (N0103-70) Configure. NBR parts should be kept from direct sunlight. Skip to Content . The quality of Nitrile-compounds depends on the percentage of acrylonitrile in the base polymer. Each of our companies takes a unique approach to transforming raw materials into specialised components for larger OEM assemblies. NBR (Nitrile), chemically, is a copolymer of butadiene and acrylonitrile. Nitrile (Low Temperature) -55°C to 107°C (-65°F to 225°F)* Neoprene -51°C to 107°C (-60°F to 225°F)* Hydrogenated Nitrile -32°C to 149°C (-23°F to 300°F)* Polyacrylate -21°C to 177°C (- 5°F to 350°F)* Buna-N O-Rings Properties. This offers the best low-temperature compression set. For more information on Nitrile / NBR or one of our other o-ring materials please contact one of the ERIKS Sealing & Polymer locations or fill in the form below. Hardness (Shore A): 40 to 90. Nitrile o-rings may also come in a metal detectable variation, while retaining the same qualities as the general Nitrile o-ring compound. Global O-Ring and Seal, LLC is a master distributor of O-Rings, Backup Rings, X-Rings, Cord Stock, and related seals, servicing industrial distributors worldwide. Excellent performance under conditions of abrasion and tear also made Nitrile the material of choice … Compounds can be formulated for service temperature ranging from -85°F to +275°F. These O-rings offer a temperature range of -60°C to +260°C. Nitrile has good mechanical properties when compared with other elastomers and high wear resistance. To find out more at the NES Astra Seal®, visit https://www.nes-ips.com/astra-seals/. For a durable ‘O’ ring that performs well in ozone, sunlight, steam and a reasonably wide temperature range, EPDM is the obvious choice. Seals and Wind Power – Powering the Future. Nitrile compounds also have excellent resistance to compression set, tear and abrasion resistance. Safety datasheets are available here. Temperature range: Effective from -40°C to 120°C. The process of cooling results in rubber losing its elasticity and this is measured as the Compression Set of the elastomer. Temperature Range Relative Price Recommended Uses Not Recommended For Common … Nitrile is the most widely used elastomer in the seal industry, and commonly used in o-ring and sealing applications. As the NBR content increases, resistance to petroleum base oils and hydrocarbon fuels increases, but low temperature flexibility decreases. This O-ring is manufactured from Nitrile rubber (NBR), which is a cost-effective material and is great for applications where the O-ring is exposed to fats, greases and vegetable oils. Due to its excellent resistance to petroleum products, and its ability to be compounded for service over a temperature range of -35°C to +120°C (-30°F to +250°F), Nitrile /NBR is the most widely used elastomer in the seal industry today. Up to 90°C (Intermittent) Down to -30°C; Recommended temperature range -20°C to +90°C Hydrogenated Nitrile - 35° to 225°- 37° to 107° Neoprene - 30° to 250°- 34° to 121° Nitrile (General Service) - 65° to 225°- 55° to 107° Nitrile (Low Temperature) - 15° to 500°- 26° to 260° Perfluoroelastomer (Parofluor) - 5° to 350°- 21° to 177° Polyacrylate - 40° to 180° All rights reserved. Most common being 70 and 90 shore type A. HITECHSEALS.COM 3 Compound Specification Guide Prefix Material Duro. For this reason, it is widely used for general-purpose nitrile ‘O’ rings in automotive, marine and aerospace applications. However, this can be improved through compounding. These results produce a compound with greater tensile strength, improved temperature ranges, significant extrusion and wear protection, along with a broader range of chemical resistance. Nitrile (Buna-N) O-Ring. We stock all major compounds including Buna (Nitrile), Viton (FKM), EPDM, Silicone, Teflon, Aflas, etc. The popularity of nitrile is due to its excellent resistance to petroleum products and its ability to be compounded for service over a temperature range of -22°F to 212°F. Temperature Range Description N70 Nitrile 70 ± 5-40°C to 120°C -40°F to 248°F A general service nitrile compound for a wide range of applications including petroleum based fluids. Nitrile butadiene is also used to produce moulded goods, footwear, adhesives, sealants, sponges, expanded foams, and floor mats. The material Nitrile, also known as Buna-N or acrylonitrile butadiene rubber, functions at a temperature range of between -65 F and 300 F. O-rings made from Nitrile are typically used for general sealing purposes, which includes sealing of hydraulic fluids, petroleum oils, water and so on. | Sitemap, Registered Office: ERIKS N.V. - Chamber of Commerce North-Holland: 37 01 32 89 - VAT Number: NL003.076.490.B02, 3-A,ADI,EC1935-2004,FDA 21 CFR 177-2600,REACH,RoHS. Temperature Range: -45°C to 110°C. O-Ring Design Guide. Datwyler offers a complete selection of both the standard AS568 o-ring and metric o-ring sizes. Nitrile compounds do not possess good resistance to ozone, sunlight, or weather. Low Temperature Nitrile O-ring. My Account Log In Checkout. Make sure that your material is compatible with your environment by going to our rubber properties and chemical compatibility sections. Low-Temperature Nitrile O-ring. For applications requiring contact with diesel or temperatures higher than 120°C you may wish to consider Polymax FKM (Viton®) O-rings. Hydrogenated Nitrile 70 Durometer O-Ring, General Purpose (N1173-70) | Product Series Filter. Nitrile compounds are superior to most elastomers with regard to compression set, tear, and abrasion resistance. They come with a high level of resistance to low temperatures although they are prone to wear while they have little chemical compatibility. Nitrile rubber can be formulated for a modest temperature range of between … Versatile and reliable, nitrile offers good resistance to gasoline, diesel fuel, motor oil, acids and non-polar solvents. Nitrile O Rings are available in a Black colour as standard with a hardness of between 40 and 90 Shore A. Temperature Range (Typical Compounds) Sulfur-Cured: Standard Low Temp: -35°C (-31°F) Standard High Temp: 120°C (248°F) SPEC SHEET: Nitrile 70 Durometer. Toggle Nav. Nitrile o-rings. It is vital to understand that most elastomers have different formulas that can reduce the working temperature of the compound. These have a temperature range of -45°C to 120°C. Nitrile 70 bs o-rings offer excellent resistance to petroleum products. Also many military rubber specifications for fuel and oil resistant O-rings require nitrile based compounds. Features: Comprised of the copolymer butadiene and acrylonitrile, in varying proportions. By hydrogenation, carboxylic acid addition, or PVC blending, the nitrile polymer can meet a more specified range of physical or chemical requirements. Nitrile offers a moderate level of resistance against oils, chemicals and greases. Offering a temperature range of -42°C to +220°C, they also come with a high level of chemical resistance although they are considered to be an expensive solution. In this example, formulating nitrile with lesser amounts of acrylonitrile improves its low temperature resistance. Along with this, they also have improved resistance to both chemicals and oils. NBR / Nitrile or Buna N Acrylonitrile Butadiene Abbreviation NBR ASTM D-2000 Classification BF, BG, BK Chemical Definition Acrylonitrile Butadiene 30000 Series ♦ Physical & Mechanical Properties Durometer or Hardness Range 20 – 95 Shore A Tensile Strength Range 200 – 3,500 PSI Elongation (Range … Excellent compression set, tear, and floor mats to Buy Parker 's rubber! To ozone, sunlight, or weather good resistance to low temperature temperature... Of Nitrile-compounds depends on the percentage of acrylonitrile improves its low temperature compound temperature range of -45°C 120°C! 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