What is the difference between HNBR and NBR?
NBR is an abbreviation of nitrile rubber while HNBR is the hydrogenated form of nitrile rubber. The key difference between NBR and HNBR is that NBR is a non-hydrogenated form, whereas HNBR is a hydrogenated form. Moreover, NBR has a comparatively low tensile strength compared to HNBR.
What material is HNBR?
Hydrogenated Nitrile Butadiene Rubber
HNBR (Hydrogenated Nitrile Butadiene Rubber), also known as Highly Saturated Nitrile (“HSN”), is special class of nitrile rubber (NBR) that has been hydrogenated to increase saturation of the butadiene segment of the carbon polymer backbone.
Is Buna-N and nitrile the same?
Nitrile rubber — also known as acrylonitrile butadiene rubber, NBR, or Buna-N — is a synthetically produced, petroleum-based rubber ideal for seals, gaskets and o-rings. Nitrile is a highly versatile rubber. It is used in countless applications and products, from marine fuel systems to small engine carburetors.
Is Viton better than HNBR?
In comparison to NBR, HNBR O-Rings have increased chemical and weathering resistance. HNBR has excellent abrasion resistance, making it a viable alternative to Viton® FKM. HNBR also has better low temperature properties and tear resistance than fluorocarbon.
What is HNBR elastomer?
Hydrogenated acrylonitrile butadiene rubber (HNBR) is a unique elastomer. Like NBR, this type of elastomer has excellent resistance to oils and fuels but it also has excellent resistance to many chemicals, heat (steam / hot water) and ozone.
What is HNBR gasket?
HNBR for Gasket applications The HNBR gasket materials are especially developed oil resistant grades typically used for oil and gas applications. The HNBR polymers used are based on fully hydrogenated copolymers from butadiene and. acrylonitrile monomers. The most important feature of the HNBR polymers is the polarity.
What is HNBR used for?
HNBR is recommended for applications requiring good heat, ozone and abrasion resistance, such as automotive components. It is particularly suitable in Motorsport & Specialist Automotive for Engine seals, grommets and gaskets and in the Subsea, Oil & Gas industry for sealing in oil field exploration and processing.
What does the N stand for in Buna-N?
Nitrile rubber
Infobox references. Nitrile rubber, also known as nitrile butadiene rubber, NBR, Buna-N, and acrylonitrile butadiene rubber, is a synthetic rubber derived from acrylonitrile (ACN) and butadiene.
What is the difference between EPDM and Buna-N?
In addition to outstanding water resilience, EPDM is very resistant to damage caused by heat, compression, sunlight, acetones, alkalis and ozone. However, it is not recommended for use with acids or hydrocarbons. Buna-N is another option when outstanding resistance to oil, hydrocarbon and chemicals is required.
Is Buna good for gasoline?
Buna O-rings, also known as nitrile or NBR O-rings, offer excellent sealing and mechanical properties at a low cost. Buna O-rings have resistance to common lubricants and are recommended for crude oil, gasoline, propane, petroleum oils and water.
What is the difference between Buna and Viton?
Viton is the choice over Buna for high-temperature applications. Viton seals hold indefinitely at temperatures up to 400°F and can last up to 48 hours at temperatures up to 600°F. Buna is effective to 250°F. Viton offers universal chemical resistance for sealing applications for oils, fuels, and mineral acids.
What does HNBR O ring stand for?
The Hydrogenated Nitrile Butadiene Rubber (HNBR) O-ring has quickly grown in importance over the last years, due to its excellent cost-performance balance and use in highly demanding applications such as automotive, industrial applications which require high performance.
Are Buna N and NBR interchangable?
My company uses Buna N, but our new plant in China does not have it available. The research I have done seems to suggest the two are interchangable and that Buna N is just the old name for NBR. However, if that is the case, why are they having a problem? If the percent of acrylonitrile is the same, is this essentially the same material?
What is the difference between NBR rubber and HNBR rubber?
NBR Rubber vs. HNBR Rubber Both NBR rubber and HNBR rubber are thermoset elastomers (rubber). There are 6 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. For each property being compared, the top bar is NBR rubber and the bottom bar is HNBR rubber.
What does HNBR stand for?
Hydrogenated Nitrile, HNBR O-Rings Hydrogenated Nitrile Butadiene Rubber, also known as Highly Saturated Nitrile (HSN), is produced by hydrogenating acrylonitrile butadiene rubber (NBR).This process improves the heat and ozone resistance, increases tensile strength, and provides superior abrasion resistance.
What is hydrgenated HNBR?
HNBR Hydrgenated Nitrile HNBR (commonly called Nitrile Rubber or BUNA -N) is a highly saturated, oil resistant elastomer, manufactured by subjecting the unsaturated bonds in NBR (a widely used, oil- resistant rubber) to a special hydrogenation process.