Styrene butadiene rubber sbr, bunas sbr rubber is a thermoset elastomer or rubber material. Internal fiber reinforcement enhances hose pressure rating and ensures connection retention. Solution vinyl styrene butadiene rubber ssbr buna vsl 45262. Rubber extrusions nitrile bunan general description. Nitrile bunan sheet rubber, commercial grade, mediumhard 60 durometer, shore a. Natural rubber has excellent tensile, elongation, tear resistance, resilience, and electrical insulation. Bulk hose and end connections available for field assembly. Polybutadiene butadiene rubber br is a synthetic rubber.
Nitrile, or buna n, is a copolymer of butadiene and acrylonitrile. Buna n orings also referred to as nbr orings and nitrile orings are the most widely used oring 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. When solid rubber is compressed in one direction it expand in the other direction. It is the workhorse of oil sealing owing to costperformance compromise. Nitrile has very good oil and gasoline resistance, superior resistance to petroleumbased hydraulic fluids, a wide range of service temperatures, good resistance to hydrocarbon solvents, and very good resistance to alkalis and acids. Buna s rubber 175 gr ferrous metal retainer oring for positive pressure seal to the atmosphere ring permanently swaged onepiece high grade malleable or ductile iron plug seat seals ferrous metal insert with elastomeric. Matl style code metro industries material specification rsbne60. The worlds most trusted name in belts, hose and hydraulics. Bunan orings also referred to as nbr orings and nitrile orings are the most widely used oring 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. Another 25% is used as an additive to improve the toughness impact. Specific materials should be tested for compatibility with solvent. Styrene butadiene rubber sbr, buna s sbr rubber is a thermoset elastomer or rubber material.
Automatic zoom actual size page fit page width 50% 75% 100% 125% 150% 200% 300% 400% more information. Rubber material selection guide sbr or styrene butadiene. It has a moderately low density and a fairly high ductility among rubber materials. Each block is wrapped in pe film, which is assigned a specific colour relating to the respective rubber grade. A halffull bar means it s 50% of the highest, and so on. Nitrile rubber nbr buna nis a general purpose material resistant to a large variety of oils and greases. Styrenebutadiene or styrenebutadiene rubber sbr describe families of synthetic rubbers derived from styrene and butadiene the version developed by goodyear is called neolite. Nitrile butadiene rubber nbr is a family of unsaturated copolymers of 2propenenitrile and various butadiene monomers 1,2butadiene and 1,3butadiene. Epdm, butyl rubber, buna s, and neoprene are recommended for elastomeric parts. Nitrile 70, nitrile rubber properties, nitrile specifications. This site is like a library, you could find million book here by using search box in the header.
Among nitrile rubbers strongest characteristics are its chemical resistances. Custom extrusions rubber, sponge, and plastic materials rubber nr natural rubberpolyisoprene epdm ethylenepropylenedienemonomer sbrgrs styrene butadiene rubber buna s ir synthetic polyisoprene csm chlorsulfonated polyethylene, hyalon nbr acrylonitrile butadiene, nitrile, buna n cr. Both orings and gaskets can be made from neoprene materials. These materials have good abrasion resistance and good aging stability when protected by additives. Bunan style ab364 manufacturer american biltrite gaskets meet the pressure ratings, drilling and dimensions of ansiasme b16. Neoprene was the first synthetic rubber developed commercially and exhibits generally good ozone, aging and chemical resistance. Key difference buna n vs viton buna n and viton are commercial names for butadieneacrylonitrile nitrile rubber and vinylidene fluoridehexafluoropropylene copolymer, respectively. Matl style code metro industries material specification.
We also have nitrile sheets, nitrile rolls and quantity pricing on the items listed. Nitrile buna n sheet rubber, commercial grade, mediumhard 60 durometer, shore a. Also, rubber orings are subject to the poissons effect poissons ratio. General features nitrile rubber is a copolymer of acrylonitrile acn and butadiene that is generally resistant to oil, fuel, aliphatic hydrocarbons, and other chemicals, but can be attacked by ozone, aromatic hydrocarbons, ketones, esters and aldehydes. Longterm compatibility data simulating exposure of vapor degreaser construction. Custom extrusions rubber, sponge, and plastic materials rubber nr natural rubberpolyisoprene epdm ethylenepropylenedienemonomer sbrgrs styrene butadiene rubber buna s ir synthetic polyisoprene csm chlorsulfonated polyethylene, hyalon nbr acrylonitrile butadiene, nitrile, buna n. Nitrile nbr is the polymer of choice for applications requiring oil and solvent resistance.
The material was initially marketed with the brand name buna s. Syntion 1810 is baled to form of rubber blocks weighing 33 kg 1,0 kg and measuring 720 x 360 x 180 mm. This is due to nitriles compatibility with most environments as well as its relative cost compared to other rubber materials. The rise of buna s although buna s had been the first copolymer rubber to be patented, it had been largely neglected. M nbr bunan nitrile datasheet test report marco rubber. Nitrile is not suitable for solvents and chlorinated hydrocarbons.
Buna n style ab364 manufacturer american biltrite gaskets meet the pressure ratings, drilling and dimensions of ansiasme b16. Below is a selection of different types of nitrile rubber that we offer. Buna n nitrile rubber sheet we are also capable of producing molded slabs up to 4 thick and we can slit into strips or stripping. Although its physical and chemical properties vary depending on the polymers composition of nitrile, this form of synthetic rubber is unusual in being generally resistant to oil, fuel, and other chemicals the more nitrile. It has good mechanical properties over a wide temperature range. Bunan is currently one of the most widely used elastomers in the manufacture of seals. Learn about nitrile sheet products view current nitrile sheet inventory fluoroelastomer polymer. General properties of elastomers elastomer page butyl 2 epdm ethylenepropylenediene modified 3 natural rubber 4 neoprene 5 nitrile buna n 6. Buna n rubber manufacturers suppliers of buna n rubber. A full bar means this is the highest value in the relevant set.
Most commonly used general purpose oring material because of relative low cost, good mechanical properties. Both these elastomers are widely used synthetic elastomers that possess a unique set of. Rubber core hose rayon fiber reinforced multipurpose pushon hose. It is used in countless applications and products, from marine fuel systems to small engine carburetors. Any of a family of synthetic rubbers made from the polymerization of butadiene with a sodium catalyst. Identification of the substancemixture and of the companyundertaking. Rubber extrusions nitrile buna n general description. This page has links to all data sheets in matweb for the tradename buna n. However, marco rubber makes no warranty, expressed or implied, that parts manufactured from this material will perform satisfactorily in the customer s application. It s the customer s responsibility to evaluate parts prior to use. However by late 1935when the pressure was on to produce synthetic rubber and neoprene was not availableit became clear that buna s was a good tyre rubber. Nbr acrylonitrile butadiene rubber, buna n, nitrile. After the latex is processed, natural rubber becomes an elastomer with excellent mechanical properties.
Different nitrile compounds are available for fuels and for industrial fluids. It is used for making oil seels,manufacturing of tank linings,protective gloves etc. All books are in clear copy here, and all files are secure so dont worry about it. Polyglycols40 to 125 good loadcarrying ability, compatible with most elastomers, noncarbonizing. What is the difference for epdm and buna n answers. This gasket has wide applications and is accepted as standard for most pipeline use. To this end we have established a global management system that is coordinated centrally. Epdm, butyl rubber, bunas, and neoprene are recommended for elastomeric parts.
The graph bars on the material properties cards below compare sbr rubber to other rubber materials top and the entire database bottom. Buna rubber definition of buna rubber by the free dictionary. Industrial hose productslist prices january 5, 2004. For practical purposes, rubber is non compressible and you must account for the poissons effect this in the design of your groove. Nitrile bunan sheet rubber products from warco biltrite. Nitrile, or bunan, is a copolymer of butadiene and acrylonitrile. Panjiva uses over 30 international data sources to help you find qualified vendors of buna n rubber. Bunas rubber 175 gr ferrous metal retainer oring for positive pressure seal to the atmosphere ring permanently swaged onepiece high grade malleable or ductile iron plug seat seals ferrous metal insert with elastomeric. Improved ozone, weathering and aging resistance compared with nitrile rubber. Specific formulas of buna n nitrile sheet are used for transformer oil. Nitrile rubber nbr nitrile bunan sheet order online. This page has links to all data sheets in matweb for the tradename bunan. Tables 5 and 6 summarize test results on shortterm exposures of unstressed plastics and elastomers simulating a typical cleaning cycle. Mykins rn00170, nitrile bunan 70 durometer, is a general purpose copolymer of butadiene and acrylonitrile.
Buna gaskets are made with good compression set characteristics, but have a limited temperature range 30f 200f which precludes their use in many applications, primarily steam. General properties of elastomers elbex corporation. Nitrile rubber is also referred to as bunan rubber. Its name derives bu for butadiene and na for sodium natrium in several languages including latin, german, and dutch, and s for styrene. Bunan nitrile, nbr epdm ethylene propylene kalrez isolast, ffkm fluorosilicone fvmq hydrin eco, epichlorohydrin hytrel tpe natural rubber nr neoprene cr polyurethane pur silicone vmq viton fkm ammonia, liquid c a b d d d d a d b d ammonium acetate b a a a b d a a d b a.
Polybutadiene rubber is a polymer formed from the polymerization of the monomer 1,3butadiene. Rubber material selection guide nbr nitrile or buna n. It was wearresistant and could be blended with natural rubber. Weather seal oring buna n rubber stem seal oring buna s rubber retaining seats buna n rubber retaining seat pads ferrous powder metal retainer seat spring type 304 stainless steel b a d c x y e tail piece nut oring insulator 275 valve body stem oring weather seal oring steel seat spring seat seal. It s the customer s responsibility to evaluate prior to use. We have several search tools, listed above, that give you more efficient methods to reach the information that you need.
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