EN 2840:2013
(Main)Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 50 IRHD
Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 50 IRHD
This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), mineral oil resistant, hardness 50 IRHD, for aerospace applications.
Luft- und Raumfahrt - Acrylnitril-Butadien-Elastomer (NBR) - Beständig gegen Mineralöle - Härte 50 IRHD
Diese Norm legt die Eigenschaften von Acrylnitril-Butadien-Kautschuk (NBR) ), beständig gegen Mineralöle, Härte 50 IRHD, zur Anwendung in der Luft- und Raumfahrt fest.
Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux huiles minérales - Dureté 50 DIDC
La présente Norme européenne spécifie les caractéristiques de l’élastomère acrylonitrile butadiène (NBR), résistant aux huiles minérales, dureté 50 DIDC, pour les applications aérospatiales.
Aeronavtika - Akrilonitril-butadien kavčuk (NBR) - Odporen proti mineralnim oljem - Trdota 50 IRHD
Ta evropski standard določa lastnosti akrilonitril-butadien kavčuka (NBR), odpornega proti mineralnim oljem, s trdoto 50 IRHD za uporabo v aeronavtiki.
General Information
Overview
EN 2840:2013 is a European standard developed by CEN that specifies the properties of acrylonitrile-butadiene rubber (NBR) optimized for aerospace applications. This material is distinguished by its mineral oil resistance and a hardness level of 50 IRHD, making it suitable for components exposed to petroleum-based hydraulic fluids and lubricants. The standard ensures consistent quality and performance of NBR used in demanding aerospace environments.
This standard addresses the classifications, testing methods, and minimum performance requirements of NBR with respect to physical and chemical properties, aimed to promote reliability and safety in aerospace engineering.
Key Topics
Material Specification
Acrylonitrile-butadiene rubber (NBR) with mineral oil resistance and specified hardness of 50 IRHD.Scope of Application
Designed specifically for aerospace use, where resistance to petroleum-based hydraulic fluids and lubricants is critical.Temperature Range
- Continuous service: from -40°C to +120°C
- Intermittent service: from -40°C to +150°C
Physical and Mechanical Properties
Compliance with tests detailed in EN 3207 including:- Hardness (IRHD 50 ±5)
- Tensile strength (minimum 10 MPa)
- Elongation at break (minimum 400%)
- Compression set limits after heat aging
- Resistance to low temperatures, ozone exposure, and metal corrosion/adhesion
Testing and Qualification
Standard test specimens are used to validate properties. Batch acceptance tests focus on hardness, density, tensile strength, elongation, and compression set among others to ensure material consistency.Designation and Documentation
Identification follows a clear labeling system referencing the EN 2840 standard number and rubber type.
Applications
EN 2840:2013 standardized NBR material is essential for aerospace manufacturers and suppliers engaged in producing seals, gaskets, hoses, and other elastomeric components exposed to mineral oil-based fluids. Typical applications include:
- Hydraulic sealing systems in aircraft, where durability against petroleum-based fluids is mandatory
- Lubricating system components requiring resistance to oil degradation
- Aerospace rubber parts that operate reliably under wide temperature ranges and intermittent thermal stress
- Ozone and corrosion resistant elements ensuring longevity and safety of aircraft components exposed to aggressive environmental conditions
By adhering to this standard, aerospace industry stakeholders can ensure compatibility, safety, and longevity of components made with mineral oil resistant NBR.
Related Standards
Key normative references complementing EN 2840:2013 include:
- EN 3207 – Aerospace series: Rubber compounds technical specifications, providing detailed test methods and technical requirements for aerospace rubber materials including NBR.
- ISO 1629 – Rubber and latices nomenclature, standardizing terminology and classification of synthetic rubbers.
- ISO 1817 – Determination of the effect of liquids on vulcanized rubber, essential for evaluating chemical resistance such as to mineral oils.
These related standards establish a comprehensive framework that supports the material specification, testing, and application of NBR in aerospace contexts.
By adopting EN 2840:2013, aerospace organizations ensure that rubber components meet stringent requirements for mineral oil resistance, mechanical durability, and thermal stability, enhancing overall safety and performance in aircraft systems exposed to aggressive fluids and environmental conditions.
Frequently Asked Questions
EN 2840:2013 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 50 IRHD". This standard covers: This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), mineral oil resistant, hardness 50 IRHD, for aerospace applications.
This European Standard specifies the properties of acrylonitrile-butadiene rubber (NBR) ), mineral oil resistant, hardness 50 IRHD, for aerospace applications.
EN 2840:2013 is classified under the following ICS (International Classification for Standards) categories: 49.025.40 - Rubber and plastics. The ICS classification helps identify the subject area and facilitates finding related standards.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Acrylnitril-Butadien-Elastomer (NBR) - Beständig gegen Mineralöle - Härte 50 IRHDSérie aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux huiles minérales - Dureté 50 DIDCAerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 50 IRHD49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 2840:2013SIST EN 2840:2014en,fr,de01-januar-2014SIST EN 2840:2014SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2840
February 2013 ICS 49.025.40 English Version
Aerospace series - Acrylonitrile-butadiene rubber (NBR) - Mineral oil resistant - Hardness 50 IRHD
Série aérospatiale - Élastomère acrylonitrile butadiène (NBR) - Résistant aux huiles minérales - Dureté 50 DIDC
Luft- und Raumfahrt - Acrylnitril-Butadien-Elastomer (NBR) - Beständig gegen Mineralöle - Härte 50 IRHD This European Standard was approved by CEN on 27 October 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2840:2013: ESIST EN 2840:2014
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