EN 2491:2011
(Main)Aerospace series - Molybdenum disulphide dry lubricants - Coating methods
Aerospace series - Molybdenum disulphide dry lubricants - Coating methods
This European Standard defines the coating methods and characteristics of molybdenum disulphide dry film lubricants which may be applied to parts in titanium, titanium alloys, steel, corrosion resistant steel and nickel based alloys.
Luft- und Raumfahrt - Trockenschmierstoffe auf Molybdändisulfid-Basis - Beschichtungsverfahren
Diese Europäische Norm legt die Beschichtungsverfahren und Eigenschaften von Trockenschmierstoffen auf
Molybdändisulfid-Basis fest, die auf Bauteilen aus Titan, Titanlegierungen, Stahl, korrosionsbeständigem
Stahl und Legierungen auf Nickel-Basis angewandt werden können.
Série aérospatiale - Lubrifiants solides à base de bisulfure de molybdène - Méthodes d'application
La présente Norme Européenne définit les méthodes d'application et les caractéristiques des films de lubrifiants solides à base de bisulfure de molybdène, applicables aux pièces en titane, alliages de titane, acier, acier résistant à la corrosion et alliages base nickel.
Aeronavtika - Suha maziva iz molibdenovega disulfida - Premazni postopki
Ta evropski standard določa premazne postopke in značilnosti suhih maziv iz molibdenovega disulfida, ki se lahko uporabljajo za dele iz titana, titanovih zlitin, jekla in jekla, odpornega proti koroziji, ter zlitin, narejenih na niklju.
General Information
- Status
- Published
- Publication Date
- 28-Jun-2011
- Withdrawal Date
- 30-Dec-2011
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3/WG 6 - Coatings for fasteners
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 01-Jun-2017
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 08-Jun-2022
Overview
EN 2491:2011 is a European Standard established by CEN, focusing on molybdenum disulphide (MoS2) dry film lubricants used primarily in the aerospace industry. This standard details the coating methods and defines the characteristics and requirements of MoS2 dry lubricants applied to components made from titanium, titanium alloys, steel, corrosion-resistant steel, and nickel-based alloys. Its main objective is to optimize wear resistance, reduce seizing risks, and mitigate fretting corrosion on aerospace parts.
This standard is critical for ensuring consistent quality, adhesion, and durability of dry lubricant coatings in highly demanding aerospace applications. It supersedes the previous EN 2491:1997 version and aligns with European regulatory and quality frameworks.
Key Topics
Coating Methods
- Dipping – Components are immersed in a lubricant bath with carefully controlled viscosity, temperature, and immersion speed. Post application, parts are dried and cured as necessary.
- Spraying – Application via air-fed spray guns with adjustable settings to ensure uniform deposition. Mechanical stirring and automatic gun displacement are recommended for consistent coverage.
- Other methods – Alternative processes such as barrel deposition may be used if they deliver comparable quality.
Surface Preparation
- Titanium and alloys require anodizing in accordance with ISO 8080.
- Corrosion-resistant steel must be passivated following EN 2516 guidelines.
- Steel parts need cadmium plating compliant with EN 2133, potentially followed by phosphating to achieve corrosion resistance and adhesion.
Film Characteristics & Testing
- Thickness: Typically 0.01 ± 0.003 mm; after mechanical finishing 0.005 ± 0.002 mm.
- Appearance: Uniform color, free from defects (scratches, pits, blisters).
- Adhesion: No flaking, blisters, or cracks, verified via ASTM D 2510.
- Heat curing: Film must resist brief solvent contact without damage.
Quality Assurance
- Coating processors must comply with EN 9100 Quality Management Systems.
- Process approval involves testing pre-production parts and gaining purchaser consent before full-scale production.
- Sampling and acceptance testing follow ISO 2859-1 standards to ensure batch quality.
Applications
- Aerospace Components: Used extensively on precision parts fabricated from titanium alloys, steel, and nickel-based metals to safeguard against mechanical wear and corrosion.
- Defense and Space: These coatings are essential in harsh environments where component reliability and longevity are critical, such as engines, fastening systems, and moving assemblies.
- Maintenance and Repair Operations: EN 2491 procedures support recoating or restoration of worn parts without compromising mechanical tolerances or adherence properties.
- Manufacturing Controls: Ensures consistent production standards within aerospace supply chains, enhancing interoperability and safety.
Related Standards
- EN 9100 – Quality management systems for aviation, space, and defense organizations.
- EN 2133 – Cadmium plating of steels for aerospace.
- EN 2516 – Passivation of corrosion-resistant steels and decontamination of nickel alloys.
- EN ISO 1463 – Method for measuring coating thickness.
- EN ISO 2431 and EN ISO 2884 – Paints and varnishes testing for flow time and viscosity, relevant to coating preparation.
- ISO 2859-1 – Sampling procedures for inspection by attributes, applied in acceptance testing.
- ASTM D 2510 – Adhesion testing for solid film lubricants.
EN 2491:2011 provides a comprehensive framework for applying molybdenum disulphide dry lubricants with precision and quality control. It helps aerospace manufacturers and processors achieve enhanced wear resistance and reliable lubrication essential for high-performance aviation and space components. Compliance with this standard ensures safety, performance, and durability in demanding operating environments.
Frequently Asked Questions
EN 2491:2011 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Molybdenum disulphide dry lubricants - Coating methods". This standard covers: This European Standard defines the coating methods and characteristics of molybdenum disulphide dry film lubricants which may be applied to parts in titanium, titanium alloys, steel, corrosion resistant steel and nickel based alloys.
This European Standard defines the coating methods and characteristics of molybdenum disulphide dry film lubricants which may be applied to parts in titanium, titanium alloys, steel, corrosion resistant steel and nickel based alloys.
EN 2491:2011 is classified under the following ICS (International Classification for Standards) categories: 49.040 - Coatings and related processes used in aerospace industry. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2491:2011 has the following relationships with other standards: It is inter standard links to EN 2491:1997. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 2491:2011 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Suha maziva iz molibdenovega disulfida - Premazni postopkiLuft- und Raumfahrt - Trockenschmierstoffe auf Molybdändisulfid-Basis - BeschichtungsverfahrenSérie aérospatiale - Lubrifiants solides à base de bisulfure de molybdène - Méthodes d'applicationAerospace series - Molybdenum disulphide dry lubricants - Coating methods49.040Prevleke in z njimi povezani postopki, ki se uporabljajo v letalski in vesoljski industrijiCoatings and related processes used in aerospace industryICS:Ta slovenski standard je istoveten z:EN 2491:2011SIST EN 2491:2011en,fr01-november-2011SIST EN 2491:2011SLOVENSKI
STANDARDSIST EN 2491:20011DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2491
June 2011 ICS 49.040 Supersedes EN 2491:1997English Version
Aerospace series - Molybdenum disulphide dry lubricants - Coating methods
Série aérospatiale - Lubrifiants solides à base de bisulfure de molybdène - Méthodes d'application
Luft- und Raumfahrt - Trockenschmierstoffe auf Molybdändisulfid-Basis - Beschichtungsverfahren This European Standard was approved by CEN on 10 March 2011.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2491:2011: ESIST EN 2491:2011
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The article discusses EN 2491:2011, which is a European Standard that outlines the coating methods and properties of molybdenum disulphide dry film lubricants. These lubricants can be applied to various parts made from titanium, titanium alloys, steel, corrosion resistant steel, and nickel based alloys.
記事のタイトル: EN 2491:2011 - 航空宇宙シリーズ - モリブデン二硫化物乾式潤滑剤 - 塗装方法 記事内容: この欧州規格は、チタン、チタン合金、鋼、耐食鋼、ニッケルベース合金の部品に適用されるモリブデン二硫化物乾式フィルム潤滑剤の塗装方法と特性を定義しています。
기사 제목: EN 2491:2011 - 항공우주 시리즈 - 모리브덴 디설파이드 건식 윤활제 - 코팅 방법 기사 내용: 이 유럽 표준은 모리브덴 디설파이드 건식 필름 윤활제의 코팅 방법과 특성을 정의하고 있으며, 이러한 윤활제는 티타늄, 티타늄 합금, 강철, 부식 방지 강철 및 니켈 기반 합금 장비에 적용될 수 있습니다.
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