SIST EN 4133:2009
(Main)Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425° C
Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425° C
This standard specifies the characteristics of bolts, normal hexagonal head, coarse tolerance normal shank,
long thread, in titanium alloy, aluminium IVD coated.
Classification: 1 100 MPa 1) / 425 °C 2)
Luft- und Raumfahrt - Sechskantschrauben, langes Gewinde, aus Titanlegierung, Aluminium IVD beschichtet - Klasse: 1 100 MPa (bei Raumtemperatur) / 425° C
Diese Norm legt Eigenschaften von Sechskantschrauben mit langem Gewinde aus Titanlegierung, Aluminium-IVD-beschichtet, fest.
Klasse: 1 100 MPa /425 °C
Série aérospatiale - Vis à tête hexagonale normale, tige normale à tolérance large, filetage long, en alliage de titane, revêtues aluminium IVD - Classification : 1 100 MPa (à température ambiante)/425 °C
Aeronavtika - Sorniki, normalna šestroba glava, široka toleranca, dolg navoj, iz titanove zlitine, prevlečeni z aluminijem IVD - Klasifikacija: 1100 MPa (pri temperaturi okolice)/425 °C
General Information
Overview
SIST EN 4133:2009 is a European standard developed by CEN that specifies the characteristics of aerospace bolts with a normal hexagonal head, coarse tolerance normal shank, and long thread. These bolts are made from titanium alloy and feature an aluminium Ion Vapor Deposition (IVD) coating. The standard defines classification values for mechanical strength at ambient temperature (1,100 MPa) and operating temperature up to 425 °C. This specification ensures high-performance fasteners suitable for demanding aerospace applications where durability, corrosion resistance, and strength at elevated temperatures are critical.
Key Topics
Bolt Configuration and Dimensions: The standard provides precise dimensions, tolerances, and mass specifications for various diameter codes ranging from MJ3×0.5 to MJ20×1.5, along with length codes. Tolerances follow ISO 5855-2 and ISO 7913 guidelines, ensuring interchangeability and reliability.
Material Specification: Bolts are manufactured from a titanium alloy characterized by a tensile strength of 1,100 MPa at ambient temperature. The alloy offers a lightweight yet durable solution, optimized for aerospace performance.
Surface Treatment: The bolts have an aluminium IVD coating for enhanced corrosion resistance, conformity to MIL-DTL-83488D (Type II, Class 3), and include mechanical blasting and chromate conversion coating. Optional lubrication with cetyl alcohol is available to reduce friction during assembly.
Marking and Identification: Bolts are marked according to EN 2424 aerospace product marking requirements, with specific codes representing diameter, length, lubrication, and optional hole features to facilitate traceability.
Quality and Compliance: EN 4133 references aerospace quality management systems EN 9100 and EN 9133 for manufacturer approval and qualification of aerospace standard parts, ensuring strict quality assurance and production controls.
Applications
EN 4133 aerospace bolts are designed for use in:
Aircraft Structural Assemblies: Providing reliable fastening with high strength and temperature resistance for airframes and critical structural components.
Engine Components: Suitable for bolting titanium alloy parts where operating temperatures can reach up to 425 °C.
Spacecraft and Defense Equipment: Ideal for installations requiring lightweight, high-performance fasteners with superior corrosion resistance.
Precision Aerospace Manufacturing: Used in applications demanding exact tolerances and mechanical properties to maintain structural integrity under thermal and mechanical stress.
Related Standards
- EN 2424: Aerospace series - Marking of aerospace products, governing traceability and identification.
- EN 9100 / EN 9133: Aerospace quality management systems, defining manufacturing and approval criteria.
- ISO 3353-1 & ISO 5855-2: Standards specifying thread lead, runout, and dimensional limits for aerospace bolts.
- ISO 7913: Tolerances of form and position for metric bolts and screws.
- ISO 9152: Procurement specification for titanium alloy bolts, complementing EN 4133 technical requirements.
- MIL-DTL-83488D: U.S. Defense Department standard on aluminium IVD coating, enhancing corrosion protection.
- ASD-STAN Guidelines: European aerospace industry guidelines supporting the development and adoption of harmonized standards.
Practical Value
Adherence to EN 4133 facilitates:
- Interoperability: Ensures bolts meet common aerospace industry dimensions and mechanical requirements.
- Reliability: Guarantees performance under high-temperature conditions and mechanical loads.
- Corrosion Resistance: Aluminium IVD coating protects against oxidative and environmental degradation.
- Safety: Complies with aerospace safety and quality mandates to reduce risk of fastener failure.
- Traceability: Effective marking systems assist in quality control and maintenance procedures.
Choosing EN 4133-certified titanium alloy bolts optimizes component longevity and structural safety in critical aerospace applications, supporting innovation and regulatory compliance within the aerospace and defense sectors.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Sechskantschrauben, langes Gewinde, aus Titanlegierung, Aluminium IVD beschichtet - Klasse: 1 100 MPa (bei Raumtemperatur) / 425° CSérie aérospatiale - Vis à tête hexagonale normale, tige normale à tolérance large, filetage long, en alliage de titane, revêtues aluminium IVD - Classification : 1 100 MPa (à température ambiante)/425 °CAerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425° C49.030.20Sorniki, vijaki, stebelni vijakiBolts, screws, studs49.025.30TitanTitanium49.025.20AluminijAluminiumICS:Ta slovenski standard je istoveten z:EN 4133:2009SIST EN 4133:2009en01-junij-2009SIST EN 4133:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4133
April 2009 ICS 49.030.20 English Version
Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425 °C
Série aérospatiale - Vis à tête hexagonale normale, tige normale à tolérance large, filetage long, en alliage de titane, revêtues aluminium IVD - Classification: 1 100 MPa (à température ambiante)/425 °C
Luft- und Raumfahrt - Sechskantschrauben,
langes Gewinde, aus Titanlegierung, Aluminium IVD beschichtet - Klasse: 1 100 MPa (bei Raumtemperatur) / 425 °C This European Standard was approved by CEN on 12 March 2009.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4133:2009: ESIST EN 4133:2009
Scope This standard specifies the characteristics of bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium
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Frequently Asked Questions
SIST EN 4133:2009 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated - Classification: 1 100 MPa (at ambient temperature) / 425° C". This standard covers: This standard specifies the characteristics of bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated. Classification: 1 100 MPa 1) / 425 °C 2)
This standard specifies the characteristics of bolts, normal hexagonal head, coarse tolerance normal shank, long thread, in titanium alloy, aluminium IVD coated. Classification: 1 100 MPa 1) / 425 °C 2)
SIST EN 4133:2009 is classified under the following ICS (International Classification for Standards) categories: 49.025.20 - Aluminium; 49.025.30 - Titanium; 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.
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