SIST EN 3842:2002

Aerospace series - Circular tubes for fluids in corrosion resistant steel - Diameter 3,2 mm < = D < = 100 mm - Thickness 0,32 mm < = a < = 2,5 mm - Dimensions

This standard specifies the dimensions and tolerances of:
Circular tubes for fluids
in corrosion resistant steel
Diameter 3,2 mm £ D £ 100 mm
Thickness 0,32 mm £ a £ 2,5 mm
for aerospace applications.

Luft- und Raumfahrt - Runde Leitungsrohre aus korrosionsbeständigem Stahl - Durchmesser 3,2 mm # D # 100 mm - Wanddicke 0,32 mm # a # 2,5 mm - Maße

Diese Norm legt die Maße und Toleranzen von:
Runden Leitungsrohren
aus korrosionsbeständigem Stahl
Durchmesser 3,2 mm = D = 100 mm
Wanddicke 0,32 mm = a = 2,5 mm
für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Tubes circulaires pour canalisations en aciers résistant a la corrosion - Diametres 3,2 mm < = D < = 100 mm - Épaisseurs 0,32 mm < = a < = 2,5 mm - Dimensions

Aerospace series - Circular tubes for fluids in corrosion resistant steel - Diameter 3,2 mm < = D < = 100 mm - Thickness 0,32 mm < = a < = 2,5 mm - Dimensions

General Information

• Status: Published
• Publication Date: 31-Dec-2001
• ICS: 49.080 - Aerospace fluid systems and components
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2002
• Due Date: 01-Jan-2002
• Completion Date: 01-Jan-2002
• Ref Project: EN 3842:2001 - Aerospace series - Circular tubes for fluids in corrosion resistant steel - Diameter 3,2 mm < = D < = 100 mm - Thickness 0,32 mm < = a < = 2,5 mm - Dimensions

Overview

SIST EN 3842:2002 is a European standard developed by CEN that defines the dimensions and tolerances of circular tubes for fluids made from corrosion-resistant steel, specifically designed for aerospace applications. It applies to tubes with diameters from 3.2 mm up to 100 mm and wall thicknesses ranging between 0.32 mm and 2.5 mm. This standard is part of the aerospace metallic materials series, ensuring consistent quality and interchangeability of tubes used in fluid systems within the aerospace industry.

Key Topics

• Dimensions and Tolerances
  EN 3842 specifies precise dimensional criteria including:

  • Outer diameter measurement tolerances depending on size ranges (e.g., ±0.08 mm for diameters ≤ 32 mm)
  • Wall thickness tolerances ranging from ±0.04 mm to ±0.08 mm based on nominal thickness
  • Length tolerances for tubes supplied in fixed lengths
  • Geometric tolerances such as straightness, roundness, and eccentricity to ensure the mechanical and functional suitability of tubes

• Recommended Dimensions and Mass
  The standard details nominal diameters, thicknesses, and corresponding linear masses (kg/m) to assist in material selection and weight estimation essential for aerospace design.

• Material Specifications
  Tubes must be manufactured from corrosion-resistant steel, enhancing durability and longevity in harsh aerospace environments.

• Measurement Methods
  EN 3842 references EN 3848 for standardized measurement of form deviations, such as straightness, ensuring uniform testing protocols.

Applications

EN 3842 tubes are critical components in aerospace fluid systems, providing reliable conduits for hydraulic fluids, fuel, lubrication, and cooling systems. Key application benefits include:

• Corrosion Resistance
  Steel tubes adhering to this standard resist degradation in aggressive environments typical of aerospace operating conditions.

• Precise Engineering Fit
  Tight dimensional and geometric tolerances ensure optimal system performance and ease of assembly in aircraft manufacturing and maintenance.

• Weight Optimization
  Accurate mass data enables engineers to reduce overall aircraft weight while maintaining safety and structural integrity.

• Interchangeability and Standardization
  Compliance with EN 3842 guarantees tube uniformity across suppliers and countries, streamlining procurement and certification processes.

Related Standards

• EN 3848 – Aerospace series: Semi-finished metallic products - Method of measuring form deviations
• EN 4258 – Aerospace series: Metallic materials - General organization of standardization and links between types of EN standards and their use

Both related standards complement EN 3842 by detailing measurement techniques and the broader metallic materials framework for aerospace applications.

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Keywords: EN 3842, aerospace tubes, corrosion resistant steel tubes, circular tubes dimensions, aerospace fluid systems, tube tolerances, stainless steel tubes aerospace, EN aerospace standards, tube straightness tolerance, aerospace hydraulic tubing, corrosion resistant aerospace steel

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2002
Aerospace series - Circular tubes for fluids in corrosion resistant steel - Diameter
3,2 mm < = D < = 100 mm - Thickness 0,32 mm < = a < = 2,5 mm - Dimensions
Aerospace series - Circular tubes for fluids in corrosion resistant steel - Diameter 3,2 mm
< = D < = 100 mm - Thickness 0,32 mm < = a < = 2,5 mm - Dimensions
Luft- und Raumfahrt - Runde Leitungsrohre aus korrosionsbeständigem Stahl -
Durchmesser 3,2 mm # D # 100 mm - Wanddicke 0,32 mm # a # 2,5 mm - Maße
Série aérospatiale - Tubes circulaires pour canalisations en aciers résistant a la
corrosion - Diametres 3,2 mm < = D < = 100 mm - Épaisseurs 0,32 mm < = a < = 2,5
mm - Dimensions
Ta slovenski standard je istoveten z: EN 3842:2001
ICS:
49.080 /HWDOVNLLQYHVROMVNL Aerospace fluid systems and
KLGUDYOLþQLVLVWHPLLQGHOL components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3842
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2001
ICS 49.080
English version
Aerospace series - Circular tubes for fluids in corrosion resistant
steel - Diameter 3,2 mm
D
100 mm - Thickness 0,32 mm
a

2,5 mm - Dimensions
Série aérospatiale - Tubes circulaires pour canalisations en Luft- und Raumfahrt - Runde Leitungsrohre aus
aciers résistant à la corrosion - Diamètres 3,2 mm
D
korrosionsbeständigem Stahl - Durchmesser 3,2 mm
D

100 mm - Epaisseurs 0,32 mm
a
2,5 mm - Dimensions 100 mm - Dicken 0,32 mm
a
2,5 mm - Maße
This European Standard was approved by CEN on 2 May 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3842:2001 E
worldwide for CEN national Members.

Foreword
This European Standard has been prepared by the European Association of Aerospace Manufacturers
(AECMA).
After inquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by March 2002, and conflicting national standards shall be withdrawn at
the latest by March 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
...