EN 2344:2001
(Main)Aerospace series - Round bars, machined in heat resisting alloys - Diameter 10 mm < = D < = 180 mm - Dimensions
Aerospace series - Round bars, machined in heat resisting alloys - Diameter 10 mm < = D < = 180 mm - Dimensions
This standard specifies the dimensions and tolerances of:
Round bars, machined
in heat resisting alloys
Diameter 10 mm £ D £ 180 mm
for aerospace applications.
Luft- und Raumfahrt - Rundstangen, bearbeitet aus hochwarmfesten Legierungen - Durchmesser 10 mm # D # 180 mm - Maße
Diese Norm legt die Maße und Toleranzen von:
Rundstangen, bearbeitet
aus hochwarmfesten Legierungen
Durchmesser 10 mm D 180 mm
für Anwendungen in der Luft- und Raumfahrt fest.
Série aérospatiale - Barres rondes, usinées en alliages résistant à chaud - Diamètres 10 mm < = D < = 180 mm - Dimensions
Aerospace series - Round bars, machined in heat resisting alloys - Diameter 10 mm < = D < = 180 mm - Dimensions
General Information
- Status
- Published
- Publication Date
- 18-Sep-2001
- Withdrawal Date
- 30-Mar-2002
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 4 - Metallic
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 01-Jun-2017
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN 2306:2017 - Aerospace series - Heat resisting - Nickel base alloy Ni-Cr20Co3Fe3 - Annealed - Bars - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 2344:2001 is a European aerospace standard that specifies the dimensions and tolerances for machined round bars made from heat resisting alloys with nominal diameters from 10 mm to 180 mm. It is part of the EN metallic materials series for aerospace applications and defines the dimensional requirements, recommended dimensions/mass data, and geometric tolerances needed when supplying round bars for high-temperature aerospace use.
Key topics and technical requirements
- Scope: Applies to round bars, machined, in heat resisting alloys with diameter 10 mm ≤ D ≤ 180 mm for aerospace use.
- Diameter tolerances: The standard gives diameter tolerance bands by nominal diameter range (values in millimetres):
- 10 ≤ D < 18 : tolerance 0.70 mm
- 18 ≤ D < 30 : tolerance 0.84 mm
- 30 ≤ D < 50 : tolerance 1.00 mm
- 50 ≤ D < 80 : tolerance 1.20 mm
- 80 ≤ D < 120 : tolerance 1.40 mm
- 120 ≤ D ≤ 180 : tolerance 1.60 mm
- Length options: Orders must specify whether bars are supplied in fixed or random lengths; for random lengths the minimum and maximum must be stated.
- Geometric tolerances: Includes requirements for straightness and roundness. Roundness deviations shall be contained within the diameter tolerances. Methods for measuring form deviations (straightness, roundness) are referenced to EN 3848.
- Recommended dimensions and mass: The standard provides recommended nominal diameters and corresponding linear mass values (information based on a reference density).
- Series organization: EN 2344 is part of the aerospace metallic material standards series and links to the general organization described in EN 4258.
Applications and users
Who uses EN 2344:
- Aerospace component manufacturers and raw-bar suppliers who produce or procure machined round bars in heat resisting alloys.
- Design and manufacturing engineers specifying bar stock for high-temperature aerospace parts.
- Procurement and quality inspectors verifying conformance to dimensional and geometric requirements. Practical applications:
- Supplying machined bar stock for aerospace high-temperature components where controlled dimensions and tolerances are critical (e.g., parts destined for engines and hot-structure assemblies).
Related standards
- EN 3848 - Method of measuring form deviations (referenced for straightness/roundness measurement).
- EN 4258 - General organization of aerospace metallic material standards and relationships between EN types.
Keywords: EN 2344:2001, round bars, heat resisting alloys, diameter 10-180 mm, aerospace standard, dimensions and tolerances, geometric tolerances, straightness, roundness, EN 3848, EN 4258.
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Frequently Asked Questions
EN 2344:2001 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Round bars, machined in heat resisting alloys - Diameter 10 mm < = D < = 180 mm - Dimensions". This standard covers: This standard specifies the dimensions and tolerances of: Round bars, machined in heat resisting alloys Diameter 10 mm £ D £ 180 mm for aerospace applications.
This standard specifies the dimensions and tolerances of: Round bars, machined in heat resisting alloys Diameter 10 mm £ D £ 180 mm for aerospace applications.
EN 2344:2001 is classified under the following ICS (International Classification for Standards) categories: 49.025.99 - Other materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2344:2001 has the following relationships with other standards: It is inter standard links to EN 4258:2024, EN 3848:2001, EN 2306:2017, EN 2960:2020, EN 4244:2020, EN 2398:2008, EN 2399:2008, EN 3220:2019, EN 3219:2020. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2344:2001 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Round bars, machined in heat resisting alloys - Diameter 10 mm < = D < = 180 mm - DimensionsLuft- und Raumfahrt - Rundstangen, bearbeitet aus hochwarmfesten Legierungen - Durchmesser 10 mm # D # 180 mm - MaßeSérie aérospatiale - Barres rondes, usinées en alliages résistant a chaud - Diametres 10 mm < =
D < =
180 mm - DimensionsAerospace series - Round bars, machined in heat resisting alloys - Diameter 10 mm < =
D < =
180 mm - Dimensions49.025.99Drugi materialiOther materialsICS:Ta slovenski standard je istoveten z:EN 2344:2001SIST EN 2344:2002en01-januar-2002SIST EN 2344:2002SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2344September 2001ICS 49.025.99English versionAerospace series - Round bars, machined in heat resistingalloys - Diameter 10 mm
D
180 mm - DimensionsSérie aérospatiale - Barres rondes, usinées en alliagesrésistant à chaud - Diamètres 10 mm
D
180 mm -DimensionsLuft- und Raumfahrt - Rundstangen, bearbeitet aushochwarmfesten Legierungen - Durchmesser 10 mm
D 180 mm - MaßeThis 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 EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2001 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2344:2001 ESIST EN 2344:2002
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