Aerospace series - Round bars, hot rolled in steel - Normal tolerances - Diameter 6 mm < D < 250 mm - Dimensions

This standard specifies the dimensions and tolerances of:
Round bars, hot rolled
in steel
Normal tolerances
Diameter 6 mm * D * 250 mm
for aerospace applications.

Luft- und Raumfahrt - Rundstangen, warmgewalzt aus Stahl - Normale Toleranzen - Durchmesser 6 mm L D L 250 mm - Maße

Diese Norm legt die Maße und Toleranzen von
Rundstangen, warmgewalzt
aus Stahl
Normale Toleranzen
Durchmesser 6 mm * D * 250 mm
für die Luft- und Raumfahrt fest.

Série aérospatiale - Barres rondes, laminées a chaud en acier - Tolérances normales - Diametres 6 mm < D < 250 mm - Dimensions

La présente norme spécifie les dimensions et les tolérances des :
Barres rondes, laminées à chaud
en acier
Tolérances normales
Diamètres 6 mm £ D £ 250 mm
pour applications aérospatiales.

Aerospace series - Round bars, hot rolled in steel - Normal tolerances - Diameter 6 mm < D < 250 mm - Dimensions

General Information

Status
Published
Publication Date
30-Apr-2004
ICS
49.025.10 - Steels
Technical Committee
I08 - Imaginarni 08
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-May-2004
Due Date
01-May-2004
Completion Date
01-May-2004
Ref Project
EN 3145:2001 - Aerospace series - Round bars, hot rolled in steel - Normal tolerances - Diameter 6 mm < D < 250 mm - Dimensions

Overview

EN 3145:2001 is a CEN/CENELEC aerospace series standard that specifies dimensions and normal tolerances for hot-rolled round steel bars used in aerospace applications. It applies to bars with diameters from greater than 6 mm up to 250 mm and covers dimensional data, mass, length options, and geometric tolerances needed for consistent manufacture, inspection and procurement.

Key topics

  • Scope and applicability
    • Covers hot-rolled round bars in steel for aerospace use with 6 mm < D < 250 mm.
    • Intended to standardize dimensions and tolerances across suppliers and manufacturers.
  • Dimensional data and mass
    • The standard provides recommended nominal diameters and linear masses (calculated at 7.85 kg/dm3) to support weight and material planning.
  • Length requirements
    • Bars may be supplied in fixed or random lengths; orders must state which option and, for random lengths, the minimum and maximum values.
  • Dimensional tolerances
    • Tabulated diameter tolerances are defined per diameter range (normal tolerance class).
    • Length tolerances for bars supplied in fixed lengths are specified.
  • Geometric tolerances
    • Straightness and roundness tolerances are defined, with measurement methods referenced to EN 3848 (method of measuring form deviations).
  • Measurement and compliance
    • References measurement procedures and links to the general organization of aerospace metallic-material standards (see EN 4258).

Practical applications

EN 3145:2001 is used by:

  • Aerospace manufacturers and OEMs to specify raw bar material for landing gear components, shafts, fittings, bushes and other turned or machined parts.
  • Material suppliers and stockholders to produce and label inventory to aerospace tolerances.
  • Procurement and quality engineers to write clear purchase specifications and acceptance criteria.
  • Inspection and metrology teams to verify diameter, straightness and roundness in accordance with referenced measurement methods.

Benefits of using this standard:

  • Ensures interchangeability and consistent quality across suppliers.
  • Reduces rework and scrap by aligning dimensional expectations early in the supply chain.
  • Simplifies procurement and inspection with clear, tabulated tolerances.

Related standards

  • EN 3848 - Aerospace series: Semi‑finished metallic products - Method of measuring form deviations (referenced for straightness/roundness measurement)
  • EN 4258 - Aerospace series: Metallic materials - General organization of standardization (series context and links)

EN 3145:2001 is part of the broader aerospace materials family and is essential for anyone specifying, supplying or inspecting hot‑rolled round steel bars to aerospace tolerances.

Frequently Asked Questions

SIST EN 3145:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Round bars, hot rolled in steel - Normal tolerances - Diameter 6 mm < D < 250 mm - Dimensions". This standard covers: This standard specifies the dimensions and tolerances of: Round bars, hot rolled in steel Normal tolerances Diameter 6 mm * D * 250 mm for aerospace applications.

This standard specifies the dimensions and tolerances of: Round bars, hot rolled in steel Normal tolerances Diameter 6 mm * D * 250 mm for aerospace applications.

SIST EN 3145:2004 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 3145:2004 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, hot rolled in steel - Normal tolerances - Diameter 6 mm < D < 250 mm - DimensionsLuft- und Raumfahrt - Rundstangen, warmgewalzt aus Stahl - Normale Toleranzen - Durchmesser 6 mm L D L 250 mm - MaßeSérie aérospatiale - Barres rondes, laminées a chaud en acier - Tolérances normales - Diametres 6 mm < D < 250 mm - DimensionsAerospace series - Round bars, hot rolled in steel - Normal tolerances - Diameter 6 mm < D < 250 mm - Dimensions49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 3145:2001SIST EN 3145:2004en01-maj-2004SIST EN 3145:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3145December 2001ICS 49.025.10English versionAerospace series - Round bars, hot rolled in steel - Normaltolerances - Diameter 6 mm
D
250 mm - DimensionsSérie aérospatiale - Barres rondes, laminées à chaud enacier - Tolérances normales - Diamètres 6 mm
D
250mm - DimensionsLuft- und Raumfahrt - Rundstangen, warmgewalzt ausStahl - Normale Toleranzen - Durchmesser 6 mm
D 250 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 3145:2001 ESIST EN 3145:2004
...

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