EN 754-4:2008

Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 4: Square bars, tolerances on dimensions and form

This document specifies the tolerances on dimensions and form for aluminium and aluminium alloy cold drawn square bars having widths across flats from 3 mm up to and including 100 mm.
The temper designations used in this part are according to EN 515.

Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 4: Vierkantstangen, Grenzabmaße und Formtoleranzen

Dieses Dokument legt die Grenzabmaße und Formtoleranzen für gezogene Vierkantstangen aus Aluminium
und Aluminiumlegierungen mit einer Seitenlänge von 3 mm bis 100 mm fest.
Die in diesem Dokument verwendeten Bezeichnungen der Werkstoffzustände entsprechen EN 515.

Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 4: Barres carrées, tolérances sur dimensions et forme

Le présent document spécifie les tolérances sur dimensions et forme des barres carrées étirées en aluminium et alliages d’aluminium de largeur sur plats comprise entre 3 mm et 100 mm inclus.
La désignation des états métallurgiques utilisés dans cette partie est conforme à l’EN 515.

Aluminij in aluminijeve zlitine - Hladno vlečene palice/drogovi in cevi - 4. del: Palice s kvadratnim prerezom, tolerance mer in oblike

General Information

• Status: Published
• Publication Date: 18-Mar-2008
• ICS: 77.120.10 - Aluminium and aluminium alloys
• ICS: 77.150.10 - Aluminium products
• Technical Committee: CEN/TC 132 - Aluminium and aluminium alloys
• Drafting Committee: WG 35 - Extruded products
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 02-Dec-2024
• Completion Date: 02-Dec-2024
• Ref Project: SIST EN 754-4:2008 - Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 4: Square bars, tolerances on dimensions and form

Relations

• Replaces: EN 754-4:1995 - Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 4: Square bars, tolerances on dimensions and form
• Effective Date: 22-Dec-2008

Overview

EN 754-4:2008 - published by CEN - specifies the tolerances on dimensions and form for cold drawn aluminium and aluminium-alloy square bars with widths across flats from 3 mm to 100 mm. Temper designations referenced in this part follow EN 515. The standard defines dimensional limits, form tolerances and measurement methods used for inspection, ordering and quality control of cold drawn square bars.

Key topics and technical requirements

• Scope: Applies to cold drawn square bars (3 mm ≤ width across flats ≤ 100 mm).
• Width across flats tolerances (Table 1): negative allowances vary by size, for example:
  • 3–6 mm: −0.08 mm
  • 6–10 mm: −0.09 mm
  • 10–18 mm: −0.11 mm
  • 18–30 mm: −0.13 mm
  • 30–50 mm: −0.16 mm
  • 50–65 mm: −0.19 mm
  • 65–80 mm: −0.30 mm
  • 80–100 mm: −0.35 mm
• Corner radii (Table 2): maximum permitted radii depend on size (e.g. 3–8 mm → 0.4 mm; 80–100 mm → 2.0 mm).
• Length tolerances (fixed lengths, Table 3): if fixed lengths are ordered, tolerances are:
  • L ≤ 2 000 mm: +5 / 0 mm
  • 2 000 < L ≤ 5 000 mm: +7 / 0 mm
  • L > 5 000 mm: +10 / 0 mm
    If no fixed length is specified, bars may be supplied in random lengths (to be agreed).
• Squareness of cut ends: must be within half the fixed-length tolerance range (e.g., for +10/0 mm tolerance, squareness ≤ 5 mm).
• Straightness (Table 4): For widths ≥10 mm, deviation limits apply (example: max 2 mm per metre; localized kink ≤ 0.6 mm in any 300 mm portion).
• Twist (Table 5): tolerances given per 1 000 mm and as total length limits (e.g. 10–30 mm width → 1.0 mm/1000 mm, total 3.0 mm). For widths <10 mm, straightness and twist tolerances must be agreed.
• Squareness (cross-section): maximum deviation = 0.005 × width across flats (Table 6).
• Tempers exceptions: Straightness and twist tolerances do not automatically apply to tempers O and Tx51 - these must be agreed between supplier and purchaser.

Applications and users

• For manufacturers, extruders/drawing mills, and quality control teams to specify and verify product conformity.
• For buyers, procurement and engineers to define acceptance criteria in orders (fixed lengths, tolerances, temper-dependent requirements).
• For design and structural engineers, machinists and fabricators who require precise dimensional and form control for assembly, machining and performance specifications.
• Useful in supply-chain contracts, inspection plans, and compliance testing for aluminium square bar products.

Related standards

• EN 515 - Temper designations for wrought aluminium products (referenced by EN 754-4).
• Other parts of EN 754 series: Part 1 (inspection/delivery), Part 2 (mechanical properties), Part 3 (round bars), Part 5 (rectangular bars), Part 6 (hexagonal bars), Part 7 (seamless tubes), Part 8 (porthole tubes).

Keywords: EN 754-4:2008, aluminium square bars, cold drawn, tolerances on dimensions and form, width across flats, corner radii, straightness, twist, squareness, EN 515, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2008
1DGRPHãþD
SIST EN 754-4:1998
$OXPLQLMLQDOXPLQLMHYH]OLWLQH+ODGQRYOHþHQHSDOLFHGURJRYLLQFHYLGHO
3DOLFHVNYDGUDWQLPSUHUH]RPWROHUDQFHPHULQREOLNH
Aluminium and aluminium alloys - Cold drawn rod/bar and tube - Part 4: Square bars,
tolerances on dimensions and form
Aluminium und Aluminiumlegierungen - Gezogene Stangen und Rohre - Teil 4:
Vierkantstangen, Grenzabmaße und Formtoleranzen
Aluminium et alliages d'aluminium - Barres et tubes étirés - Partie 4 : Barres carrées,
tolérances sur dimensions et forme
Ta slovenski standard je istoveten z: EN 754-4:2008
ICS:
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 754-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2008
ICS 77.150.10 Supersedes EN 754-4:1995
English Version
Aluminium and aluminium alloys - Cold drawn rod/bar and tube -
Part 4: Square bars, tolerances on dimensions and form
Aluminium et alliages d'aluminium - Barres et tubes étirés - Aluminium und Aluminiumlegierungen - Gezogene Stangen
Partie 4: Barres carrées, tolérances sur dimensions et und Rohre - Teil 4: Vierkantstangen, Grenzabmaße und
forme Formtoleranzen
This European Standard was approved by CEN on 10 February 2008.
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: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 754-4:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope.4
2 Tolerances on dimensions .4
2.1 Width across flats.4
2.2 Corner radii.4
2.3 Length.5
2.4 Squareness of cut ends .5
3 Tolerance on form.5
3.1 Straightness.5
3.2 Convexity - Concavity.6
3.3 Twist.6
3.4 Squareness.7
Bibliography .9

Foreword
This document (EN 754-4:2008) has been prepared by Technical Committee CEN/TC 132 “Aluminium and
aluminium alloys”, the secretariat of which is held by AFNOR.
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 September 2008, and conflicting national standards shall be
withdrawn at the latest by September 2008.
This document supersedes EN 754-4:1995.
Within its programme of work, Technical committee CEN/TC 132 entrusted CEN/TC 132/WG 5 "Extruded and
drawn products" to revise EN 754-4:1995.
The following technical modifications have been introduced during the revision:
 Only editorial changes to bring this part in line with the other parts of EN 754
EN 754 comprises the following parts under the general title "Aluminium and aluminium alloys — Cold drawn
rod/bar and tube":
 Part 1: Technical conditions for inspection and delivery
 Part 2: Mechanical properties
 Part 3: Round bars, tolerances on dimensions and form
 Part 4: Squ
...