ISO 6363-4:2022

Wrought aluminium and aluminium alloys — Cold-drawn rods/bars, tubes and wires — Part 4: Tolerances on form and dimensions for drawn rectangular bars and wires

This document specifies the tolerances on form and dimensions of wrought aluminium and aluminium alloy drawn rectangular bars and wires with thicknesses ranging from 2 mm up to and including 60 mm and widths up to and including 200 mm. For wires, this document does not apply to electrical, welding and aeronautical purposes. For drawn bars, 5.1 to 5.4 apply, and only 5.1 applies to drawn wires.

Aluminium et alliages d'aluminium corroyés — Barres, tubes et fils étirés à froid — Partie 4: Tolérances sur forme et dimensions pour barres rectangulaires et fils étirés

General Information

• Status: Published
• Publication Date: 30-Jun-2022
• ICS: 77.150.10 - Aluminium products
• Technical Committee: ISO/TC 79/SC 6 - Wrought aluminium and aluminium alloys
• Drafting Committee: ISO/TC 79/SC 6 - Wrought aluminium and aluminium alloys
• Current Stage: 6060 - International Standard published
• Start Date: 01-Jul-2022
• Due Date: 05-Apr-2023
• Completion Date: 01-Jul-2022

Relations

• Revises: ISO 6363-4:2012 - Wrought aluminium and aluminium alloys — Cold-drawn rods/bars, tubes and wires — Part 4: Drawn rectangular bars and wires — Tolerances on form and dimensions
• Effective Date: 23-Apr-2020

Overview

ISO 6363-4:2022 specifies tolerances on form and dimensions for cold‑drawn wrought aluminium and aluminium‑alloy rectangular bars and wires. The standard covers thicknesses from 2 mm to 60 mm and widths up to 200 mm. It applies to drawn rectangular bars (Clauses 5.1–5.4) and to drawn wires for dimensional tolerances (only Clause 5.1). Note: this part does not apply to wires intended for electrical, welding or aeronautical purposes.

Keywords: ISO 6363-4:2022, wrought aluminium, drawn rectangular bars, tolerances on form and dimensions, cold-drawn wires

Key topics and technical requirements

• Scope and material grouping
  • Alloys are grouped into Group I and Group II (different manufacturing behavior and tolerance limits).
  • Alloy lists reference ISO 6362‑7 and the Aluminum Association “Teal sheets.”
• Tolerances on width and thickness
  • Detailed tolerance tables (Tables 3 and 4) define permissible deviations by width (b) and thickness (a), different for Group I and Group II alloys.
  • Measurements are taken excluding corner radii.
• Fixed‑length and length tolerances
  • Maximum permissible length tolerances for fixed‑length bars are in Table 5; squareness of cut ends must be within half the fixed‑length tolerance.
• Corner radii
  • Maximum allowed corner radii for rectangular bars are specified (Table 6) to ensure slightly rounded corners without exceeding limits.
• Form tolerances
  • Flatness (Table 7), straightness and twist tolerances (Table 8) are specified. Example: straightness is limited to 2 mm per 1 000 mm of length and not more than 0.6 mm per 300 mm.
  • Measurement procedures: form tolerances are assessed by placing the bar on a horizontal plate under its own mass (figures illustrate measurement setups).
• Squareness
  • Maximum deviation from square is given by a formula in Table 9 (e.g., proportional to thickness).

Practical applications and users

ISO 6363-4:2022 is used by:

• Manufacturers and cold‑drawing mills to set production tolerances and quality targets.
• Quality control and inspection teams for acceptance testing of drawn rectangular aluminium bars and wires.
• Purchasing/specification engineers and procurement teams to write unambiguous material specifications.
• Designers and fabricators who require dimensional and form consistency for assembly, machining or final products (automotive, construction, general engineering).
• Testing laboratories and certification bodies verifying compliance with international tolerances.

Related standards

• ISO 6363-1 - Technical conditions for inspection and delivery (normative reference)
• ISO 6362-7 - Chemical composition for extruded alloys (alloy listings)
• Aluminum Association “Teal sheets” - International alloy designations

Use ISO 6363-4:2022 to ensure consistent dimensional quality of cold‑drawn aluminium rectangular bars and wires and to harmonize buyer/supplier expectations across the supply chain.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 6363-4
Third edition
2022-07
Wrought aluminium and aluminium
alloys — Cold-drawn rods/bars, tubes
and wires —
Part 4:
Tolerances on form and dimensions
for drawn rectangular bars and wires
Aluminium et alliages d'aluminium corroyés — Barres, tubes et fils
étirés à froid —
Partie 4: Tolérances sur forme et dimensions pour barres
rectangulaires et fils étirés
Reference number
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Materials . 1
5 Tolerances on form and dimensions .2
5.1 Tolerances on width and thickness . 2
5.2 Fixed-length tolerances . 3
5.3 Squareness of cut ends . 3
5.4 Corner radii . 3
5.5 Form tolerances . 4
5.5.1 General . 4
5.5.2 Flatness tolerances . 4
5.5.3 Straightness tolerances . 5
5.5.4 Twist tolerance. 5
5.5.5 Squareness tolerances . 6
Bibliography . 7
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 79, Light metals and their alloys,
Subcommittee SC 6, Wrought aluminium and aluminium alloys.
This third edition cancels and replaces the second edition (ISO 6363-4:2012), which has been technically
revised. The main changes are as follows:
— in Clause 4, Table 1 has been separated into Table 1 and Table 2 by alloy group;
— in Clause 4, alloy 6026 has been added to Table 1 and alloy 2033 has been added to Table 2;
— errors have been corrected and expressions modified throughout.
A list of all parts in the ISO 6363 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 6363-4:2022(E)
Wrought aluminium and aluminium alloys — Cold-drawn
rods/bars, tubes and wires —
Part 4:
Tolerances on form and dimensions for drawn rectangular
bars and wires
1 Scope
This document specifies the tolerances on form and dimensions of wrought aluminium and aluminium
alloy drawn rectangular bars and wires with thicknesses ranging from 2 mm up to and including
60 mm and widths up to and including 200 mm.
For wires, this document does not apply to electrical, welding and aeronautical purposes.
For drawn bars, 5.1 to 5.4 apply, and only 5.1 applies to drawn wires.
2 Normative references
The following documents are referred
...