oSIST prEN ISO 20482:2026
(Main)Metallic materials - Sheet and strip - Erichsen cupping test (ISO/DIS 20482:2026)
General Information
- Abstract
ISO 20482:2013 specifies a standard test method for determining the ability of metallic sheets and strips having a thickness from 0,1 mm up to 2 mm and a width of 90 mm or greater to undergo plastic deformation in stretch forming.
For materials that are thicker and when only narrower strips are available, tools of specified dimensions are provided, in which case subscripts are used, as shown in Table 1.
- Status
- Not Published
- Public Enquiry End Date
- 30-Oct-2026
- Technical Committee
- PKG - Testing of metallic materials
Overview
oSIST prEN ISO 20482:2026 defines the Erichsen cupping test for metallic sheet and strip materials. This internationally recognized method is used to assess the ability of metal sheets, with thickness from 0.1 mm to 2 mm and widths of 90 mm or greater, to undergo plastic deformation in stretch forming. The standard also provides guidelines for testing thicker materials or narrower strips using specially dimensioned tools. Developed by the Slovenian Institute for Standardization (SIST) and aligned with ISO and CEN directives, this draft standard is essential in the mechanical testing of metals, especially for flat steel products.
Key Topics
- Erichsen cupping test: This method forms an indentation in a securely clamped metal sheet, using a punch with a spherical end, until a through crack appears. The resulting indentation depth is recorded as the Erichsen cupping index (IE).
- Testing equipment: Specifies requirements for the testing machine, including die, punch, and blank holder dimensions and tolerances, as well as hardness and surface finish criteria.
- Sample preparation: Outlines test piece requirements to ensure accurate and repeatable results, including dimensions, placement, and surface conditions.
- Test procedure: Details the steps from test piece measurement and lubrication to the application of force and measurement of deformation.
- Lubrication: Recommends the use of graphite grease according to ISO 6743-9 for consistent results, with alternative lubricants allowed by agreement.
- Result reporting: Specifies minimum information to be included in the test report, such as reference to the standard, sample details, lubricant type, and cupping index.
Applications
The Erichsen cupping test according to ISO 20482 is widely applied in:
- Quality control: Manufacturers of sheet metals, particularly in the automotive and appliance industries, use this test to evaluate material formability before production.
- Material development: Researchers and material scientists use the test to compare new alloys or processing techniques and ensure compliance with international mechanical testing standards.
- Product standards compliance: Ensures that delivered metallic sheets meet agreed formability requirements, contributing to standardized supply chains.
- Consistency across industries: By following this standardized method, organizations can demonstrate compliance with international quality and safety practices, facilitating trade and acceptance in global markets.
Related Standards
Organizations may also refer to the following standards in conjunction with oSIST prEN ISO 20482:2026 for metallic materials testing and quality assurance:
- ISO 3290-1: Rolling bearings - Balls - Part 1: Steel balls, referenced for alternative test punch materials.
- ISO 21920-2: Geometrical product specifications (GPS) - Surface texture: Profile - Part 2: Terms, definitions, and surface texture parameters, relevant for surface finish requirements of testing tools.
- ISO 6743-9: Lubricants, industrial oils, and related products, provides specifications for recommended lubricants.
- Product-specific standards: Additional standards detailing quality, testing procedures, or mechanical properties for specific metal products or alloys as required by customer or regulatory agreements.
By adhering to the procedures and requirements outlined in oSIST prEN ISO 20482:2026, manufacturers, researchers, and quality assurance professionals ensure reliable, repeatable, and internationally recognized assessment of metallic sheet and strip formability. This bolsters product quality, safety, and consistency across industries globally.
Relations
- Effective Date
- 17-Jul-2024
Get Certified
Connect with accredited certification bodies for this standard
Element Materials Technology
Materials testing and product certification.
Inštitut za kovinske materiale in tehnologije
Institute of Metals and Technology. Materials testing, metallurgical analysis, NDT.
Sponsored listings
Frequently Asked Questions
oSIST prEN ISO 20482:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Metallic materials - Sheet and strip - Erichsen cupping test (ISO/DIS 20482:2026)". This standard covers: ISO 20482:2013 specifies a standard test method for determining the ability of metallic sheets and strips having a thickness from 0,1 mm up to 2 mm and a width of 90 mm or greater to undergo plastic deformation in stretch forming. For materials that are thicker and when only narrower strips are available, tools of specified dimensions are provided, in which case subscripts are used, as shown in Table 1.
ISO 20482:2013 specifies a standard test method for determining the ability of metallic sheets and strips having a thickness from 0,1 mm up to 2 mm and a width of 90 mm or greater to undergo plastic deformation in stretch forming. For materials that are thicker and when only narrower strips are available, tools of specified dimensions are provided, in which case subscripts are used, as shown in Table 1.
oSIST prEN ISO 20482:2026 is classified under the following ICS (International Classification for Standards) categories: 77.040.10 - Mechanical testing of metals; 77.140.50 - Flat steel products and semi-products. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN ISO 20482:2026 has the following relationships with other standards: It is inter standard links to SIST EN ISO 20482:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN ISO 20482:2026 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)
SLOVENSKI STANDARD
01-oktober-2026
Kovinski materiali - Pločevina in trakovi - Preskus globokega vleka po Erichsenu
(ISO/DIS 20482:2026)
Metallic materials - Sheet and strip - Erichsen cupping test (ISO/DIS 20482:2026)
Metallische Werkstoffe - Bleche und Bänder - Tiefungsversuch nach Erichsen (ISO/DIS
20482:2026)
Matériaux métalliques - Tôles et bandes - Essai d'emboutissage Erichsen (ISO/DIS
20482:2026)
Ta slovenski standard je istoveten z: prEN ISO 20482
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
International
Standard
ISO/DIS 20482
ISO/TC 164/SC 2
Metallic materials — Sheet and strip
Secretariat: JISC
— Erichsen cupping test
Voting begins on:
Matériaux métalliques — Tôles et bandes — Essai
2026-08-21
d'emboutissage Erichsen
Voting terminates on:
ICS: 77.040.10 2026-11-13
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 20482:2026(en)
DRAFT
ISO/DIS 20482:2026(en)
International
Standard
ISO/DIS 20482
ISO/TC 164/SC 2
Metallic materials — Sheet and strip
Secretariat: JISC
— Erichsen cupping test
Voting begins on:
Matériaux métalliques — Tôles et bandes — Essai
d'emboutissage Erichsen
Voting terminates on:
ICS: 77.040.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document has not been edited by the ISO Central Secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: +41 22 749 01 11
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 20482:2026(en)
ii
ISO/DIS 20482:2026(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and designations . 1
5 Principle . 2
6 Testing equipment . 3
7 Test piece . 3
8 Test conditions . 4
9 Procedure . 4
10 Test report . 4
Annex A (informative) Example composition of the graphite grease . 6
Bibliography . 7
iii
ISO/DIS 20482:2026(en)
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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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 164, Mechanical testing of metals,
Subcommittee SC 2, Ductility testing.
This third edition cancels and replaces the second edition (ISO 20482:2013), which has been technically
revised.
The main changes are as follows:
— the definition on “through crack” in 3.1 has been partially modified;
— the dimension line for “h ” in Figure 1 has been corrected;
— the first sentence in 6.2 has been partially modified and the second sentence has been added in 6.2;
— “shall” in the first sentence of 6.4 has been replaced by “should”;
— ISO 21920-2 has been added as referenced document in 6.4.2;
— ISO 3290-1 has been added as referenced document in 6.9;
— a clarification regarding an example composition of the graphite grease is added in 9.2 and Annex A;
— Additional specifications are given, if a sudden drop in force is used rather than the visual appearance of
the crack in 9.6
— Information are given about the rounding of the h readings and about decimal places regarding product
standards or special agreements.
— “by the parties involved” has been added in e) and f) of 10;
— “(IE, IE , IE , IE , depending on the bore diameter d used for the tests) and each of the individual
40 21 11 2
values before averaging” has been added in f) of 10;
— Annex A has been revised throughout.
iv
ISO/DIS 20482:2026(en)
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.
v
...