ISO 5001:2012
(Main)Cold-reduced carbon steel sheet for vitreous enamelling
Cold-reduced carbon steel sheet for vitreous enamelling
ISO 5001:2012 applies to cold-reduced carbon steel sheet of commercial and drawing qualities for vitreous enamelling, where the surface of the sheet and chemical composition of the base metal are of prime importance.
Tôles en acier au carbone laminées à froid pour émaillage par vitrification
General Information
Relations
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 5001
Fifth edition
2012-08-01
Cold-reduced carbon steel sheet for
vitreous enamelling
Tôles en acier au carbone laminées à froid pour émaillage par
vitrification
Reference number
ISO 5001:2012(E)
©
ISO 2012
---------------------- Page: 1 ----------------------
ISO 5001:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 5001:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Quality designations for steel sheets for vitreous enamelling . 2
5 Conditions of manufacture . 2
5.1 Steelmaking . 2
5.2 Chemical composition . 2
5.3 Chemical analysis . 3
5.4 Weldability . 4
5.5 Application . 4
5.6 Mechanical properties . 4
5.7 Strain ageing . 5
5.8 Surface condition . 6
5.9 Surface finish . 6
5.10 Surface quality . 6
5.11 Oiling . 6
6 Dimensional and shape tolerances . 6
7 Tensile test sampling . 6
8 Tensile test requirements . 6
9 Retests . 7
10 Resubmission . 7
11 Workmanship . 7
12 Inspection and acceptance . 7
13 Coil size . 7
14 Marking . 7
15 Information to be supplied by the purchaser . 8
Bibliography . 9
© ISO 2012 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 5001:2012(E)
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 5001 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill flat
rolled products.
This fifth edition cancels and replaces the fourth edition (ISO 5001:2007), which has been technically revised.
iv © ISO 2012 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 5001:2012(E)
Cold-reduced carbon steel sheet for vitreous enamelling
1 Scope
This International Standard applies to cold-reduced carbon steel sheet of commercial and drawing qualities
for vitreous enamelling, where the surface of the sheet and chemical composition of the base metal are of
prime importance.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 16162, Cold-rolled steel sheet products — Dimensional and shape tolerances
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
steel sheet for vitreous enamelling
product obtained from cold-reduced steel sheet having a matte finish and for which proper chemical composition
and processing are selected by the producer to prepare the sheet for both fabrication and vitreous enamelling.
NOTE It is produced in thicknesses of 0,35 mm and thicker (commonly up to 3 mm) and in widths of 600 mm and
wider in coils and cut lengths. Sheet for vitreous enamelling less than 600 mm wide may be slit from wide sheet and will
be considered sheet.
3.2
skin pass
final light cold rolling of cold-reduced fully processed sheet
NOTE The purpose of the final light cold rolling is one or more of the following:
a) to temporarily minimize the occurrence of stretcher strains (Lüders’ lines) or fluting during fabrication of finished parts;
b) to obtain the required surface finish for vitreous enamelling;
c) to control shape.
3.3
stabilized interstitial steel
extra-low-carbon steel in which all interstitial elements are combined with titanium and/or equivalent elements
3.4 Types for vitreous enamelling
3.4.1
type 1
sheet steel suitable for two-coat enamelling
NOTE The base metal of this type loses strength after firing the enamel, and if this is a problem, the producer should
be consulted.
© ISO 2012 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 5001:2012(E)
3.4.2
type 2
very-low-carbon sheet steel suitable for direct cover coat (one coat) enamelling and also for two-coat enamelling
for special applications (sag resistance)
NOTE It should be noted that this type loses strength after firing and, if this should be a problem, the producer should
be consulted. See Table 1 footnote “a” for other special application details.
3.4.3
type 3
interstitial-free sheet steel with extremely low carbon content and excellent formability, suitable for one- or two-
coat enamelling
3.5
lot
a lot consisting of 50 tonnes or less of the same quality rolled to the same thickness and condition
4 Quality designations for steel sheets for vitreous enamelling
4.1 Commercial-quality sheet (VE01) is intended for general fabricating purposes where sheet is used in the
flat form, or for bending or moderate forming.
4.2 Drawing-quality sheet (VE02, VE03, VE04 and VE05) is intended for drawing and severe forming. It
is furnished according to all requirements of this International Standard or, by agreement when ordered, to
fabricate an identified part, in which case the mechanical properties of Table 4 do not apply. If strain ageing is to
be minimized, grade VE04 or VE05 should be specified.
Drawing qualities are identified as follows:
VE02 – drawing quality;
VE03 – deep-drawing quality;
VE04 – deep-drawing quality aluminium-killed;
VE05 – extra-deep-drawing quality (stabilized interstitial-free).
4.3 The designations in 4.1 and 4.2 include the qualities of sheet steel for vitreous enamelling. The designation
VE represents “vitreous enamelling” similar to CR “cold reduced”. The numbers 01, 02, 03, 04 and 05 are
common to other standards, indicating the qualities of commercial, drawing, deep-drawing, deep-drawing
aluminium-killed and extra-deep-drawing interstitial-free.
5 Conditions of manufacture
5.1 Steelmaking
The processes used in making the steel and in manufacturing sheet for vitreous enamelling are left to the discretion
of the producer. When requested, the purchaser shall be informed of the steelmaking process being used.
5.2 Chemical composition
The chemical composition (heat analysis) shall not exceed the values given in Tables 1 and 2.
2 © ISO 2012 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 5001:2012(E)
Table 1 — Chemical composition
Composition, max. % (mass fraction)
Vitreous enamelling types and quality designations
Element
a
Type 1 Type 2 Type 3
Aluminium-killed Stabilized interstitial-free
Carbon 0,05 0,02 0,008
Manganese 0,50 0,50 0,40
Phosphorus 0,040 0,040 0,040
Sulfur 0,040 0,030 0,030
b c
Nb, Ti, Va 0,15
a For some one-coat applications, the carbon content must be reduced to less than 0, 01 % by means of appropriate annealing
practices to obtain satisfactory enamelling performance. In such cases, since the decarburization process occurs after the melting
process, heat analysis is not appropriate and product analysis can be used to check the carbon content. When supplied from interstitial-
free steel, quality applications VE03 and VE04 can also qualify for enamelling application requiring reduced carbon levels.
b Microalloys are permitted to meet special customer requirements.
c Niobium, titanium and vanadium, or in various combinations, are made to combine with the carbon and nitrogen to produce
interstitial-free steel.
Table 2 — Limits on additional chemical elements, % (mass fraction)
a a ab ab c cd d
Cu Ni Cr Mo Nb V Ti
Element
max. max. max. max. max. max. max.
Heat analysis 0,20 0,20 0,15 0,06 0,008 0,008 0,008
Product analysis 0,23 0,23 0,19 0,07 0,018 0,018 0,018
Each of the elements listed in this table shall be included in the report of the heat analysis. When the amount of copper, nickel,
chromium or molybdenum present is less than 0,02 %, the analysis result may be reported as < 0,02 %.
a
The sum of copper, nickel, chromium and molybdenum shall not exceed 0,50 % on the heat analysis. When one or more of these
elements are specified, the sum does not apply, in which case, only the individual limits on the remaining elements apply.
b
The sum of chromium and molybdenum shall not exceed 0,16 % on heat analysis. When one or more of these elements are
specified, the sum does not apply; in which case, only the individual limits on the remaining elements apply.
c
For interstitial-free steels only, t
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.