ISO 5001:2007
(Main)Cold-reduced carbon steel sheet for vitreous enamelling
Cold-reduced carbon steel sheet for vitreous enamelling
ISO 5001:2007 specifies requirements for 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
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 5001
Fourth edition
2007-07-01
Cold-reduced carbon steel sheet for
vitreous enamelling
Tôles en acier au carbone laminées à froid pour émaillage par
vitrification
Reference number
ISO 5001:2007(E)
©
ISO 2007
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ISO 5001:2007(E)
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ii © ISO 2007 – All rights reserved
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ISO 5001:2007(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
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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 fourth edition cancels and replaces the third edition (ISO 5001:1999), which has been technically revised.
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INTERNATIONAL STANDARD ISO 5001:2007(E)
Cold-reduced carbon steel sheet for vitreous enamelling
1 Scope
1.1 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.
1.2 Sheet for vitreous enamelling 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.
1.3 Commercial-quality sheet (VE01) is intended for general fabricating purposes where sheet is used in
the flat form, or for bending or moderate forming.
1.4 Drawing-quality sheet (VE02, VE03, VE04 and VE05) is intended for drawing and severe forming. It is
furnished 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 1 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 (see 4.7);
VE05 — extra-deep-drawing quality (stabilized interstitial-free).
1.5 The designations in 1.3 and 1.4 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 stabilized interstitial-free.
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, Metallic materials — Tensile testing at ambient temperature
ISO 16162, Continuously cold-rolled steel sheet products — Dimensional and shape tolerances
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ISO 5001:2007(E)
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
3.2 Grades and qualities for vitreous enamelling
3.2.1
grade 1
extremely low carbon sheet suitable for direct cover coat enamelling and also for two-coat enamelling for
special applications (sag resistance)
NOTE The base metal of this grade loses strength after firing the enamel, and if this is a problem the producer should
be consulted.
3.2.2
grade 2
sheet suitable for two-coat enamelling
3.3
skin pass
final light cold rolling of cold-reduced fully processed sheet, the purpose of which 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.
4 Conditions of manufacture
4.1 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.
4.2 Chemical composition
The heat analysis for grades 1 and 2 shall be subject to agreement between the manufacturer and the
purchaser, and a report of the heat analysis to the purchaser or verification by the purchaser shall be in
accordance with 4.3.1 and 4.3.2. Because of the extremely low carbon of grade 1, as a result of special
processing, the carbon content of this grade is not subject to heat analysis; however, the purchaser may
check the carbon content to ensure no misapplication between grades 1 and 2.
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ISO 5001:2007(E)
4.3 Chemical analysis
4.3.1 Heat analysis
A heat analysis of each heat of steel shall be made by the manufacturer. When requested, only manganese,
phosphorous and sulfur need be reported to the purchaser or the purchaser's representative for grade 1. For
grade 2, carbon, manganese, phosphorus and sulfur need be reported to the purchaser or the purchaser's
representative when requested.
4.3.2 Product analysis
A product analysis may be made by the purchaser to verify the specified analysis of the semi-finished or
finished steel. It shall take into consideration any normal heterogeneity. A carbon determination for grade 1
may be made by the purchaser to verify the extremely low carbon content. Non-killed steels (such as rimmed
or capped steels) are not technologically suited to product analysis.
4.4 Weldability
The product is easily welded. Certain precautions may be advisable due to the very low hardness of grade 1
material.
4.5 Application
Steel sheet for vitreous enamelling shall be identified for fabrication by the name of the part or by the intended
application. Steel sheet of drawing quality (VE02, VE03, VE04 or VE05) may be produced to make an
identified part previously agreed upon between manufacturer and purchaser. In this case, the part name, the
details of fabrication, the vitreous enamelling practice and any special requirements (freedom from stretcher
strain or fluting) shall be specified and the mechanical properties of Table 1 do not apply.
4.6 Mechanical properties
Except when ordered as an identified part as explained in 4.5, the mechanical properties of the steel, at the
time the steel is made available for shipment, shall be as stated in Table 1. The properties shall be determined
on test pieces obtained in accordance with the requirements of Clause 6. Prolonged storage of the sheet can
cause a change in mechanical properties (increase in hardness and decrease in elongation, leading to a
decrease in drawability). To minimize this effect, quality VE04 or VE05 should be specified.
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ISO 5001:2007(E)
a
Table 1 — Mechanical property requirements (see 4.7)
c
A
b
R
m
d e
r n
Base metal quality min.
max.
% min. min.
MPa
Designation Name L = 80 mm L = 50 mm
0 0
f
VE01 Commercial 410 27 28 — —
VE02 Drawing 370 30 31 — —
VE03 Deep-drawing 350 34 35 — —
Deep-drawing
VE04 350 36 37 — —
aluminium-killed
Extra-deep-drawing
VE05 350 38 38 1,6 0,20
stabilized interstitial-free
a
R tensile strength
m
A percent elongation after fracture
L gauge length on test piece
0
r plastic strain ratio (indic
...
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