ISO 5952:2005

Continuously hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance

ISO 5952:2005 applies to continuously hot-rolled steel sheet of structural quality having improved atmospheric corrosion resistance, also known as weather-resistant structural steel. The product is intended for applications where requirements are for mechanical properties and increased resistance to atmospheric corrosion. It is generally used in the delivered condition and is intended for bolted, riveted or welded structures.

Tôles en acier de construction laminées à chaud en continu à résistance améliorée à la corrosion atmosphérique

General Information

• Status: Withdrawn
• Publication Date: 16-Feb-2005
• Withdrawal Date: 16-Feb-2005
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: ISO/TC 17/SC 12 - Continuous mill flat rolled products
• Drafting Committee: ISO/TC 17/SC 12 - Continuous mill flat rolled products
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 03-Feb-2011

Relations

• Revised: ISO 5952:2011 - Continuously hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance
• Effective Date: 10-Jan-2009
• Revises: ISO 5952:1998 - Continuously hot-rolled steel sheet of structural quality with improved atmospheric corrosion resistance
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 5952
Third edition
2005-02-15

Continuously hot-rolled steel sheet of
structural quality with improved
atmospheric corrosion resistance
Tôles en acier de construction laminées à chaud en continu à
résistance améliorée à la corrosion atmosphérique




Reference number
ISO 5952:2005(E)
©
ISO 2005

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ISO 5952:2005(E)
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ii © ISO 2005 – All rights reserved

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ISO 5952:2005(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Terms and definitions. 2
4 Surface characteristics. 2
4.1 Surface condition. 2
4.2 Oiling . 2
5 Conditions of manufacture . 3
5.1 Steelmaking . 3
5.2 Chemical composition. 3
5.3 Chemical analysis . 3
5.4 Weldability . 4
5.5 Application. 4
5.6 Mechanical properties . 4
5.7 Corrosion resistance . 4
6 Dimensional tolerances. 4
7 Tensile test sampling. 4
8 Tensile test requirements. 4
9 Retests . 5
9.1 Machining and flaws. 5
9.2 Elongation. 6
9.3 Additional tests . 6
10 Resubmission. 6
11 Workmanship . 6
12 Inspection and acceptance . 6
13 Coil size. 6
14 Marking. 7
15 Information to be supplied by the purchaser.7
Annex A (informative) Guidelines for estimating the atmospheric corrosion resistance of low-
alloy steels. 8
Annex B (informative) Additional information for the use of steel with improved atmospheric
corrosion resistance. 9
Bibliography . 10

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ISO 5952:2005(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 5952 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 12, Continuous mill flat
rolled products.
This third edition cancels and replaces the second edition (ISO 5952:1998), which has been technically
revised.

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INTERNATIONAL STANDARD ISO 5952:2005(E)

Continuously hot-rolled steel sheet of structural quality with
improved atmospheric corrosion resistance
1 Scope
1.1 This International Standard applies to continuously hot-rolled steel sheet (see 3.2) of structural quality
having improved atmospheric corrosion resistance, also known as weather-resistant structural steel. It is
produced in the grades and classes listed in Tables 1 and 2. The product is intended for applications where
requirements are for mechanical properties and increased resistance to atmospheric corrosion. It is generally
used in the delivered condition and is intended for bolted, riveted or welded structures.
1.2 This product is commonly produced in the range of thicknesses 1,6 mm up to and including 12,5 mm
and widths of 600 mm and over, in coils and cut lengths.
1.3 Hot-rolled sheet less than 600 mm wide may be slit from wide sheet and will be considered as sheet.
NOTE Hot-rolled sheet up to but not including 3 mm in thickness is commonly known as sheet. Hot-rolled sheet
3 mm and over in thickness is commonly known as either “sheet” or “plate”.
1.4 This International Standard does not cover the following steel qualities:
 steels intended for boilers or pressure vessels, or steels designated as commercial quality or drawing
qualities (see ISO 3573);
 steels produced on reversing mills and designated as improved atmospheric corrosion resistance (see
ISO 4952);
 steels designated as structural quality (see ISO 4995), or high yield strength structural quality (see
ISO 4996);
 steels designated as higher yield strength with improved formability (see ISO 5951).
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 148:1983, Steel — Charpy impact test (V-notch)
ISO 6892:1998, Metallic materials — Tensile testing at ambient temperature
ISO 16160:2000, Continuously hot-rolled steel sheet products — Dimensional and shape tolerances
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ISO 5952:2005(E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
improved atmospheric corrosion resistance
a characteristic achieved by intentional addition of a certain number of alloying elements such as P, Cu, Cr, Ni,
etc.; providing a chemical composition which promotes the formation of a protective oxide layer on the product
NOTE The degree of corrosion resistance is based on data acceptable to the purchaser.
3.2
hot-rolled steel sheet
a product obtained by rolling heated steel through a continuous-type wide strip mill to the required sheet
thickness
NOTE The product has a surface covered with oxide or scale resulting from the hot-rolling operation.
3.3
hot-rolled descaled steel sheet
hot-rolled steel sheet from which oxide or scale has been removed by pickling in an acid solution or by
mechanical means such as grit blasting
NOTE Some change in properties may result from mechanical descaling.
3.4
mill edge
a normal edge without any definite contour produced in hot rolling
NOTE Untrimmed edges may contain some irregularities, such as cracked or torn edges or thin (feathered) edges.
3.5
sheared edge
a normal edge obtained by shearing, slitting or trimming a mill edge product
NOTE 1 Normal processing does not necessarily provide a definite positioning of the slitting burr.
NOTE 2 Material is normally supplied as described in 3.4 and 3.5. Other edges may be supplied as agreed upon.
4 Surface characteristics
4.1 Surface condition
Oxide or scale in hot-rolled steel sheet is subject to variations in thickness, adherence and colour. Removal of
the oxide or scale by pickling or blast cleaning may disclose surface imperfections not readily visible prior to
this operation.
4.2 Oiling
As a deterrent to rusting, a coating of oil is usually applied to hot-rolled, descaled steel sheet, but sheet may
be furnished unoiled, if required. The oil is not intended as a forming lubricant and shall be easily removable
with degreasing chemicals.
When requested, the manufacturer shall advise the purchaser which type of oil has been used.
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ISO 5952:2005(E)
5 Conditions of manufacture
5.1 Steelmaking
Unless otherwise agreed upon, the processes used in making the steel and in manufacturing hot-rolled sheet
are left to the discretion of the manufacturer. On request, the purchaser shall be informed of the steelmaking
process being used.
5.2 Chemical composition
5.2.1 The chemical composition (heat analysis) shall conform to the values given in Table 1, unless
otherwise agreed between the interested parties.
5.2.2 When selecting the grade or chemical composition to be used, attention should be directed to the
appropriate welding procedure to be followed (see 5.4).
5.3 Chemical analysis
5.3.1 Heat analysis:
An analysis of each heat of steel shall be made by the manufacturer to determine compliance with the
requirements given in Table 1. When requested, at the time of ordering, this analysis shall be reported to the
purchaser or his representative.
Table 1 — Chemical composition (heat analysis) (normal standard compositions, see 5.2) %
a b
Grade C Mn Si P S Cu Ni Cr Mo Zr
Class Method
HSA B NE 0,13 0,20 to 0,100 to 0,040 0,035 0,25 to 0,65 0,40 to
235W D CS max. 0,60 0,40 max. max. 0,55 max. 0,80
c c
HSA B NE 0,18 1,25 015 to 0,035 0,035 0,30 to 0,05 to 0,45 to
245W D CS max. max. 0,65 max. max. 0,50 0,30 0,75
HSA A NE 0,12 1,00 0,20 to 0,06 to 0,035 0,25 to 0,65, 0,30 to
355W1 D CS max. max. 0,75 0,15 max. 0,55 max. 1,25
HSA C NE 0,16 0,50 to 0,50 0,035 0,035 0,25 to 0,65 0,40 to 0,30 0,15
355W2 D CS max. 1,50 max. max. max. 0,55 max. 0,80 max. max.
c c
HSA B NE 0,18 1,40 0,15 to 0,035 0,035 0,30 to 0,05 to 0,45 to
365W D CS max. max. 0,65 max. max. 0,50 0,30 0,75
NOTE Each grade may contain one or more microalloying elements such as vanadium, titanium, niobium, etc.
a
Class A steels satisfy only moderate loading conditions.
Class B steels are intended for use in welded structures or structural parts, subjected to normal loading conditions.
Class C steels are to be used in cases where, owing to loading conditions, and the general design of the structure, some resistance
to brittle fracture is necessary.
Class D steels are to be used for structures or structural parts where, owing to loading conditions and the general design of the
structure, a high resistance to brittle fracture is necessary.
b
NE — non-rimming
CS - aluminum killed (0,020 % minimum total aluminum)
c
Total content of Mo, Nb, Ti, V and Zr not to exceed 0,15 %.

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ISO 5952:2005(E)
5.3.2 Product analysis
A product analysis may be made by
...