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BRITISH STANDARD
Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths — Tolerances on dimensions and form
The European Standard EN ISO 9445:2006 has the status of a British Standard
ICS 77.140.20; 77.140.50
12&23<,1*:,7+287%6,3(50,66,21(;&(37$63(50,77('%<&23<5,*+7/$:
BS EN ISO 9445:2006
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BS EN ISO 9445:2006
National foreword This British Standard is the official English language version of EN ISO 9445:2006. It is identical with ISO 9445:2002. It supersedes BS EN 10258:1997 and BS EN 10259:1997. The UK participation in its preparation was entrusted to Technical Committee ISE/30, Stainless steel, which has the responsibility to: —
aid enquirers to understand the text;
—
present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed;
—
monitor related international and European developments and promulgate them in the UK.
A list of organizations represented on this committee can be obtained on request to its secretary. Additional information The technical content of BS EN ISO 9445 is very similar to that of BS EN 10258:1997 and BS EN 10259:1997. BSI Technical Committee ISE/30 has been actively involved in the development of all three standards. However, it is of the opinion that there are two important disadvantages with the supersession of BS EN 10258:1997 and BS EN 10259:1997 by BS EN ISO 9445:2006, a single document. The committee would like to draw the attention of users to the points listed below: 1. Requirements for products derived from wide cold rolled strip (w 600–2 100 mm) and for products derived from narrow cold rolled strip (w < 600 mm) are both specified in BS EN ISO 9445. The committee is of the opinion that this could lead to confusion for users. In general, narrow cold rolled strip is used because very close tolerances can be made by this method of production, and smaller quantities can be easily produced. The wide strip production method is used for higher quantities, but generally to less demanding tolerances. 2. For wide strip, two alternative thickness tolerance tables are shown in EN ISO 9445:2006 (Tables 2 and 3), which use different measurement methods. One was taken from BS EN 10259:1997. The second method is based upon Japanese practice. The committee considers the two methods to be equally demanding. However, it is of the opinion that the inclusion of both could lead to confusion for users. Summary of pages This document comprises a front cover, an inside front cover, page i, a blank page, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 14, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006
© BSI 2006
ISBN 0 580 49034 3
Amendments issued since publication Amd. No.
Date
Comments
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BS EN ISO 9445:2006 Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
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EN ISO 9445
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
March 2006
ICS 77.140.20; 77.140.50
Supersedes EN 10258:1997 and EN 10259:1997
English Version
Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths - Tolerances on dimensions and form (ISO 9445:2002) Feuillards, larges bandes, tôles et feuillards coupés à longueur en acier inoxydable laminés à froid en continu Tolérances sur les dimensions et la forme (ISO 9445:2002)
Kontinuierlich gewalztes Kaltband, Kaltbreitband, Blech und Kaltband in Stäben aus nichtrostenden Stählen Tolerances on dimensions and form (ISO 9445:2002)
This European Standard was approved by CEN on 6 February 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
© 2006 CEN
All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
B-1050 Brussels
Ref. No. EN ISO 9445:2006: E
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EN ISO 9445:2006
Foreword The text of ISO 9445:2002 has been prepared by Technical Committee ISO/TC 17 "Steel” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 9445:2006 by Technical Committee ECISS/TC 23 "Steels for heat treatment, alloy steels and free-cutting steels - Qualities and dimensions", the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2006, and conflicting national standards shall be withdrawn at the latest by September 2006. This document supersedes EN 10258:1997 and EN 10259:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice The text of ISO 9445:2002 has been approved by CEN as EN ISO 9445:2006 without any modifications.
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EN ISO 9445:2006
INTERNATIONAL STANDARD
ISO 9445 Second edition 2002-11-01
Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths — Tolerances on dimensions and form Feuillards, larges bandes, tôles et feuillards coupés à longueur en acier inoxydable laminés à froid en continu — Tolérances sur les dimensions et la forme
Reference number ISO 9445:2002(E)
ii
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EN ISO 9445:2006
Contents
Page
Foreword .................................................................................................................................................................... iv 1
Scope.............................................................................................................................................................. 1
2
Normative reference...................................................................................................................................... 1
3
Terms and definitions ................................................................................................................................... 1
4
Information to be supplied by the purchaser ............................................................................................. 1
5
Type of delivery and delivery condition...................................................................................................... 2
6
Preferred thicknesses................................................................................................................................... 3
7
Tolerances on thickness .............................................................................................................................. 3
8
Tolerances on width...................................................................................................................................... 7
9
Preferred coil inner diameters for cold-rolled products ........................................................................... 8
10
Tolerances on length .................................................................................................................................... 8
11
Tolerances on edge camber......................................................................................................................... 9
12
Tolerances on squareness ......................................................................................................................... 10
13
Tolerances on flatness ............................................................................................................................... 11
14
Edge waviness tolerances for cold-rolled strip ....................................................................................... 11
15
Form of coils ................................................................................................................................................ 11
16
Ordered format for plate/sheet and cut lengths....................................................................................... 12
17
Measurement of thickness ......................................................................................................................... 12
18
Measurement of width ................................................................................................................................ 12
19
Measurement of length ............................................................................................................................... 12
20
Measurement of edge camber ................................................................................................................... 12
21
Measurement of squareness...................................................................................................................... 13
22
Measurement of flatness and waviness.................................................................................................... 14
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EN ISO 9445:2006
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 3. 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 International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9445 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 4, Heat treatable and alloy steels. This second edition cancels and replaces the first edition (ISO 9445:1990) as well as ISO 9447:1990, the contents of which have been combined and technically revised.
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EN ISO 9445:2006
Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths — Tolerances on dimensions and form
1
Scope
1.1 This International Standard specifies the tolerances on dimensions and form for continuously cold-rolled stainless steel narrow strip, in thicknesses of up to and including 3 mm and in rolling widths of less than 600 mm. It also applies to cut lengths taken from such strip. 1.2 This International Standard also specifies the tolerances on dimensions and form for continuously cold-rolled stainless steel wide strip and plate/sheet, in thicknesses from 0,3 mm to 8,0 mm and in rolling widths from 600 mm to 2 100 mm. It also applies to slit cold-rolled wide strip in widths less than 600 mm manufactured from wide strip by longitudinal slitting and to cut lengths manufactured from such strip.
2
Normative reference
The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 6929:1987, Steel products — Definitions and classification
3
Terms and definitions
For the purposes of this International Standard, the terms and definitions given in ISO 6929 shall apply.
4
Information to be supplied by the purchaser
4.1 It shall be the responsibility of the purchaser to specify all requirements that are necessary for products under this specification. Such requirements to be considered include, in the order listed, but not limited to, the following: a)
the type of delivery [see 5.2 a) to f)];
b)
the number of this International Standard, i.e. ISO 9445;
c)
the thickness, in millimetres, (if necessary accurate to two decimal places) and, if required, including the relevant code letter (F or P) for a fine or precision tolerance in the case of cold-rolled narrow strip and products obtained from such strip or including the relevant code letter (S) for a special tolerance in the case of coldrolled wide strip and products obtained from such strip;
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EN ISO 9445:2006
d)
for cold-rolled wide strip and products cut from it, the measurement of thickness method to be used, either method A in accordance with 17.2.2 and tolerances according to Table 2 with the relevant code letter (A) or method B in accordance with 17.2.3 and tolerances according to Table 3 with the relevant code letter (B);
e)
the width, in millimetres, and if required, including the relevant code letter (F or P) for a fine or precision tolerance in the case of cold-rolled narrow strip and products obtained from such strip or including the relevant code letter (S) for a special tolerance in the case of cold-rolled wide strip and products obtained from such strip;
f)
for cold-rolled wide strip and products obtained from such strip, the condition of the edges (M = mill edges, T = trimmed edges);
g)
for plate/sheet and cut lengths, the length, in millimetres, and if a special tolerance is required, the code letter S;
h)
for cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip, the code letter R where a restricted tolerance on edge camber is required;
i)
for cold-rolled plate/sheet and cut lengths, the code letter FS where a special tolerance is required for flatness.
EXAMPLE 1 Cold-rolled narrow strip according to this International Standard with a specified thickness of 0,25 mm, precision thickness tolerance (P), with a specified width of 250 mm, precision tolerance on width (P), and with restricted tolerance on edge camber (R). Cold-rolled narrow strip ISO 9445-0,25P × 250P-R EXAMPLE 2 Cut length obtained from slit cold-rolled wide strip according to this International Standard with a specified thickness of 1,5 mm, special thickness tolerance (S), measuring method A, with a specified width of 200 mm, special tolerance on width (S), with a specified length of 500 mm, special tolerance on length (S) and a special tolerance on flatness (FS). Cut length from slit cold-rolled wide strip ISO 9445-1,5SA × 200S × 500S-FS
4.2 In the absence of information in the order concerning special requirements for tolerances on dimension and shape [see 4.1 c), e), g), h) and i)], flat products covered by this International Standard shall be delivered according to the basic specifications of this International Standard, i.e. with normal tolerances.
5 5.1
Type of delivery and delivery condition General
In the absence of agreements at the time of enquiry and order concerning special requirements for the delivery conditions given in 5.3 and 5.4, flat products covered by this International Standard will be delivered according to the basic specifications of this International Standard.
5.2
Type of delivery
Flat products according to this International Standard can be supplied as a)
cold-rolled narrow strip (strip in rolled widths less than 600 mm);
b)
cut lengths from cold-rolled narrow strip [cut from cold-rolled narrow strip according to item 5.2 a)];
c)
cold-rolled wide strip (strip in rolled widths equal to or greater than 600 mm);
d)
cold-rolled plate/sheet [cut from cold-rolled wide strip according to item 5.2 c)];
e)
slit, cold-rolled wide strip [manufactured by longitudinal slitting of wide strip according to item 5.2 c)];
f)
cut lengths from slit, cold-rolled wide strip [cut from slit, cold-rolled wide strip according to item 5.2 e)].
2
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EN ISO 9445:2006
5.3 Delivery condition of cold-rolled narrow strip and products obtained from cold-rolled narrow strip 5.3.1 Cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip are usually supplied with cut edges. These products will have burrs caused by cutting. If there are special requirements for these edges, corresponding agreements shall be made on ordering. In this case, the strip is deemed to be cut almost free of burr if the height of the burr is less than 10 % of the product thickness. 5.3.2 By special agreement and depending on the technical equipment of the supplier, cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip can be delivered with special edges, e.g. deburred or rounded edges.
5.4 Delivery condition of cold-rolled wide strip and products obtained from cold-rolled wide strip Cold-rolled wide strip, plate/sheet cut from cold-rolled wide strip, slit cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip are usually supplied with mill or trimmed edges. These products may have burrs.
6
Preferred thicknesses
For cold-rolled wide strip and the products obtained from cold-rolled wide strip [see 5.2 c), d), e) and f)] the following preferred thicknesses exist: 0,30 mm; 0,40 mm; 0,50 mm; 0,60 mm; 0,70 mm; 0,80 mm; 1,00 mm; 1,20 mm; 1,50 mm; 2,00 mm; 2,50 mm; 3,00 mm; 4,00 mm; 5,00 mm; 6,00 mm.
7
Tolerances on thickness
7.1 Tolerances on thickness for cold-rolled narrow strip and products obtained from cold-rolled narrow strip The tolerances on thickness are given in Table 1.
7.2 Tolerances on thickness for cold-rolled wide strip and products obtained from cold-rolled wide strip The tolerances on thickness can be taken from Table 2 (see 17.2.2 — method A) or Table 3 (see 17.2.3 — method B). NOTE The two tables are necessary for recognizing different “customs and practices” in different countries with respect to measurement methods.
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EN ISO 9445:2006
Table 1 — Tolerances on specified thicknessa for cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip Dimensions in millimetres Tolerance on specified thickness for nominal width of
Specified thickness t
125 u w < 250
w < 125
250 u w < 600
Normal
Fine (F)
Precision (P)
Normal
Fine (F)
Precision (P)
Normal
Fine (F)
Precision (P)
0,05b u t < 0,10
± 0,10 t
± 0,06 t
± 0,04 t
± 0,12 t
± 0,10 t
± 0,08 t
± 0,15 t
± 0,10 t
± 0,08 t
0,10 u t < 0,15
± 0,010
± 0,008
± 0,006
± 0,015
± 0,012
± 0,008
± 0,020
± 0,015
± 0,010
0,15 u t < 0,20
± 0,015
± 0,010
± 0,008
± 0,020
± 0,012
± 0,010
± 0,025
± 0,015
± 0,012
0,20 u t < 0,25
± 0,015
± 0,012
± 0,008
± 0,020
± 0,015
± 0,010
± 0,025
± 0,020
± 0,012
0,25 u t < 0,30
± 0,017
± 0,012
± 0,009
± 0,025
± 0,015
± 0,012
± 0,030
± 0,020
± 0,015
0,30 u t < 0,40
± 0,020
± 0,015
± 0,010
± 0,025
± 0,020
± 0,012
± 0,030
± 0,025
± 0,015
0,40 u t < 0,50
± 0,025
± 0,020
± 0,012
± 0,030
± 0,020
± 0,015
± 0,035
± 0,025
± 0,018
0,50 u t < 0,60
± 0,030
± 0,020
± 0,014
± 0,030
± 0,025
± 0,015
± 0,040
± 0,030
± 0,020
0,60 u t < 0,80
± 0,030
± 0,025
± 0,015
± 0,035
± 0,030
± 0,018
± 0,040
± 0,035
± 0,025
0,80 u t < 1,00
± 0,030
± 0,025
± 0,018
± 0,040
± 0,030
± 0,020
± 0,050
± 0,035
± 0,025
1,00 u t < 1,20
± 0,035
± 0,030
± 0,020
± 0,045
± 0,035
± 0,025
± 0,050
± 0,040
± 0,030
1,20 u t < 1,50
± 0,040
± 0,030
± 0,020
± 0,050
± 0,035
± 0,025
± 0,060
± 0,045
± 0,030
1,50 u t < 2,00
± 0,050
± 0,035
± 0,025
± 0,060
± 0,040
± 0,030
± 0,070
± 0,050
± 0,035
2,00 u t < 2,50
± 0,050
± 0,035
± 0,025
± 0,070
± 0,045
± 0,030
± 0,080
± 0,060
± 0,040
2,50 u t u 3,00
± 0,060
± 0,045
± 0,030
± 0,070
± 0,050
± 0,035
± 0,090
± 0,070
± 0,045
a By agreement, the tolerances may alternatively be totally + or totally − or unevenly distributed. In any case, the total range of the tolerance shall remain as in the table. b
4
For thicknesses below 0,05 mm, the values for the tolerances are to be agreed at the time of enquiry and order.
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EN ISO 9445:2006
Table 2 — Tolerances on specified thickness for cold-rolled wide strip, plate/sheet cut from cold-rolled wide strip, slit cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip Dimensions in millimetres Normal tolerances for a specified width of
Specified thickness
Special tolerances (S) for a specified width of
t
w u 1 000
1 000 < w u 1 300
1 300 < w u 2 100
w u 1 000
1 000 < w u 1 300
1 300 < w u 2 100
t < 0,30
± 0,030
—
—
± 0,020
—
—
0,30 u t < 0,50
± 0,04
± 0,04
—
± 0,025
± 0,030
—
0,50 u t < 0,60
± 0,045
± 0,05
—
± 0,030
± 0,035
—
0,60 u t < 0,80
± 0,05
± 0,05
—
± 0,035
± 0,040
—
0,80 u t < 1,00
± 0,055
± 0,06
± 0,06
± 0,040
± 0,045
± 0,050
1,00 u t < 1,20
± 0,06
± 0,07
± 0,07
± 0,045
± 0,045
± 0,050
1,20 u t < 1,50
± 0,07
± 0,08
± 0,08
± 0,050
± 0,055
± 0,060
1,50 u t < 2,00
± 0,08
± 0,09
± 0,10
± 0,055
± 0,060
± 0,070
2,00 u t < 2,50
± 0,09
± 0,10
± 0,11
—
—
—
2,50 u t < 3,00
± 0,11
± 0,12
± 0,12
—
—
—
3,00 u t < 4,00
± 0,13
± 0,14
± 0,14
—
—
—
4,00 u t < 5,00
± 0,14
± 0,15
± 0,15
—
—
—
5,00 u t < 6,50
± 0,15
± 0,15
± 0,16
—
—
—
6,50 u t u 8,00
± 0,16
± 0,17
± 0,17
—
—
—
NOTE
The tolerances are measured in accordance with 17.2.2 — method A.
5
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EN ISO 9445:2006
Table 3 — Tolerances on specified thickness for cold-rolled wide strip, plate/sheet cut from cold-rolled wide strip, slit cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip Dimensions in millimetres Normal tolerances for a specified width of
Specified thickness
Special tolerances (S) for a specified width of
t
w u 1 000
1 000 < w u 1 300
1 300 < w u 2 100
w u 1 000
1 000 < w u 1 300
1 300 < w u 2 100
t < 0,30
± 0,030
—
—
± 0,030
—
—
0,30 u t < 0,40
± 0,04
± 0,04
—
± 0,030
± 0,035
—
0,40 u t < 0,50
± 0,04
± 0,04
—
± 0,035
± 0,035
—
0,50 u t < 0,60
± 0,045
± 0,05
—
± 0,035
± 0,035
—
0,60 u t < 0,80
± 0,05
± 0,05
—
± 0,040
± 0,040
—
0,80 u t < 1,00
± 0,055
± 0,06
± 0,07
± 0,040
± 0,050
± 0,050
1,00 u t < 1,20
± 0,06
± 0,07
± 0,08
± 0,050
± 0,055
± 0,060
1,20 u t < 1,50
± 0,08
± 0,08
± 0,10
± 0,055
± 0,060
± 0,060
1,50 u t < 2,00
± 0,08
± 0,09
± 0,11
± 0,065
± 0,070
± 0,080
2,00 u t < 2,50
± 0,09
± 0,11
± 0,13
—
—
—
2,50 u t < 3,00
± 0,11
± 0,13
± 0,15
—
—
—
3,00 u t < 4,00
± 0,14
± 0,15
± 0,16
—
—
—
4,00 u t < 5,00
± 0,15
± 0,17
± 0,19
—
—
—
5,00 u t < 6,00
± 0,17
± 0,20
± 0,23
—
—
—
6,00 u t u 8,00
± 0,17
± 0,22
± 0,25
—
—
—
NOTE
6
The tolerances are measured in accordance with 17.2.3 — method B.
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EN ISO 9445:2006
8
Tolerances on width
8.1 Tolerances on width for cold-rolled narrow strip and products obtained from cold-rolled narrow strip The tolerances on width are given in Table 4. Table 4 — Tolerances on widtha for cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip Dimensions in millimetres Specified width Specified thickness t
t < 0,25
w 40 < w u 125
w u 40 Normal
Fine (F)
+ 0,17
+ 0,13
Precision Normal (P) + 0,10
1,00 u t < 1,50
0 + 0,20 0 + 0,25 0 + 0,25 0
0 + 0,15 0 + 0,22 0 + 0,22 0
1,50 u t < 2,50
—
—
—
2,50 u t u 3,00
—
—
—
0,25 u t < 0,50 0,50 u t < 1,00
0 + 0,12 0 + 0,15 0
+ 0,15 0
+ 0,20
Fine (F) + 0,15
0 + 0,25 0 + 0,25 0 + 0,30 0 + 0,40 0 + 0,50 0
0 + 0,20 0 + 0,22 0 + 0,25 0
+ 0,25 0
+ 0,30 0
125 < w u 250
Precision Normal (P) + 0,12
0 + 0,15 0 + 0,17 0 + 0,17 0 + 0,20 0 + 0,25 0
+ 0,25
0 + 0,30 0 + 0,40 0 + 0,50 0 + 0,60 0
+ 0,60 0
Fine (F)
250 < w u 600
Precision Normal (P)
+ 0,20
0 + 0,22 0 + 0,25 0 + 0,30 0 + 0,40 0 + 0,40 0
+ 0,15
0 + 0,17 0 + 0,20 0 + 0,22 0 + 0,25 0 + 0,25 0
+ 0,50
0 + 0,60 0 + 0,70 0 + 1,0 0 + 1,0 0 + 1,2 0
Fine (F)
Precision (P)
+ 0,50
+ 0,40
0 + 0,50 0 + 0,60 0 + 0,70 0 + 0,80 0 + 1,0 0
0
+ 0,40 0
+ 0,50 0
+ 0,60 0
+ 0,60 0
+ 0,80 0
a By agreement, the tolerance may alternatively be either equally ± or all −. In both cases, the total range of the tolerance shall remain as in Table 4.
8.2 Tolerances on width for cold-rolled wide strip and products obtained from cold-rolled wide strip The tolerances on width are given in Table 5 (mill edges) and Table 6 (trimmed edges). Table 5 — Tolerances on width for cold-rolled wide strip and sheet/plate cut from cold-rolled wide strip with mill edges Dimensions in millimetres Tolerances for a specified width of 600 u w < 1 000
+ 25 0
1 000 u w < 1 500
1 500 u w
+ 30 0
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EN ISO 9445:2006
Table 6 — Tolerances on width for cold-rolled wide strip, plate/sheet cut from cold-rolled wide strip, slit cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip with trimmed edges Dimensions in millimetres Normal tolerancesa for a specified width of
Specified thickness t t < 1,00 1,00 u t < 1,50 1,50 u t < 2,50 2,50 u t < 3,50 3,50 u t u 8,00
Special tolerancesa (S) for a specified width of
w u 125b
125 < w u 250b
250 < w u 600b
600 < w u 1 000b
1 000 < w u 2 100b
w u 125
125 < w u 250
250 < w u 600
+ 0,5
+ 0,5
+ 0,7
+ 1,5
+ 2,0
+ 0,3
+ 0,3
+ 0,6
+ 0,7
+ 0,7
+ 1,0
+ 1,5
+ 2,0
+ 0,4
+ 0,5
+ 0,7
+ 1,0
+ 1,0
+ 1,2
+ 2,0
+ 2,5
+ 0,6
+ 0,7
+ 0,9
+ 1,2
+ 1,2
+ 1,5
+ 3,0
+ 3,0
+ 0,8
+ 0,9
+ 1,0
+ 2,0
+ 2,0
+ 2,0
+ 4,0
+ 4,0
—
—
—
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
a By special agreement, products can be supplied with permissible undersizes on the specified width. In this case, the values in Table 6 apply as the oversize plus undersize range. b
9 9.1
For material with edges re-cut by shearing, the tolerances on width may, by agreement, be increased to 5 mm.
Preferred coil inner diameters for cold-rolled products Preferred coil inner diameters for cold-rolled narrow strip
The inside diameter of the coil shall be decided by mutual agreement. Preferred inside diameters of coils are approximately 300 mm, 400 mm, 500 mm and 600 mm with a limitation for the diameter 300 mm which is not available for strip thicknesses above 2,0 mm.
9.2
Preferred coil inner diameters for cold-rolled wide strip and slit cold-rolled wide strip
The inside diameter of the coil shall be decided by mutual agreement. Preferred inside diameters of coils are approximately 500 mm and approximately 600 mm; in the case of slit cold-rolled wide strip, approximately 400 mm may also be available.
10 Tolerances on length 10.1 Tolerances on length for cut lengths obtained from cold-rolled narrow strip The tolerances on length are given in Table 7. Table 7 — Length tolerances for cut lengths obtained from cold-rolled narrow strip Dimensions in millimetres
8
Tolerances
Specified length l
Normal
Special (S)
l u 2 000
+3
+ 1,5
2 000 < l u 4 000
+5
+2
0 0
0
0
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EN ISO 9445:2006
10.2 Tolerances on length for plate/sheet cut from cold-rolled wide strip and for cut lengths obtained from slit cold-rolled wide strip The tolerances on length are given in Table 8. Table 8 — Length tolerances for plate/sheet cut from cold-rolled wide strip and for cut lengths obtained from slit cold-rolled wide strip Dimensions in millimetres Tolerances
Specified length l
Normal
Special (S)
l u 2 000
+5
+3
2 000 < l
+ 0,002 5 × l
+ 0,001 5 × l
0
0
0
0
11 Tolerances on edge camber 11.1 Edge camber tolerances for cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip The edge camber tolerances are given in Table 9. These tolerances do not apply to material supplied in the work-hardened condition, for which any requirement shall be agreed between manufacturer and purchaser. Table 9 — Tolerances on edge camber for cold-rolled narrow strip and cut lengths obtained from cold rolled narrow strip Dimensions in millimetres Edge camber tolerancesa for measuring lengths
Specified width w
1 000
2 000 Normal
a
1 000
2 000
Restricted (R)
10 u w < 25
4
16
1,5
6
25 u w < 40
3
12
1,25
5
40 u w < 125
2
8
1,0
4
125 u w < 600
1,5
6
0,75
3
If applicable, both measuring lengths shall be used.
11.2 Edge camber tolerances for cold-rolled wide strip and products obtained from cold-rolled wide strip The edge camber tolerances are given in Table 10. These tolerances do not apply to material supplied in the work-hardened condition, for which any requirement shall be agreed between manufacturer and purchaser. NOTE This requirement can be verified on plate/sheet and cut lengths only. However, products cut from strip should also fulfil this requirement.
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EN ISO 9445:2006
Table 10 — Tolerances on edge camber for cold-rolled wide strip, plate/sheet cut from cold-rolled wide strip, slit cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip Dimensions in millimetres Specified width w
a
Edge camber tolerancesa for measuring lengths 1 000
2 000
10 u w < 40
2,5
10
40 u w < 125
2
8
125 u w < 600
1,5
6
600 u w u 2 100
1
4
If applicable, both measuring lengths shall be used.
12 Tolerances on squareness 12.1 Tolerances on squareness for cut lengths obtained from cold-rolled narrow strip The out-of-squareness for cut lengths obtained from cold-rolled narrow strip in widths of 250 mm and above shall not exceed 0,5 % of the actual width of the product. For cut lengths obtained from cold-rolled narrow strip in widths less than 250 mm, the value shall be agreed at the time of enquiry and order.
12.2 Tolerances on squareness for plate/sheet obtained from cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip The out-of-squareness for plate/sheet obtained from cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip shall not exceed 0,5 % of the width of the product, or alternatively shall not exceed the values listed in Table 11. Table 11 — Tolerances on squareness for plate/sheet obtained from cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip, in terms of the difference between the diagonal lengths of the product Dimensions in millimetres Length
10
l
Maximum difference in diagonal lengths
l u 3 000
6
3 000 < l u 6 000
10
l > 6 000
15
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EN ISO 9445:2006
13 Tolerances on flatness 13.1 Tolerances on flatness for cut lengths obtained from cold-rolled narrow strip The flatness tolerance for cut lengths obtained from cold-rolled narrow strip shall not exceed 10 mm for normal cases and 7 mm where a special tolerance (FS) is required. This requirement does not apply to material supplied in the work-hardened condition and in condition 2D (cold-rolled, heat-treated, pickled).
13.2 Tolerances on flatness for plate/sheet obtained from cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip The flatness tolerances for plate/sheet obtained from cold-rolled wide strip and cut lengths obtained from slit coldrolled wide strip shall not exceed 10 mm for normal cases and 7 mm where a special tolerance (FS) is required for lengths up to and including 3 000 mm, and 12 mm for normal cases and 8 mm where a special tolerance (FS) is required for lengths greater than 3 000 mm. This requirement does not apply to material supplied in the work-hardened condition and in condition 2D (cold-rolled, heat-treated, pickled).
14 Edge waviness tolerances for cold-rolled strip 14.1 For skin-passed or stretch-levelled cold-rolled narrow strip, the waviness of the edges, i.e. the ratio of wave height (h) to wave length (l) shall be a maximum of 0,03 for specified thicknesses up to 1,00 mm and a maximum of 0,02 for specified thicknesses over 1,00 mm (see Figure 1). This requirement does not apply to material supplied in the work-hardened condition and in condition 2D (cold-rolled, heat-treated, pickled). 14.2 For cold-rolled wide strip or slit cold-rolled wide strip, the waviness of the edges, i.e. the ratio of wave height (h) to wave length (l) shall be a maximum of 0,03 for all thicknesses (see Figure 1). This requirement does not apply to material supplied in the work-hardened condition and in condition 2D (cold-rolled, heat-treated, pickled).
h/l = waviness
Figure 1 — Edge waviness tolerances for cold-rolled strip
15 Form of coils The coils delivered in accordance with this International Standard shall be tightly wound, as round as possible and with straight edges. Gradual displacement of the edge of the strip to one side shall not exceed 35 mm in the case of trimmed (slit) edges and 70 mm in the case of mill (as rolled) edges.
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EN ISO 9445:2006
16 Ordered format for plate/sheet and cut lengths When ordering, an agreement may be made that the ordered format be contained in every piece supplied. In this case, the tolerances on width, length, edge camber and out-of-square shall be agreed at the time of enquiry and order.
17 Measurement of thickness 17.1 Measurement of thickness for cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip The thickness may be measured at any arbitrarily chosen point on the product at least 10 mm from the edges. For widths up to and including 20 mm, it shall be measured at the centre of the product width. When ordering fine (F) or precision (P) thickness tolerances, it can be agreed that the permissible deviations from thickness shall be maintained over the whole width of the product.
17.2 Measurement of thickness for cold-rolled wide strip, plate/sheet cut from cold-rolled wide strip, slit cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip 17.2.1 The two methods given in 17.2.2 (method A) and 17.2.3 (method B) are alternatives, for use with Tables 2 and 3 respectively. 17.2.2 Method A: The thickness is measured at any point located more than 20 mm from the edges in the case of slit edges and at any point located more than 30 mm from the edges in the case of mill edges, if the tolerances according to Table 2 are chosen. 17.2.3 Method B: The thickness is measured at any point located more than 15 mm from the edges in the case of slit edges and at any point located more than 25 mm from the edges in the case of mill edges, if the tolerances according to Table 3 are chosen. 17.2.4 In the case of slit cold-rolled wide strip and cut lengths having a width of 30 mm or below, the position of measurement shall be at the middle axis.
18 Measurement of width The width is measured perpendicularly to the rolling direction of the product.
19 Measurement of length The length of plate/sheet or cut lengths is measured along the rolling direction of the product.
20 Measurement of edge camber 20.1 Edge camber is the greatest deviation of a side edge from a straight line, the measurement being taken on the concave side with a straightedge (see Figure 2). 20.2 Edge camber is not normally measured by the manufacturer, unless compliance is in doubt. If edge camber is measured, this shall be done at a minimum distance of 3 laps from the end of the coil for cold-rolled narrow strip.
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EN ISO 9445:2006
Key 1 2
Edge camber Side edge (concave side)
3
Straightedge Rolling direction
a
Figure 2 — Measurement of edge camber
21 Measurement of squareness 21.1 Out-of-square is the greatest deviation of an end edge from a straight edge of a square placed at right angles to a side and touching one corner (see Figure 3). 21.2 For sheet obtained from cold-rolled wide strip and cut lengths obtained from slit cold-rolled wide strip, the out-of-squareness may alternatively be measured by taking the difference between the diagonal lengths. 21.3 The out-of-squareness is not normally measured by the manufacturer, unless compliance is in doubt.
Key 1 2
Out-of-square Square
3
Side edge Rolling direction
a
Figure 3 — Measurement of out-of-squareness
13
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EN ISO 9445:2006
22 Measurement of flatness and waviness 22.1 Flatness tolerances can be measured in the following ways. a)
For maximum deviation from a flat horizontal surface, with the product lying under its own mass on a flat surface, the maximum deviation from flatness is the maximum distance between the lower surface of the product and the flat horizontal surface.
b)
To measure the flatness, the product shall be laid on an approximately flat surface. Deviation with respect to flatness shall be taken as the greatest distance between the product and a straight-edge placed upon it. The straight-edge should be either 1 000 mm or 2 000 mm long. It may be placed on the product at any position and in any direction. Only the position of the points of contact of product and straight-edge shall be taken into account.
Unless otherwise agreed, the choice of measurement method is left to the manufacturer. 22.2 The measurement of waviness is only made on edges. 22.3 Flatness and waviness are not normally measured by the manufacturer, unless compliance is in doubt.
14
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BS EN ISO 9445:2006
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