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1、BRITISH STANDARD BS EN 10131:2006 Cold rolled uncoated and zinc or zinc-nickel electrolytically coated low carbon and high yield strength steel flat products for cold forming Tolerances on dimensions and shape The European Standard EN 10131:2006 has the status of a British Standard ICS 77.140.50 BS
2、EN 10131:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48668 0 National foreword This British Standard is the official English language version of EN 10131:2006. It supersedes BS EN 10131:1991 which is
3、withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/10, Flat rolled steels products, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards whic
4、h 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 publicat
5、ion 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. aid enquirers to understand the text; present to the responsible international/
6、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. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pa
7、ges 2 to 12, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments W - - - - - - - - - - - 7- 6- 6- 7 - 7-7 7- - - - - - D - D - 1 200 to 1 500 1500 1 200 1 200
8、 to 1 500 1 500 = 0,35 to 0,40 0,03 0,04 0,05 0,020 0,025 0,030 0,40 to 0,60 0,03 0,04 0,05 0,025 0,030 0,035 0,60 to 0,80 0,04 0,05 0,06 0,030 0,035 0,040 0,80 to 1,00 0,05 0,06 0,07 0,035 0,040 0,050 1,00 to 1,20 0,06 0,07 0,08 0,040 0,050 0,060 1,20 to 1,60 0,08 0,09 0,10 0,050 0,060 0,070 1,60 t
9、o 2,00 0,10 0,11 0,12 0,060 0,070 0,080 2,00 to 2,50 0,12 0,13 0,14 0,080 0,090 0,100 2,50 to 3,00 0,15 0,15 0,16 0,100 0,110 0,120 a The thickness tolerances in the region of cold rolled welds may be increased by a maximum of 50 % over a length of 10 metres. This increase is applicable to all thick
10、nesses and, unless otherwise agreed at the time of order, to normal and special tolerances over or under. Table 2 Tolerances on thickness for steel grades with a specified minimum yield strength 260 MPa Re 1200 to 1500 1500 1 200 1 200 to 1 500 1 500 = 0,35 to 0,40 0,04 0,05 0,06 0,025 0,030 0,035 0
11、,40 to 0,60 0,04 0,05 0,06 0,030 0,035 0,040 0,60 to 0,80 0,05 0,06 0,07 0,035 0,040 0,050 0,80 to 1,00 0,06 0,07 0,08 0,040 0,050 0,060 1,00 to 1,20 0,07 0,08 0,10 0,050 0,060 0,070 1,20 to 1,60 0,09 0,11 0,12 0,060 0,070 0,080 1,60 to 2,00 0,12 0,13 0,14 0,070 0,080 0,100 2,00 to 2,50 0,14 0,15 0,
12、16 0,100 0,110 0,120 2,50 to 3,00 0,17 0,18 0,18 0,120 0,130 0,140 a The thickness tolerances in the region of cold rolled welds may be increased by a maximum of 50 % over a length of 10 metres. This increase is applicable to all thicknesses and, unless otherwise agreed at the time of order, to norm
13、al and special tolerances over or under. 1) 1 MPa = 1 N/mm2. EN 10131:2006 (E) 7 Table 3 Tolerances on thickness for steel grades with a specified minimum yield strength 340 MPa Re 420 MPa1) Dimensions in millimetres Nominal thickness Normal tolerances a for a nominal width w Special tolerances (S)
14、a for a nominal width w 1200 b 1 200 to 1 500 1500 1200 b 1 200 to 1 500 1 500 = 0,35 to 0,40 0,04 0,05 0,06 0,030 0,035 0,040 0,40 to 0,60 0,05 0,06 0,07 0,035 0,040 0,050 0,60 to 0,80 0,06 0,07 0,08 0,040 0,050 0,060 0,80 to 1,00 0,07 0,08 0,10 0,050 0,060 0,070 1,00 to 1,20 0,09 0,10 0,11 0,060 0
15、,070 0,080 1,20 to 1,60 0,11 0,12 0,14 0,070 0,080 0,100 1,60 to 2,00 0,14 0,15 0,17 0,080 0,100 0,110 2,00 to 2,50 0,16 0,18 0,19 0,110 0,120 0,130 2,50 to 3,00 0,20 0,20 0,21 0,130 0,140 0,150 a The thickness tolerances in the region of cold rolled welds may be increased by a maximum of 50 % over
16、a length of 10 metres. This increase is applicable to all thicknesses and, unless otherwise agreed at the time of order, to normal and special tolerances over or under. Table 4 Tolerances on thickness for steel grades with a specified minimum yield strength 420 MPa 1 200 to 1 500 1 500 1200 1 200 to
17、 1 500 1 500 = 0,35 to 0,40 0,05 0,06 0,07 0,035 0,040 0,050 0,40 to 0,60 0,05 0,07 0,08 0,040 0,050 0,060 0,60 to 0,80 0,06 0,08 0,10 0,050 0,060 0,070 0,80 to 1,00 0,08 0,10 0,11 0,060 0,070 0,080 1,00 to 1,20 0,10 0,11 0,13 0,070 0,080 0,100 1,20 to 1,60 0,13 0,14 0,16 0,080 0,100 0,110 1,60 to 2
18、,00 0,16 0,17 0,19 0,100 0,110 0,130 2,00 to 2,50 0,19 0,20 0,22 0,130 0,140 0,160 2,50 to 3,00 0,22 0,23 0,24 0,160 0,170 0,180 a The thickness tolerances in the region of cold rolled welds may be increased by a maximum of 50 % over a length of 10 metres. This increase is applicable to all thicknes
19、ses and, unless otherwise agreed at the time of order, to normal and special tolerances over or under. 1) 1 MPa = 1 N/mm2. EN 10131:2006 (E) 8 7 Tolerances on width 7.1 General Width is measured perpendicularly to the longitudinal axis of the product. The tolerances on width of flat products in low
20、carbon and high yield strength steels are given in 7.2 for sheet and wide strip and in 7.3 for slit wide strip of width less than 600 mm. 7.2 Sheet and wide strip The tolerances on width of sheet and wide strip shall be as given in Table 5. Table 5 Tolerances on width of sheet and wide strip Dimensi
21、ons in millimetres Nominal width Normal tolerances Special tolerances (S) w Under Over Under Over w 1200 0 + 4 0 + 2 1200 1500 0 + 6 0 + 3 7.3 Slit wide strip of width less than 600 mm The tolerances on width of slit wide strip of width less than 600 mm shall be as given in Table 6. Table 6 Toleranc
22、es on slit wide strip of width less than 600 mm Dimensions in millimetres Tolerance class Nominal thickness Nominal width t w 125 125 w 250 250 w 400 400 w 600 Under Over Under Over Under Over Under Over t 0,6 0 + 0,4 0 + 0,5 0 + 0,7 0 + 1,0 0,6 t 1,0 0 + 0,5 0 + 0,6 0 + 0,9 0 + 1,2 1 t 2 0 + 0,6 0
23、+ 0,8 0 + 1,1 0 + 1,4 Normal 2 t 3 0 + 0,7 0 + 1,0 0 + 1,3 0 + 1,6 t 0,6 0 + 0,2 0 + 0,2 0 + 0,3 0 + 0,5 0,6 t 1,0 0 + 0,2 0 + 0,3 0 + 0,4 0 + 0,6 1,0 t 2,0 0 + 0,3 0 + 0,4 0 + 0,5 0 + 0,7 Special (S) 2,0 t 3,0 0 + 0,4 0 + 0,5 0 + 0,6 0 + 0,8 EN 10131:2006 (E) 9 8 Tolerances on length Length is meas
24、ured along one of the long sides of the sheet or cut length. The tolerances on length shall be as given in Table 7 and apply to all products covered by this standard. Table 7 Tolerances on length Dimensions in millimetres Nominal length Normal tolerances Special tolerances (S) Under Over Under Over
25、2000 0 6 0 3 2000 0 0,3 % of the length 0 0,15 % of the length 9 Tolerances on flatness 9.1 General The tolerance on flatness is the maximum permitted distance between the sheet and the horizontal surface on which it is placed. The measurement of waviness is only made on sheet edges. The flatness to
26、lerances apply only to sheet. If the sheet is ordered non-skin passed only the normal tolerances are applicable. Flatness tolerances closer than special tolerances may be agreed at the time of the order. 9.2 Steel grades with specified minimum yield strength Re 260 MPa Flatness tolerances for these
27、steel grades shall be as given in Table 8. When these steel grades are ordered with the special tolerances given in Table 8, in case of dispute it is necessary to verify that the wave height of any edge wave of length over 200 mm is always less than: 1 % of its length for a nominal sheet width 1500
28、mm; 1,5 % of its length for a nominal sheet width = 1500 mm. If the length of an edge wave is less than 200 mm it is necessary to verify that its maximum height does not exceed 2 mm. EN 10131:2006 (E) 10 Table 8 Flatness tolerances for steel grades with a specified minimum yield strength Re 260 MPa
29、Dimensions in millimetres Tolerance class Nominal width Nominal thickness w t 0,7 0,7 t 1,2 t 1,2 w 600 7 6 5 600 w 1200 10 8 7 1200 w 1500 12 10 8 Normal w 1500 17 15 13 w 600 4 3 2 600 w 1200 5 4 3 1200 w 1500 6 5 4 w 1500 8 7 6 Special (FS) w 1500 Height of edge wave of length over 200 mm must be
30、 less than 1 % of its length. w 1500 Height of edge wave of length over 200 mm must be less than 1,5 % of its length. For edge waves of length less than 200 mm, the maximum height must not exceed 2 mm. 9.3 Steel grades with specified minimum yield strength 260 MPa Re 340 MPa Flatness tolerances for
31、these steel grades shall be as given in Table 9. Flatness tolerances for widths less than 600 mm shall to agreed at the time of the order. Table 9 Flatness tolerances for high yield strength steel sheet with specified minimum yield strength 260 Re 340 MPa Dimensions in millimetres Tolerance class No
32、minal width Nominal thickness w t 0,7 0,7 t 1,2 t 1,2 600 w 1 200 13 10 8 Normal 1 200 w 1 500 15 13 11 w 1 500 20 19 17 600 w 1 200 8 6 5 Special (FS) 1200 w 1 500 9 8 6 w 1 500 12 10 9 EN 10131:2006 (E) 11 9.4 Steel grades with specified minimum yield strength Re 340 MPa For these steel grades, th
33、e values for flatness tolerances shall be specified at the time of the order. 10 Tolerances on out of squareness The out-of-squareness (u) is the orthogonal projection of transverse edge over a longitudinal edge (see Figure 1). The out-of-squareness shall not exceed 1 % of the actual width of the sh
34、eet. 11 Tolerances on edge camber Edge camber (q) is the maximum distance between a longitudinal edge and a straight edge supported on the latter (see Figure 1). Edge camber shall be measured on the concave edge. The basis of measurement shall be a distance of 2 m taken at any point on the edge. In
35、the case of sheets and cut lengths with a length less than 2 m, the basis measurement shall be equal to their length. The edge camber shall not exceed 5 mm over a length of 2 m. For lengths less than 2 metres, the edge camber shall not exceed 0,25 % of the actual length. For slit wide strip of width
36、 less than 600 mm a special edge camber tolerance (CS) of 2 mm maximum on a 2 m length may be specified. This special edge camber tolerance is not applicable to slit wide strip of high yield strength steels. 12 Superimposition of dimensions By agreement at the time of ordering, the tolerance on out-
37、of-squareness and edge camber may be replaced by a requirement that a perfect rectangle formed by the ordered width and length dimensions can be superimposed onto the sheets delivered. Figure 1 Out-of-squareness (u) and edge camber (q) EN 10131:2006 (E) 12 Bibliography 1 EN 10130, Cold rolled low ca
38、rbon steel flat products for cold forming Technical delivery conditions 2 EN 10152, Electrolytically zinc coated cold rolled steel flat products for cold forming Technical delivery conditions 3 EN 10209, Cold rolled low carbon steel flat products for vitreous enamelling Technical delivery conditions
39、 4 EN 10268, Cold rolled steel flat products with higher yield strength for cold forming Technical delivery conditions 5 EN 10271, Electrolytically zinc-nickel (ZN) coated steel flat products Technical delivery conditions 6 prEN 10338, Cold rolled flat products of multiphase steels for cold forming
40、Technical delivery conditions 7 prEN 10336, Continuously hot-dip coated and electrolytically coated strip and sheet of multiphase steels for cold forming Technical delivery conditions 8 EN 10106, Cold rolled non-oriented electrical steel sheet and strip delivered in the fully processed state 9 EN 10
41、341, Cold rolled electrical non-alloy and alloy steel sheet and strip delivered in the semi-processed state 10 EN 10202, Cold reduced tinmill products Electrolytic tinplate and electrolytic chromium/chromium oxide coated steel 11 EN 10205, Cold reduced blackplate in coil form for the production of t
42、inplate or electrolytic chromium/chromium oxide coated steel 12 EN 10139, Cold rolled uncoated mild steel narrow strip for cold forming Technical delivery conditions blank BS EN 10131:2006 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body
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