BS EN 10051:2010 pdf download.Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels – Tolerances on dimensions and shape.
4 Information to be supplied by the purchaser
4.1 General
The following information shall be supplied by the purchaser at the time of enquiry and order:
a) the quantity to be delivered;
b) designation of the product (wide strip, sheet/plate cut from wide strip, strip slit from wide strip);
C) number of this dimensional standard (EN 10051);
d) nominal thickness and width in mm:
e) the letters GK if strip and sheet/plate with trimmed edges is ordered (see 5.1);
f) nominal length in mm (for sheet and plate);
g) width tolerances for sheet/plate with thickness> 10 mm (see 6.3);
h) tolerances on flatness for sheet/plate of category D (see 6.4.2 and Table 10);
i) edge camber requirements for strip < 600 mm wide, which was slit from wide strip (see 7.5).
4.2 Options
A number of options are specified in Annex B. In the event that the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in accordance with the basic specification (see 4.1 and 5.1).
4.3 Designation
EXAMPLE 1 20 sheets according to this European Standard wdh nominal thickness of 2.0 mm, nominal width 1 200 mm, with trimmed edges (GK), nominal length 2 500 mm of steel 34Cr4 (1.7033) as specified in EN 10083-3:
20 sheets EN 10051 — 2,0 x I 200GK x 2 500
steel EN 10083-3 — 34Cr4
EXAMPLE 2 5 1 of strip according to this European Standard with nominal thickness of 4,5 mm, nominal width 1 500 mm, with mill edges of steel S235JR (1.0038), as specified in EN 10025-2:
5 t strip EN 10051 — 4,5 x I 500
steel EN 10025-2 — S235JR
5 Form of supply
5.1 Sheet/plate and strip shall be supplied with mill edges or with trimmed edges (GK), as agreed at the time of enquiry and order (see Annex B, option a)). In the absence of information on the form of supply, sheetlplate and strip shall be supplied with mill edges.
5.2 The possibility of delivering coils with welding seams can be agreed at the time of enquiry and order. The indication of the location of the weld can be agreed at the same time (see Annex B, option b)).
5.3 Where no specific choice is made by the purchaser concerning points g), h), and i) of 4.1 is given by the purchaser, the supplier shall refer back to the purchaser.
6 Tolerances for sheet/plate
6.1 Thickness
6.1.1 The tolerances on thickness for continuously hot-rolled low carbon steel sheet/plate for cold forming according to EN 10111 are given in Table 2.
6.1.2 The tolerances on thickness for steels, not covered by 6.1.1, are given in Tables 3 to 6. These tolerances are indicated as categories A, B, C, D. The dimensional tolerances of steel grades which do not have a specified minimum yield strength are the ones of category D.
6.5 Edge camber
The edge camber shall not exceed 0,5 % of the actual length of the sheet/plate for a nominal length 1<5000mm.
For sheet/plate with a nominal length I  5 000 mm and widths w  600 mm. the edge camber shall not exceed 20 mm for any length of 5 000 mm in the case of sheet/plate with mill edges and 15 mm in the case of sheet with trimmed edges.
6.6 Out-of-squareness
The out-of-squareness ii measured in accordance with 8.7 shall not exceed 1,0 % of the actual width of the
sheet/plate.
6.7 Superimposement of dimensions
By agreement at the time of enquiry and order the upper tolerances on out-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 into the sheets delivered (see Annex B. option e)). In this case, the upper tolerances on width and length shall be agreed at the time of enquiry and order.
7 Tolerances for wide strip and strip split from wide strip
7.1 General
The specified values for tolerances shall not apply to the uncropped ends of the coil for a total length 1, which is calculated using the formula.BS EN 10051 pdf download.