BS EN 2590:2017 pdf free download.Aerospace series – Steel – Sheets and plates, hot rolled – Dimensions.
BS EN 2590:2017 defines the dimensions and tolerances of sheets and plates, hot rolled, in steel, used in aerospace constructions.
3 Required characteristics
3.1 Materials
Steels EN2209,en2212,en2215,en2216,en2217,en2228,en2246,en2250,en2273,en2276,
N2280,e2467,en2538,en2540,en253,en2770,en2773,en2776.
3.5.3 Flatness
3.5.3.1 Method of measurement
The sheet or plate shall be placed on a flat surface, under its own mass.
The raised surface is given by the measurement of the max. distance between the sheet or plate and a reference line which coincides in two points with the sheet or plate, see Figure 3.
3.4.1 Thicknesses
In accordance with Table 3.
Measurements shall be taken at least 20 mm from the edge.

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