For these steels, a tensile test at room temperature shall be carried out in accordance with EN 10002-1, generally using a proportional test piece of gauge length Lo = 5.65√So (So = initial cross-sectional area of the test piece). Test pieces with a constant gauge length may be used, in which case the elongation value shall be converted in accordance with EN ISO 2566-1.
The minimum impact energy values specified apply, even if they are not to be verified in the case of product thicknesses < 6 mm. Where minimum impact energy values are specified for several temperatures, verification of the impact energy, unless otherwise agreed, shall be carried out at the temperature for which the value of 27 J is specified. Where the minimum impact energy value specified at the lowest temperature is higher than 27 J, this higher value shall be verified.