Abstract: A method for determining the wear properties of coated flat products such as galvannealed flat steel products is provided herein. In order to be able to achieve better comparability of the determined wear properties of different flat products at least one bending parameter for the bending of the particular flat product by a bending device is selected in accordance with defined criteria on the basis of information regarding the thickness and/or the strength of the particular flat products to be bent. The flat products are bent in the bending device in accordance with the selected bending parameters, wear thus being produced. The wear properties are analyzed in a predetermined manner on the basis of the wear of the particular flat products.

Abstract: A flat steel product having a steel substrate and a protective coating having zinc as its main constituent that has been applied to the steel substrate by hot dip coating and produced by a subsequent galvannealing treatment, wherein the protective coating has pores on its free surface that extend into the protective coating. In the flat steel product, the proportions of right-skewed measurement traces determined in a topographic study are predominant over the proportion of non-right-skewed measurement traces both in the measurement direction and transverse to the measurement direction. Right-skewed measurement traces are determined by comparing the mean ascertained for each measurement trace with the median ascertained therefor. Those measurement traces where the mean is greater than the median are classified as being right-skewed.

Abstract: A method for determining the abrasion properties of a coated flat product is described. A corresponding method is proposed in which an adhesive strip is stuck to the coating of the flat product, the flat product is bent in the region provided with the adhesive strip or to be provided with the adhesive strip, the adhesive strip after bending is peeled off together with abrasion material of the coating adhering to the adhesive strip, the grey tones of the adhesive strip are determined stripe by stripe crossways to the width of the abrasion, and on the basis of the grey tones determined stripe by stripe the grey width is determined as the width of the abrasion and/or the representative grey tone is determined as the representative grey tone of the grey tones determined stripe by stripe.

Abstract: A method for determining the wear properties of coated flat products such as galvannealed flat steel products is provided herein. In order to be able to achieve better comparability of the determined wear properties of different flat products at least one bending parameter for the bending of the particular flat product by a bending device is selected in accordance with defined criteria on the basis of information regarding the thickness and/or the strength of the particular flat products to be bent. The flat products are bent in the bending device in accordance with the selected bending parameters, wear thus being produced. The wear properties are analysed in a predetermined manner on the basis of the wear of the particular flat products.

Abstract: A method for determining the abrasion properties of a coated flat product is described. A corresponding method is proposed in which an adhesive strip is stuck to the coating of the flat product, the flat product is bent in the region provided with the adhesive strip or to be provided with the adhesive strip, the adhesive strip after bending is peeled off together with abrasion material of the coating adhering to the adhesive strip, the grey tones of the adhesive strip are determined stripe by stripe crossways to the width of the abrasion, and on the basis of the grey tones determined stripe by stripe the grey width is determined as the width of the abrasion and/or the representative grey tone is determined as the representative grey tone of the grey tones determined stripe by stripe.