Steel is one of the most widely used construction material. It is extensively applied in building, for automotive and household applications, in packaging, and many other fields. The world steel production reached some 1.55 billion tons in 2012. About half of the that amount is produced as flat steel, which is by definition (DIN EN 10079) a product that is rectangular shaped, where the width is much bigger than its thickness and – it can be added – is formed in a rolling processes. According to DIN 8583, rolling is a forming process under pressure, where the workpiece is formed between two or more rotating tools.