Auswahl der Stahlsorte auf Basis der DIN EN 1993-1-10

Choice of the steel grade according to DIN EN 1993-1-10.

As part of the Eurocode 3-family, DIN EN 1993-1-10 is responsible for sufficient selection of steel grades to avoid brittle fracture and lamellar tearing. The regulations of DIN EN 1993-1-10 are almost identical to the well known rules of the national DASt guidelines 009 and 014, so that there are only minor changes for the user. The choice of the steel grade to avoid brittle fracture is based on a fracture mechanics approach, in which the fracture toughness of the material considers a correlation to the notched impact strength requirements specified in the product standards. DIN EN 1993-1-10 allows three methods of verification, where normally the simple proof of the choice of permissible plate thickness using a standardized table comes into play. The proof of adequate fracture toughness in the through-thickness direction to avoid lamellar tearing can be done basically in two ways: the traditional way to DASt guideline 014 on the definition of a required Z-grade prior to ordering of the material or the possibility of testing the already fabricated steel components whether lamellar tearing has occurred.