More than 500 models for cold and hot forming

The flow curves were kindly provided by the Institute for Metal Forming of the TU Bergakademie Freiberg. They are the result of decades of experience in this field and are also internationally regarded as a solid basis for the design of forming processes.

Abb. 1: Flow Curves

Flow curves

All flow curves are parametric models (Hensel-Spittel, IMF TU Freiberg) with the parameters temperature, degree of deformation and deformation rate. Within the scope of the validity of the models, any flow curves for steel can be generated and compared with each other. In addition, relationships with other steel data, e.g. chemical composition and thermophysical properties, with the extensive analytical capabilities of the StahlDat SX Professional. Flow curves characterize the forming behavior of steels. They serve as a basis for the calculation of forces and the workload during forming. For example, e.g. the result of a finite element simulation largely depends on the quality of the flow curves used. The flow curve is the representation of the yield stress as a function of the logarithmic main shape change at constant other parameters such as temperature and strain rate.

Flow curves are available for more than 150 steels for different microstructure states. The flow curve database is directly linked to the materials of the Register of European Steels.