The steel 42CrMo4QT / 1.7225 is an all-purpose material, especially for use in mechanical engineering. Its high strength combined with high toughness makes it possible to use it in heavy-duty machine parts, e.g. axles, transmission shafts, gear wheels, etc.
This steel is also used in mechanical engineering, in particular in tempered condition, which is additionally surface-hardened. It is a steel that is difficult to weld, so follow the instructions of the material manufacturer when using it.