Magnetic Resonance Imaging (MRI) is one of the most advanced medical imaging modalities in the world and, with over 25,000 MRI systems in service today, provides unrivalled imaging of soft tissues e.g. brain, muscle, heart, tumours etc. without subjecting patients to ionising radiation. At the heart of every system is a powerful magnet (up to 300,000 times more powerful than the earth’s magnetic field), which depends heavily on the stainless steel used in its construction.
Not only is the corrosion resistance of austenitic stainless steel useful in a medical environment but also its ductility at ultra-low temperatures (-269°C) and its non-magnetic characteristics make it an ideal structural material critical to the worldwide delivery of this life saving technology.
More than a third of all MRI scanners installed in hospitals around the world have a superconducting magnet designed and manufactured by Siemens Magnet Technology.