Its high critical magnetic field and supercurrent density were discovered in 1962 at Atomics International by T. G. Berlincourt and R. R. Hake.
Co-drawn as fine filaments embedded in a copper or aluminum matrix, ductile NbTi has a critical temperature near 10 K and an upper critical field of about 15 T, powering clinical MRI scanners that account for ~80% of commercial superconductivity.
The Large Hadron Collider at CERN uses 1,200 tonnes of NbTi-copper Rutherford cable cooled to 1.9 K in superfluid helium to generate 8.3 T dipole fields, and NbTi magnets also levitate Japan's 603 km/h SCMaglev train.