Streak of Steel (German: Der stählerne Strahl) is a 1935 sports film directed by Franz Wenzler and starring Karl Ludwig Diehl, Dorothea Wieck and Friedl Haerlin. It was shot at the Johannisthal Studios in Berlin and on location at the city's AVUS Race Track. The film's sets were designed by the art directors Gabriel Pellon and Carl Böhm.
Racing driver Michael Tetjus returns from America to Berlin having broken a world record. His relationship with his wife the film actress Katja is strained due to their respective focus on work. Michael is intrigued by a new turbine being designed by his friend the engineer Zöger ANZ his assistant Enja.