Which type of roller coaster typically utilizes steel construction?

Inverted coasters are a type of roller coaster that is primarily constructed from steel. Steel allows for more complex and smooth designs, enabling a variety of inversions and high-speed maneuvers that characterizes inverted coasters. Riders are seated below the track with their legs dangling, which enhances the feeling of weightlessness during the ride. The use of steel not only provides the strength needed to support the structure but also contributes to smoother transitions and the ability to create more elaborate and thrilling elements.

While other coaster types may use steel components for certain features, such as supports or track, they are not defined by steel construction. Wooden coasters are traditionally made of wood, while launch and kiddie coasters may employ both materials but do not focus solely on steel like inverted coasters.