Stainless steel elbows differ from carbon steel elbows primarily in material; their chemical composition ensures the elbow surface remains rust-free and corrosion-resistant for an extended period.

In piping systems, elbows are pipe fittings that alter the direction of the pipeline. By angle, there are three commonly used types: 45°, 90°, and 180°. Additionally, according to engineering requirements, other non-standard angle elbows such as 60° are also included.