Steelmark

The Steelmark is a logo representing steel and the steel industry owned by the American Iron and Steel Institute, and used by it to promote the product and its manufacturers.

The logo was incorporated as the emblem of the Pittsburgh Steelers and Huachipato Football Club, both teams being closely associated with steelworkers. At first, their respective symbols used the same design as the Steelmark, but they were later modified to include the team's full name.