Boiler Stack Steel Material
It was 7/16" thick A285 Gr C carbon steel. It is eaten away by the flue gas from the boiler. We have two quotes to replace the stack with A516 Gr 70 and A36 carbon steel. ... You might want to look at Corten steel, as an option. This is a steel designed for outdoor use, a weathering grade of steel. I would not use A 36 for this application. The ...