Boiler Stack Steel Material
The stack is a self supporting stack and has a 3.5ft inner diameter at the last 50ft. This section was just replaced 12 years ago. 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. Is there a particular steel that would be ...