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Posted by Tom Stanton on April 29, 2002 at 05:25:12:
In Reply to: boiler tubes posted by james jackson on April 27, 2002 at 12:20:13:
Since the Navy steamships were mostly built 40 plus years ago, I assume the generating, screen and waterwalls were all carbon steel. The superheater tubes were probably carbon steel for the first few passes then the later passes would use some higher alloy material like chrome-molloy.