USS Sea Wolf submarine hydrogen cracking

Brief reference. Hydrogen cracking still happening 70–80 years after Stout wrote the book on how to avoid it. "People still don't follow the welding procedures."

The steels generally don't have this BCC heat-affected zone equation, because iron-based alloys just don't have this. I have seen weld solidification cracking when you're trying to weld over a high-phosphorus paint. The problem they reproduce is hydrogen-induced surface cracking, and we're going to go over that as a base case, because I've seen this half a dozen times even though Stout wrote this book about how to avoid hydrogen-induced cracking. Seventy, eighty years later, we still see the Sea Wolf submarine that I talked about have hydrogen-induced cracking.