Quote Originally Posted by Todd.K View Post
Yet many are sold as some new wonder improvement vs C158. That doesn’t make me trust the company with the other critical processes.

To the OP on Nitride. I’m very much against nitride on any critically heat treated part. The nitride is hot enough to alter the hardness.
That would depend on if the nitriding is done as an afterthought, or does as a integrated part of the overall heat treating process.