Originally Posted by
Rich Enders
Carlos, Of course there is steel for boat anchors and steel for high performance applications. I cannot speak for the low end in China or anywhere else, but the steel for high speed shafts is produced primarily in Germany, and is delivered with a lot certification. The certification includes detail on the additive levels like nickel and chromium as well as physical properties such as hardness before and after heat treating. It is also possible to analyze steel after the fact to confirm what it is.
Of course it would be possible for some one to fake the certification, but that has not been my experience. We have worked for years with a number of suppliers there, and they have more to gain by being honest.
Rich