Greetings! First time poster here. I'd appreciate whatever help anyone can provide. I have some pieces of F22 that were quenched and tempered. My customer needs to know how deep the quench properties extend, as he intends to machine off some of the O.D. Critical Diameter analysis is not appropriate because some of the elemental percentages are outside the ranges evaluated by Grossman. I need a method, spec, link, or something to determine how much drop in hardness to expect as material is removed. Thank you!