I'm alittle new at researching information for Rockwell hardness of steel. In particular, I'm trying to find what the HRB of T430 stainless is. Is that enough information needed for an answer or do I need more matl characteristics?
I'm assuming that you mean type 430 stainless steel, UNS S43000. That's a ferritic stainless, not strongly work hardening. Generally in the mill annealed condition it will be between HRB 85 to 90. Fully hydrogen annealed, you might get down to 75 to 80 HRB, and with some working (say, to straighten the bar) you might get as high as 95 HRB.