Optimum BHN = PSI / (1422 x .90)

Mitty38

Seeker of knowlege
Mitty38 I like the dog.
Thanks,
Traded a High point 45 carbine. For him and a Rossi 410.
Both were Christmas gifts for my son. Had him for a couple years now. He defiantly lets me know if someone strange is around.
When my son is not around, and I am home, he is my shadow, must be within arms length of me at all times.
He is a pretty good boy.
 

popper

Well-Known Member
BHN is a mesurement of the stress-strain curve of the alloy, using a brinell measuring system. Apply force to the material and see how much it (displaces) moves and remove force to see how much 'spring-back' (malleability). The shape of the curve changes greatly depending on the content of the melt. Typically a 'S' type of curve. Top of the 's' is BHN and permanent displacement. Difference in psi vs force is a constant (area) so often referred as psi.