Hardness conversion program
Hardness conversion program
(OP)
Does anyone know of a downloadable hardness conversion program (as opposed to conversion table) where one can enter a Knoop or Brinell and get the RC or RB calculated conversion? We shouldn't have to squint at a table then mentally interpolate in this day & age.
RAYBAND
Rock Island Arsenal
AMSTA-RIA-SEM





RE: Hardness conversion program
Uconeer
www.katmarsoftware.com
RE: Hardness conversion program
You shouldn't be converting hardnesses at all. They don't convert unless you have done the tests with the same materials. And even then you had better not extrapolate.
= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: Hardness conversion program
I agree that you have to be careful when using hardness conversions, especially when converting between micro, superficial, HRC, and Brinell. You have to take into account the microstructure you're testing especially if it's not homogeneous.
In the heat treat shop conversion is a valuable diagnostic tool in troubleshooting hardness problems on parts. So I can't discount conversions completely.
RE: Hardness conversion program
Sorry EDStainless, we all know the gospel, but hardness conversions are a fact of life.
RAYBAND
Rock Island Arsenal
AMSTA-RIA-SEM
RE: Hardness conversion program
You can find a great deal of information, including conversion equations and uncertainty analysis, in ASTM E 140 and ISO 18265.
RE: Hardness conversion program
RAYBAND
Rock Island Arsenal
AMSTA-RIA-SEM