2014 Al heat treat question

[bucknast]

Hi everyone, I hope I'm in the right place for this. I'm new to this board, so bear with me.

I'm having some performance testing issues with some parts I work with, and the failures seem to be related to the parts' heat treatment. I have a quick questions, and any assistance would be much appreciated.

I want to better control the incoming raw material condition. The only related in process test I have readily available for these parts is a hardness test, and we certify our raw material with ultimate tensile and yield strength, Is there a direct relationship between material hardness and ultimate tensile / yield strength?

Thanks for your help!

 

[cloa]

Without stating the materials involved, its impossible to give an answer. Which materials in what condition? Certainly some materials in limited ranges have relationships between hardness and yield strength.

 

[cloa]

So its 2014 Aluminium is it?

http://www.ehow.com/how_8000761_convert-hardness-strength-aluminum.html