On 4/12/2013 9:16 PM, Paul K. Dickman wrote:
"Tom Gardner" Mars@Tacks wrote in message
...

Thanks anyway. I need to make an arm that holds a carbide square like an
arm on a pair of scissors. The current one is cold-roll and is flexing
too muck under pressure. Ya' think 4140 would be a better choice?

Probably not.
The modulus of elasticity will be the some. The yield will go up, so it will
bend farther before it takes a set, but it will flex just as far with the
same load.
Redesign the part to have more meat in it.

Paul K. Dickman



I was afraid of that but I can add 20%-25% where it counts. What about
hard D-2?