Fellow TechNetters:

   I only received one response to my initial inquiry.   To the hardness testers gurus out there, what can you share.

Soooooo please bear with me if I ask for assistance one more time.
Is there a correlation between the depth/diameter of the steel ball impression on the given material and the hardness of the material?
New area of test for me.

Victor,
_____________________________________________
From: Hernandez, Victor G
Sent: Wednesday, May 02, 2012 7:47 AM
To: TechNet E-Mail Forum
Cc: Hernandez, Victor G
Subject: Hardness testing guidelines


Fellow TechNetters,

   What are some guidelines with regards to hardness testing,
Tester:   Mitutoyo AR-20
Aluminum 384, ADC 12
Rockwell B, ball bearing, 1/16 inch dia. (0.0625 dia.)
Load:           100
Target:         53
Coupon thickness:       0.05425 inch
Coupon Size:            1.3 x 0.58 inch
Spacing between testing sites:
Coupon flatness:

Can the round indentation diameter and depression be used to confirm the instrument reading/value?

Victor,


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