Rockwell 15N 2

[MATE45]

I am looking for more information with regards to Rockwell 15N. I know it is a superficial testing method, and that it uses a diamond tip. From the rockwell machine i have it suggests that a different indentor is needed. Does anybody have more information regarding this testing method. Thanks.

 

[CoryPad]

Rockwell 15N uses the spheroconical diamond indenter just like the HRA & HRC scales. The difference is that it uses a 29.42 N (3 kgf) minor force and a 147.1 N (15 kgf) major force.

This is a great reference for Rockwell hardness testing:

http://www.msel.nist.gov/practiceguides/SP960_5.pdf

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[MATE45]

Thanks for the link, good article and reference