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Re: comparative hardnesses

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Posted by Gordon England (62.252.0.12) on 02:28:33 25/05/06

In Reply to: comparative hardnesses posted by Joe Diesendruck

Hi Joe
Rubi stone or ruby is a form of aluminium oxide and will be very much harder than steel hardened to 60 HRc. Ruby is too hard to be measured using the Rockwell C scale, so to compare: 60 HRc will be roughly equivalent to 700 HV (Vickers Hardness), ruby will be roughly 2000+ HV.
Hope that helps
Regards Gordon

Follow Ups:

Re: comparative hardnesses - Joe Diesendruck 00:21:27 26/05/06 (1)
- Re: comparative hardnesses - Gordon England 00:45:40 02/06/06 (0)

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