What is the Rockwell hardness to 2.90 brinell. I am making my first knife from a flat stock 5160 leaf spring steel. I have a friend who will heat treat to 2000 and temper to 900 to harden to leaf spring hardness. They measure at brinell, looking for Rockwell equivalent.
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Rockwell to brinell conversion
- Thread starter Bennyv81
- Start date
- Joined
- Dec 29, 2005
- Messages
- 1,367
Type your very thread title into google, and come up with this 1st...
http://www.engineersedge.com/hardness_conversion.htm
I didn't go any further.
http://www.engineersedge.com/hardness_conversion.htm
I didn't go any further.
- Joined
- Aug 13, 2009
- Messages
- 102
Yep, google will usually turn up a quick result. It knows a lot 
By the way, 2000 F for a hardening temp is way too hot for 5160. Critical temp for 5160 is about 1525 F. That sort of temp would deliever excessively huge grain growth and would be unadvisable in heat treating a knife.
By the way, 2000 F for a hardening temp is way too hot for 5160. Critical temp for 5160 is about 1525 F. That sort of temp would deliever excessively huge grain growth and would be unadvisable in heat treating a knife.