What is the unit of Rockwell hardness?

Related questions

1. What is a good blade hardness?
2. What metal is harder than tungsten?
3. How do you calculate hardness of a material?
4. What's harder than diamond?
5. What is unit of hardness?
6. What is the principle of Rockwell hardness test?
7. Is Damascus steel better than stainless?
8. Is Damascus steel strong?
9. What is the toughest steel?
10. What is HBW hardness?

Tags

1. #rockwell
2. #measurement
3. #table
4. #scales
5. #first
6. #materials
7. #indicating
8. #letter
9. #hardness
10. #symbol
11. #below
12. #example
13. #scale
14. #units
15. #number
16. #stanley
17. #described
18. #followed
19. #invented
20. #means
21. #possible