Rockwell–Rockwell Superficial–Brinell–Vickers–Shore Hardness Conversion Chart

These Conversion Tables presents data in the Rockwell A, B, C, D, E and F hardness range on the relationship among Brinell hardness,Vickers hardness, Rockwell superficial, hardness, and Shore Scleroscope hardness of nonaustenitic steels including carbon, alloy, and tool steels in the as-forged, annealed, normalized, and quenched and tempered conditions provided that they are homogeneous

  • Rockwell b to Vickers conversion calculator

Rockwell

Rockwell Superficial


Brinell

Vickers

Shore Hardnell


A


B


C


D


E


F


15-N


30-N


45-N


30-T


3000 kg


500 kg


136

60kg Brale

100kg 1/16″ Ball

150kg Brale

100kg Brale

100kg 1/8″ Ball

60kg 1/16″ Ball

15kg Brale

30kg Brale

45kg Brale

30 kg 1/16″ Ball

10mm Ball Steel

10mm Ball Steel

Diamond Pyramid

Sciero-scope


86.5



70


78.5




94.0


86.0


77.6





1076


101


86.0



69


77.7




93.5


85.0


76.5





1044


99


85.6



68


76.9




93.2


84.4


75.4





940


97


85.0



67


76.1




92.9


83.6


74.2





900

95


84.5



66


75.4




92.5


82.8


73.2





865


92


83.9



65


74.5




92.2


81.9


72.0



739



832


91


83.4



64


73.8




91.8


81.1


71.0



722



800


88


82.8



63


73.0




91.4


80.1


69.9



705



772


87


82.3



62


72.2




91.1


79.3


68.8



688



746


85


81.8



61


71.5




90.7


78.4


67.7



670



720


83


81.2



60


70.7




90.2


77.5


66.6



654



697


81


80.7



59


69.9




89.8


76.6


65.5



634



674


80


80.1



58


69.2




89.3


75.7


64.3



615



653


78


79.6



57


68.5




88.9


74.8


63.2



595



633


76


79.0



56


67.7




88.3


73.9


62.0



577



613


75


78.5


120


55


66.9




87.9


73.0


60.9



560



595


74


78.0


120


54


66.1




87.4


72.0


59.8



543



577


72


77.4


119


53


65.4




86.9


71.2


58.6



525



560


71


76.8


119


52


64.6




86.4


70.2


57.4



500



544


69


76.3


118


51


63.8




85.9


69.4


56.1



487



528


68


75.9


117


50


63.1




85.5


68.5


55.0



475



513


67


75.2


117


49


62.1




85.0


67.6


53.8



464



498


66


74.7


116


48


61.4




84.5


66.7


52.5



451



484


64


74.1


116


47


60.8




83.9


65.8


51.4



442



471


63


73.6


115


46


60.0




83.5


64.8


50.3



432



458


62


73.1


115


45


59.2




83.0


64.0


49.0



421



446


60


72.5


114


44


58.5




82.5


63.1


47.8



409



434


58


72.0


113


43


57.7




82.0


62.2


46.7



400



423


57


71.5


113


42


56.9




81.5


61.3


45.5



390



412


56


70.9


112


41


56.2




80.9


60.4


44.3



381



402


55


70.4


112


40


55.4




80.4


59.5


43.1



371



392


54


69.9


111


39


54.6




79.9


58.6


41.9



362



382


52


69.4


110


38


53.8




79.4


57.7


40.8



353



372


51


68.9


110


37


53.1




78.8


56.8


39.6



344



363


50


68.4


109


36


52.3




78.3


55.9


38.4



336



354


49


67.9


109


35


51.5




77.7


55.0


37.2



327



345


48


67.4


108


34


50.8




77.2


54.2


36.1



319



336


47


66.8


108


33


50.0




76.6


53.3


34.9



311



327


46


66.3


107


32


49.2




76.1


52.1


33.7



301



318


44


65.8


106


31


48.4




75.6


51.3


32.5



294



310


43


65.3


105


30


47.7




75.0


50.4


31.3



286



302


42


64.7


104


29


47.0




74.5


49.5


30.1



279



294


41


64.3


104


28


46.1




73.9


48.6


28.9



271



286


41


63.8


103


27


45.2




73.3


47.7


27.8



264



279


40


63.3


103


26


44.6




72.8


46.8


26.7



258



272


39


62.8


102


25


43.8




72.2


45.9


25.5



253



266


38


62.4


101


24


43.1




71.6


45.0


24.3



247



260


37


62.0


100


23


42.1




71.0


44.0


23.1


82.0


240


201


254


36


61.5


99


22


41.6




70.5


43.2


22.0


81.5


234


195


248


35


61.0


98


21


40.9




69.9


42.3


20.7


81.0


228


189


243


35


60.5


97


20


40.1




69.4


41.5


19.6


80.5


222


184


238


34


59.0


96


18








80.0


216


179


230


33


58.0


95


16








79.0


210


175


222


32


57.5


94


15








78.5


205


171


213


31


57.0


93


13








78.0


200


167


208


30


56.5


92


12








77.5


195


163


204


29


56.0


91


10








77.0


190


160


196


28


55.5


90


9








76.0


185


157


192


27


55.0


89


8








75.5


180


154


188


26


54.0


88


7








75.0


176


151


184


26


53.5


87


6








74.5


172


148


180


26


53.0


86


5








74.0


169


145


176


25


52.5


85


4








73.5


165


142


173


25


52.0


84


3








73.0


162


140


170


25


51.0


83


2








72.0


159


137


166


24


50.5


82


1








71.5


156


135


163


24


50.0


81


0








71.0


153


133


160


24


49.5


80









70.0


150


130




49.0


79









69.5


147


128




48.5


78









69.0


144


126




48.0


77









68.0


141


124




47.0


76









67.5


139


122




46.5


75





99.5





67.0


137


120




46.0


74





99.0





66.0


135


118




45.5


73





98.5





65.5


132


116




45.0


72





98.0





65.0


130


114




44.5


71




100.0


97.5





64.2


127


112




44.0


70




99.5


97.0




63.5


125


110




43.5


69




99.0


96.0