Hardness Conversion Table

RELATIONSHIP BETWEEN BRINELL, ROCKWELL, AND TENSILE STRENGTH FOR TOOL AND ALLOY STEELS
3000 KG. LOAD 10 MM BALLC SCALEB SCALE1000 POUNDS PER SQ. IN.3000 KG. LOAD 10 MM BALLC SCALEB SCALE1000 POUNDS PER SQ. IN.
IMP. DIA. M M.PRARD NESS NO.150 KG. SCALE100 KG. BALLIMP. DIA. MM.PRARD- NESS NO.150 KG. SCALE100 KG. BALL
2.20780683824.152121795104
2.25745663654.202071695101
2.30712653494.25201159499
2.35682633344.30197149397
2.40653623204.35192139295
2.45627603074.40187119193
2.50601582944.45183109091
2.55578572834.5017998989
2.60555552724.5517478887
2.65534532614.6017068785
2.70514522524.6516758684
2.75495502424.7016338582
2.80477492344.7515928480
2.85461482264.8015618379
2.90444462174.8515208277
2.95429452104.901498175.
3.00415442034.951468074
3.05401421965.001437972
3.10388411121905.051407871
3.15375401111845.101377770
3.20363391101785.151347569
3.25352381091725.201317467
3.30341371081675.251287366
3.35331361081625.301267265
3.40321351071575.351237163
3.45311341061525.401217062
3.50302331061485.451186861
3.55293321051445.501166760
3.60285301041405.551146658
3.65277291041365.601116557
3.70269281031325.651096356
3.75262271021285.701076255
3.80255261011255.751056054
3.85248251001225.801035853
3.90241231001185.851015852
3.9523522991155.90995651
4.0022921981125.95975550
4.0522320971096.00955449
4.102171896106

 

Data is typical and should not be construed as actual values for any category.
Applications and technical information require engineers and tool designers to exercise independent judgement.