Hardness

HRB HRCRm N/mm2Fe NiCrCo MoW SiMnLi Ti Al C PSOthers Cu Zn Mg
HB
Stainless Steels
HRB8656058.9/65.314/15.517/18.523.7/4.320.0180.020.020.5
HRB9162058/6017/1817/18.50.25.0/5.60.5/0.80.0150.030.0130.35
9.0019.00
3.0012.002.00
217-241HB84067.75.51817.50.150.060.03
460-68010.0019.000.501.000.020.020.02
550-76010.0018.001.002.000.030.050.03
490-69012.0017.002.500.501.000.020.020.02
490-60012.0017.002.500.501.000.020.020.02Nitrogene 0.14
580-80013.0017.502.751.002.000.030.050.03
500-73012.0017.502.251.002.000.085.00 0.050.03
600-980
600-980
HB2179006311.0/15.0 18.0/20.03.0/4.00.752.000.030.040.03
9.0/12.017.0/19.0-120.04/0.105C/0.80 0.040.03
800-9500.5012.000.350.500.14Nb 0.18
930-10800.5511.100.600.350.700.17V 0.3 Nb 0.28
84-97HRB700860.2512.30.040.350.350.150.005 0.1 0.0250.005Nb 0.45
71HRB430
75HRB450870.6012.001.001.000.080.040.03
300-500HB1050-130012/140.601.001.250.150.060.15
640-8401.0017.000.501.001.250.120.060.15
45/56HRc1270-1650
-16.0/18.00.75/1.25110.120.040.03
568-818810.2317.0/19.00.550.450.0120.4 0.020.001
31-54HRC1000-1800810.516.0/18.00.75110.070.040.03
8216.51
HRB82520790.3180.340.350.0090.29 0.05 0.0230.002Nb 0.71
62024.5020.504.500.501.600.020.04Cu 1.5
62025.0014.501.250.200.200.042.10 0.020.00
90HRB610650.32940.350.50.020.030.01Nb 0.6
183HB600482420.56.30.40.40.020.2 N 0.22
183HB6004525.321.86.70.30.30.020.020.2 N 0.24
11754.3016.502.800.300.800.090.02
350-575HV1130-186082.4< 0.8131.20.61.60.220.030.18
440-640
440-640
1300-170010.8/11.3 11/120.8/1.21.5/1.8
300-350HB11002.3015.302.100.3015.100.03N 0.4
31HRC100073.83.5211.7
246HB8001.5220.550.752.50.030.040.020.4
Material Guide –Keyto Recommended Inserts Material Designation
P Unalloyed SteelsP Alloyed SteelsM Stainless SteelsM K N S H PH Stainless Aluminum & Alloys High Temp. Alloys Hard Materials Cast Irons