Hardness Chart
Steel |
Core Strength After Hardening & Tempering Temper. Temperature (N/mm2) |
Surface Hardness 90 Min 1076° F Melonite® |
Name |
Steel Number |
2 Hours |
6 Hours |
HV 1 |
HV 10 |
HV 30 |
Ck15 |
1.1141 |
600 |
550 |
350 |
300 |
200 |
C45W3 |
1.1730 |
750 - 850 |
700 - 800 |
450 |
350 |
250 |
Ck60 |
1.1221 |
750 - 950 |
700 - 800 |
450 |
350 |
250 |
20MnCr5 |
1.7147 |
800 - 950 |
800 - 900 |
600 |
450 |
400 |
53MnV8 |
1.5141 |
850 - 950 |
800 - 900 |
450 |
400 |
350 |
90MnV8 |
1.2842 |
1000 - 1200 |
900 - 1100 |
550 |
450 |
400 |
42CrMo4 |
1.7225 |
900 - 1200 |
900 - 1100 |
650 |
500 |
450 |
X19NiCrMo4 |
1.2764 |
900 - 1100 |
900 - 1000 |
600 |
500 |
450 |
55NiCrMov6 |
1.2713 |
1200 - 1400 |
1150 - 1300 |
650 |
550 |
500 |
56NiCrMoV7 |
1.2714 |
1300 - 1500 |
1250 - 1400 |
650 |
550 |
500 |
50NiCr13 |
1.2721 |
1200 - 1350 |
1100 - 1200 |
600 |
500 |
450 |
X20Cr13 |
1.2082 |
1000 - 1200 |
1000 - 1200 |
> 900 |
600 |
450 |
X35CrMo17 |
1.4122 |
1000 - 1200 |
1000 - 1200 |
> 900 |
700 |
550 |
X210Cr12 |
1.2080 |
1500 - 1700 |
1400 - 1600 |
> 800 |
600 |
450 |
X210CrW12 |
1.2436 |
1500 - 1800 |
1400 - 1650 |
> 800 |
600 |
500 |
X165CrMoV12 |
1.2601 |
1400 - 1900 |
1400 - 1700 |
> 800 |
650 |
500 |
45CrMoW58 |
1.2603 |
1500 - 1800 |
1400 - 1700 |
800 |
700 |
600 |
X32CrMoV33 |
1.2365 |
1700 - 1800 |
1600 - 1750 |
> 900 |
850 |
700 |
X38CrMoV51 |
1.2343 |
1700 - 1900 |
1500 - 1700 |
> 900 |
850 |
700 |
X37CrMoW51 |
1.2606 |
1700 - 1900 |
1600 - 1800 |
> 900 |
800 |
700 |
X30WCrV53 |
1.2567 |
1700 - 1900 |
1600 - 1800 |
> 900 |
850 |
750 |
X30WCrV93 |
1.2581 |
1500 - 1800 |
1500 - 1700 |
> 900 |
850 |
800 |