Aogami Blue Super Steel is another high end knife steel production by Hitachi.
Aogami is a carbon driven steel so whilst it will be very hard it will also be more likely to be corrosive - so for these knives you need to take care of them.
You will notice a much lower contribution of Chromium when compared with classics like VG10 or AUS10.
The steel composition is as follows:
Elements
Aogami Steel
C
1.40-1.50
Si
0.10-0.20
Mn
0.20-0.30
Ni
-
Cr
0.30-0.50
Mo
-
W
2.00-2.50
V
0.30-0.50
Co
-
others