Below is an overview of the steel composition in our Takefu VG-10 and Hitachi ATS314 steels. The VG-10 steel comes from Takefu private stocks but are made by Hitachi on license. ATS314 Hitachi steel is the highest quality Japanese steel available and nobody is allowed to make a steel and call it ATS314 other than Hitachi.
| Steel | Carbon | Silicon | Manganese | Phosphor | Sulfur | Chromium | Tungsten | Molybdenum | Vanadium | Cobalt | HRC |
| VG-10 | 0.95~1.05 | 14.5~15.5 | 0.8~1.2 | 0.25~0.35 | 1.3~1.8 | 59-60 | |||||
| ATS314 Hitachi | (SECRET) | ------- | ------------- | ----------- | ------ | ----------- | ---------- | --------------- | ----------- | -------- | 59-60 |