- 0,7% of Carbon: It improves hardness and wear/corrosion resistance, but a high amount of it decreases strength.
- 7,8% of Chromium: For tensile strength and Edge retention, and enhances corrosion resistance and wear resistance.
- 2,5% of Molybdenum: Increase Machinability and strength.
- 0,5% of Manganese: Increases hardness and brittleness.
- 0,9% Silicon: Improves Strength.
- 0,5% of Vanadium: Improves wear resistance and hardenability.
As you can see, the Sleipner steel has a mixture of Carbon, Chromium, Molybdenum, and Manganese, which makes it tool steel, not stainless steel (to be considered as stainless steel must have a minimum of 13% Chromium).