300mm or 13“ Inch Blade wide range high carbon content very high hardness – Up to 56 Rockwell C Retention of blade sharpness, hot temperature up to 100°C -200°C. Moderate corrosion resistance better than standard 12% martensitic grades 5CRMOV15 Standard Grade Chef Knife Steel Contain: 0,5% of Carbon: It improves hardness and wear/corrosion resistance, but a high amount of it decreases strength. 15% of Chromium: For tensile strength and Edge retention, and enhances corrosion resistance and wear resistance. 0,6% of Molybdenum: Increase Machinability and strength. 0,40% of Manganese: Increases hardness and brittleness. 0,10% of Vanadium: Improves wear resistance and hardenability. It's Much better than 304, 316 stainless steel knife. Purchase something it worth to the product contain.