SPG STRIX
Meet SPG STRIX, the steel that is changing the game. Developed by Takefu Special Steel, STRIX (short for STrong matRIX) is quickly making a name for itself as one of the most advanced steels currently available.
Due to its hardened structure, STRIX offers the "high-carbon steel feel" while still retaining the benefits of stainless steel: high hardness, easy to sharpen even on stones of higher grit, and completely stainless, making it easy to maintain. In short, every chef’s dream.
SPG STRIX is a premium powder metallurgy (PM) steel developed by Takefu Special Steel, designed to deliver exceptional hardness, edge retention, and ease of sharpening. With a hardness of approximately 65 HRC, STRIX belongs to the elite category of stainless cutlery steels that combine high performance with daily usability.
As a PM steel, STRIX benefits from a uniform microstructure, where carbon and alloy elements are distributed evenly at the microscopic level. This fine structure allows the blade to achieve extreme sharpness and improves wear resistance compared to conventionally melted steels like VG-10 or AUS-10.
What sets STRIX apart from other powder steels—such as SG2—is Takefu’s unique approach to hardness. While SG2 achieves its performance through a high concentration of alloying elements like molybdenum and vanadium (which improve wear resistance but make sharpening more difficult), STRIX relies instead on a stronger base iron matrix. Takefu engineered the base iron itself to be harder, which gives STRIX its impressive hardness without relying heavily on abrasive alloying elements. As a result, STRIX blades are not only extremely hard and sharp, but also surprisingly easy to sharpen, offering a rare balance of durability and maintainability.
In stainless steels, base iron typically accounts for 70–80% of the composition. By optimizing this majority component, Takefu created a steel that maintains the corrosion resistance expected of stainless blades (thanks to around 14–16% chromium content), while enhancing core performance in terms of both cutting feel and long-term sharpening ease.