Stainless steel AISI 431, also known as 1.4057 or X17CrNi16-2, is a martensitic stainless steel grade with high strength and excellent corrosion resistance. This alloy is characterized by a combination of hardness, toughness, and wear resistance, making it suitable for a variety of applications.

AISI 431 SS is commonly used in industries such as automotive, aerospace, chemical, and medical technology. Due to its strength and resistance to chemical influences, it is well-suited for components exposed to high loads and aggressive environments.

The alloy can be further optimized through various heat treatments to achieve the desired mechanical properties. Strength, hardness, and corrosion resistance can be selectively influenced.

With machining techniques such as turning, milling, and welding, the material 1.4057 is easily processable. Its versatility and performance make it a valued material in numerous demanding applications.