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Martensitic stainless steel is a type of stainless steel alloy that has a martensite crystal structure. It can be hardened and tempered through aging and heat treatment. [1][2][3][4] The other main types of stainless steel are austenitic, ferritic, duplex, and precipitation hardened. [5]
Martensitic stainless steel is based on chromium but have higher carbon levels up as high as 1%. Martensitic stainless steel has moderate corrosion resistance, but are considered hard, strong, slightly brittle.
Martensitic stainless steel is known for its strength, durability, and corrosion resistance. At high temperatures it has an FCC structure of austenite that when quenched and tempered can form martensite with a BCC structure.
What, Where, Why: Know Your Martensitic Stainless Steel. Moderate levels of corrosion resistance, high hardenability and machinability, poor formability and can be welded with caution. Here's a closer look at the martensitic family of stainless steel.
Martensitic SS is a type of steel with a composition similar to regular stainless steel but with a lower amount of alloy and a higher amount of carbon. These differences give it unique properties such as high hardness, brittleness, moderate corrosion resistance, and high tensile strength.
Martensitic stainless steel, also known as martensite, martensite steel, and MSS, is a type of stainless steel with a body-centered tetragonal (BCT) crystal structure. It is primarily composed of 12-18% chromium and 0.1-1.2% carbon. Its key feature is the ability to harden via heat treatment.
What is Martensitic Steel? Martensitic stainless steel is a good choice for a variety of applications because of its durability, strength, and corrosion resistance. The composition and properties of martensitic steel give it advantages over other types of steel in various industrial functions.
Martensitic and martensitic–austenitic stainless steels are characterized by their high strength but limited corrosion resistance. An increased carbon content increases strength, but at the expense of lower toughness and considerable degradation of weldability.
Martensitic stainless steels are Fe-Cr-C alloys capable of the austenite-martensite transformation under all cooling conditions. Compositions for most of martensitic steel alloys are covered by a number of specifications, such as ASTM A 420 or API 13 Cr L80 and 420 M with additional small amounts of Ni and/or Mo.
Martensitic stainless steels have a moderate chromium content (usually 12-18%) and low nickel. They are heat-treatable and can achieve high hardness and strength. Martensitic stainless steels are used in applications where hardness and wear resistance are essential, such as cutlery, surgical instruments, and steam turbine blades.