A ferritic stainless steel alloy is UNS S44400. Because of its low carbon content and strong resistance to corrosion, it is a common material for products like kitchenware, appliances, and automobile parts. In order to better comprehend how 444 stainless steel can be employed in numerous industries, let's examine its chemical makeup as well as its mechanical and physical characteristics.
SS444 Chemical Composition
Iron, chromium, manganese, silicon, and nitrogen make up 444 ss. Nickel and chromium are the two most often used alloying elements. Chromium gives 444 stainless steel with good corrosion resistance qualities and the ability to be heat treated for greater strength. When used in high-temperature service, silicon aids prevent scaling while manganese boosts the alloy's strength. Without compromising the material's ductility or formability, nitrogen increases strength.
444 Stainless Steel Mechanical Properties
The yield strength of UNS S44400 is 165 MPa (24 ksi), while its ultimate tensile strength is 585 MPa (85 ksi). Depending on the application, it has a Rockwell C hardness value between 22 and 28 HRC. Because of this, it is perfect for uses where toughness is required, such cutlery and kitchen appliances.
444 Stainless Steel Physical Properties
The density of 444 ss is 7800 kg/m3 (488 lb/ft3). It melts at temperatures between 2460 and 2550 °F (1350 to 1400 °C). It is suitable for applications requiring high thermal efficiency, such as heat exchangers and exhaust systems, because to its thermal conductivity rating of 20 W/mK (14 Btu/hr•ft•°F) at ambient temperature. 20 x 106 in./in./°F is its coefficient of thermal expansion, which is 11 x 106 K1.
444 Stainless Steel Uses
Due to its low price and exceptional durability, UNS S44400 has a wide variety of unusual applications. This amazing steel is used in a variety of industries, including heavy-duty infrastructure and architecture. In order to assure long-term strength and damage resistance, 444 stainless steel is increasingly being used to construct several structures, including roads and bridges. Projects involving high-salt settings, such as seaports and coastal manufacturing facilities, also utilise it. Because of its durability and aesthetic appeal, Jiangsu Dongtai Stainless Steel Tourism and Culture Creative Park in China was built with it, demonstrating that inventiveness does not always have to cost more.
Comments