12Ni14
Introduction
12Ni14 is a quality carbon steel that belongs to the 12NiCrMoV stainless steel family. This material is widely used because of its strength and durability, particularly in areas where high temperatures and corrosion, or abrasion are found. 12Ni14 is widely used in power plants, boilers, tanks and pipelines, as a base material for pressure vessels, steam boilers, and dryers, and it is commonly associated with flame and heat-resistant steel, as well as with sour-gas resisting steel grades.
Main properties
12Ni14 can be heat treated and cold treated to offer higher tensile, yield and impact strength, with temperatures reaching up to 980°C (1798°F). Its mechanical properties can be improved further through a water quenching and tempering process. 12Ni14 is also capable of resisting up to 11.5% of chromium and up to 3.5% of nickel, in order to increase its toughness, ductility and weldability.
It features good creep strength and relaxation resistance at temperatures of up to 575°C (1067°F), and a maximum operating temperature of 650°C (1202°F). The mechanical properties of 12Ni14 generally depend on the relevant heat treatment such as annealing, tempering and quenching.
Applications
12Ni14 is widely used in sectors like machinery and power station engineering, as well as in pipeline construction and shipbuilding. This steel is often found in gas turbines, automotive and shipping industries, because of its increasing resistance to oxidative corrosion and pressure. The product offers a great many other applications, such as pressure vessels, dryers, steam boilers, tanks, pumps, pipes and heat exchangers, as well as offshore platforms, aerospace and power-generation equipment.
12Ni14 is an optimal material for building thick plates and shaped steel parts, such as forgings and welded parts, due to its notable combination of strength and creep-resistance at different temperatures. With an addition of chromium, 12Ni14 acquires higher corrosion and temperature resistance up to 510°C (950°F), making it ideal for liquid vehicles, oil- and gas-field transport lines, and petrochemical production. The product should also prove effective for low-temperature containers that are operated at temperatures of less than –20°C (–4°F).
Advantages
12Ni14 offers a considerable combination of toughness and malleability, which allows usability in almost any kind of application without sacrificing quality. Its level of creep-resistance, oxidation-resistance and corrosion-resistance make it a valuable material for any kind of industry, allowing shapes and parts to withstand changing temperatures as well as holding up under any kind of pressure.
12Ni14 is also renowned for its overall durability, strength and weldability. The product is most commonly found in the form of round bars and plates, and it offers clients a large number of finished parts in a variety of large-sized products.
Conclusion
12Ni14 is an excellent quality carbon steel, part of the 12NiCrMoV stainless steel family, offering a good combination of high strength, malleability and creep-resistance. It is widely used for pressure vessels and tanks, offshore platforms, automotives, petrochemical production, as well as steam boilers, heat exchangers and pipes, among others. Its added chromium increases its corrosion-resistance and temperature-resistance up to 510°C (950°F). 12Ni14 is a durable and weldable steel, and its mechanical properties depend upon the relevant heat treatment such as annealing, tempering and quenching.
