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Views: 2 Author: Wang Publish Time: 2024-06-25 Origin: Site
Stainless steel 310S is an austenitic heat resistant alloy with excellent resistance to oxidation under mildly cyclic conditions through 2000°F. Its high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation and the retention of a larger fraction of room temperature strength than the common austenitic alloys like Type 304. Stainless 310S is often used at cryogenic temperatures, with excellent toughness to -450°F, and low magnetic permeability.
310S stainless steel, part of the austenitic family of stainless steels, stands out for its high chromium-nickel content, offering exceptional oxidation and corrosion resistance, as well as superior strength in high-temperature settings. This variant, maintains structural integrity up to 1150 °C, making it ideal for high-temperature applications like electric heating tubes. Renowned for its robust performance in severe environmental conditions, it combines endurance with remarkable resistance to acid and alkali exposures, securing its place in industries requiring dependable high-temperature operation.
Stainless steel 310s contain 25% chromium and 20% nickel, making them highly resistant to oxidation and corrosion. Grade 310S is a lower carbon version, less prone to embrittlement and sensitisation in service. The high chromium and medium nickel content make these steels capable for applications in reducing sulphur atmospheres containing H2S. They are widely used in moderately carburising atmospheres, as encountered in petrochemical environments. For more severe carburising atmospheres other heat resisting alloys should be selected. In common with other austenitic stainless steels, Stainless steel 310S cannot be hardened by heat treatment. They can be hardened by cold work, but this is rarely practiced.
310S stainless steel provides superior corrosion resistance properties against carburization, oxidation and other conditions. It is fabricated to offer excellent performance in the elevated temperature conditions on the industrial level that need high resistance to carburization and thermal cycling corrosion. It shows austenitic nature in the whole temperatures and doesn’t show embrittlement.The excellent strength and resistance to high temperature oxidation properties are purposeful in the commercial incinerators, kilns and food processing equipments.
310S stainless steel has good high temperature resistance, when the temperature exceeds 800, it begins to soften, the allowable stress begins to continue to reduce, and the maximum use temperature is 1200℃. Due to the high content of nickel (Ni) and chromium (Cr), it has good oxidation resistance, corrosion resistance, acid and alkali resistance, high temperature resistance steel pipe is dedicated to the manufacture of electric furnace tubes and other occasions, after increasing the content of carbon in Austenitic stainless steel, the strength is improved due to its solid solution strengthening effect. The chemical composition characteristics of Austenitic stainless steel are based on chromium and nickel to add molybdenum, tungsten, niobium and titanium, and because of its face-centered cubic structure, it has high strength and creep strength at high temperatures.
The type 310S consists of 24-26% Chromium, 19-22% Nickel, 2.00% Manganese, 1.50% Silicon, 0.045% Phosphorus, 0.030% Sulfur and 0.25% Carbon. The high chromium enables reduced sulfur atmospheres containing Hydrogen Sulphide. The combined effect of Chromium and Nickel enable high resistance to oxidation. Combined with its low carbon content, the metal is also effective at resisting embrittlement. The metal is commonly utilized in extreme conditions, such as furnace manufacturing and heat treating equipment.
Welding Grades 310S is welded with matching electrodes and filler metals. The alloys are readily welded by SMAW (manual), GMAW (MIG), GTAW (TIG) and SAW. Electrodes to AWS A5.4 E310-XX and A 5.22 E310T-X, and filler metal AWS A5.9 ER310 are used. Argon is shielding gas. Preheat and post heat are not required, but for corrosion service in liquids full post weld solution annealing treatment is essential. Pickling and passivation of the surface to remove high temperature oxides are essential to restore full aqueous corrosion resistance after welding. This treatment is not required for high temperature service, but welding slag should be thoroughly removed.
Grades 310S is forged in the temperature range 975 - 1175°C. Heavy work is carried out down to 1050°Cand a light finish is applied to the bottom of the range. After forging annealing is recommended to relieve all stresses from the forging process. 310S Stainless Steel can be readily cold formed by standard methods and equipment.
310S stainless steel, renowned for its superior resistance to high temperatures and oxidation, is extensively utilized across various industries. Its versatility is showcased in a range of applications including:
Components like conveyor belts, drums, burners, refractory supports, and pipe supports;
Utilization in the chemical processing sector;
Applications in the food processing sector;
Utilized in manufacturing stamping dies, fixtures, cutting tools, measuring devices, paper slicers, and support equipment;
Employed across various sectors including oil & gas, electronics, pharmaceuticals, textiles, machinery, construction, nuclear energy, aerospace, and defense;
Others.
Stainless steel 310S is an excellent choice for industries that require high corrosion resistance, heat resisistance, and durability. Its composition and properties make it ideal for high-temperature applications where other alloys are not suitable. Its advantages, including low maintenance, exceptional mechanical properties, and fantastic resistance to oxidation and corrosion, make it a preferred choice among engineers and manufacturers. If you are looking for a reliable and high-performance alloy for your next project, consider stainless steel 310S.
