Chernihiv sheet, circle tool steel U8A, HVG, 9XC, 5HNM, R6M5, spring-loaded 65G

Spring steels are a group of metals used for the manufacture of power elastic elements. Includes alloys grades 50XFA, 60S2A, 70S2XA and others. Spring-spring alloys have increased relaxation resistance and high elastic limit. Because of this, they are considered the ideal solution for the manufacture of elements for which structural changes are not allowed (for example, springs and leaf springs). The main component that allows obtaining the required physicochemical properties of the alloy is carbon - it should be at least 0.5% and not more than 0.8%. Alloying components such as nickel (Ni ≤ 1.7%), silicon (Si ≤ 2.5%), tungsten (Wo ≤ 1.3%) and manganese (Mn ≤ 1.3%) added to the composition help increase resistance to plastic and elastic deformations, resistance to the appearance of brittleness even with a significant cycle of application and removal of loads. In addition, spring steels have high anti-corrosion properties due to the addition of molybdenum (Mo ≤ 0.5%) and chromium (Cr ≤ 1%). These components increase the wear resistance of steel, the life of parts and reduce the risk of cracking. In the marking of steels, alloying elements are indicated by the letters: Cr (chromium) - X, Mn (manganese) - G, Si (silicon) - C, Mo (molybdenum) - M, Ni (nickel) - H, W (tungsten) - B, N (nitrogen) - A, B (boron) - P, V (vanadium) - F. The digital identifier in the name of the alloy indicates the amount of carbon in the metal (in hundredths of a percent). For example, marking 65S2VA means that the steel is high-quality (letter A at the end), contains 0.65% carbon (number 65), 2% silicon (indicated - C2), about 1% tungsten (letter B). Steel grade U10A is high-quality, carbon, with a C content of 0.95% to 1.09%. However, not only the composition of the alloy plays a role in creating the desired structural and operational properties of the springs. Thanks to patenting and stretching at low temperatures, as well as the use of calcination according to the through technology, an equivalent physical and chemical structure of the material is ensured in its various places. This is especially important, for example, for large-diameter wire in order to avoid destruction of the product made from it. The use of spring steels
Alloyed carbon materials are widely used in various industries. They are used in automobile and carriage building, in the production of furniture, household appliances, door springs and many other products. One of the main advantages of spring steels is their high resistance to material fatigue - even with prolonged continuous use, products made from such alloys will retain their original properties. Such qualities are very important in the production of various critical parts, such as springs for complex technological equipment, bearing housings, various gears and flanges, brake bands and much more. But for each specific case, its own brand of spring steel is required. Spring steels are used wherever it is necessary to give the product elasticity, ductility and strength at the same time. Products made from this type of steel are subject to tension and compression. Thus, spring steel is used for the production of springs for automobiles and heavy equipment, the manufacture of springs for tractor, locomotive equipment, elastic elements of machine tools, blocking and braking devices, bearing cages.
Structural spring-spring steel Structural spring steel is a specialized steel that is used to make springs and other spring components. It must have certain mechanical properties, such as high strength, durability, reliability, etc.
The composition and mechanical properties of steel for a structural leaf spring depend on the application and requirements for reliability and durability of the particular component. But it most often has a high content of carbon and manganese, and has reliability in cold and hot processing. Depending on the presence of additional components, it stands out: Alloy steel. It is used in the production of springs, springs, buffers and other parts operating under dynamic and alternating loads.
    Carbon steel. It is used for the manufacture of springs with a small cross section, which are operated under conditions of low stress.
As the basis of alloy steel, carbon steel is used, which contains 65-85% carbon (C). The composition is alloyed with 4 main chemical elements, all or separately. Each additive gives the alloy certain characteristics. Chrome (Cr). Gives the alloy anti-corrosion properties.
    Silicon (Si). Gives strength to metal.
    Manganese (Mn). Eliminates excessive strength of the material.
    Tungsten (W). Increases the plasticity of the material without loss of strength.