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What grade of iron powder should be used for processing special steel? Are there any other elements on the request? How much are they?
- The main special steel carbon structural steel, carbon tool steel, carbon spring steel, alloy spring steel, alloy structural steel, bearing steel, alloy tool steel, alloy tool steel, high-speed tool steel, stainless steel, heat-resistant steel and high-temperature alloy, precision alloy, gold and other electric heating.s
Classification of special steel products
- Carbon structural steels are normally used directly under heat supply without heat treatment. The mass fraction of Q195, Q215, Q235 are usually of low carbon steel, good welding performance, good plasticity and toughness, a certain strength, often rolled into a sheet, steel, welded steel pipe, used for bridges, buildings and general manufacturing rivet, screw and nut parts etc.. Q255 and Q275 mass fraction of carbon steel is slightly high, high strength, good plasticity and toughness, can be welded steel, steel rolling, usually forming and plate structure and simple manufacturing machinery, connecting rod, gear coupling, pins and other parts. Plain carbon steel high carbon steel is basically contains alloy elements, the carbon content in the range of 0.65% ~ 1.35%, the production of low cost, easy to obtain raw materials, good machinability, after treatment can obtain high hardness and high wear resistance, so the steel is widely used to manufacture various. Cutting tool, mold, measuring tools.But the red hardness difference of this kind of steel, that is, when the working temperature is greater than 250 degrees, the hardness and wear resistance of steel will decline rapidly, and lose their ability to work. In addition, if carbon tools steel is made into larger parts, it is difficult to harden, and deformation and crack are easy to occur. This kind of steel must ensure both chemical composition and mechanical properties. The number is two digits by the average mass fraction of carbon steel in the 000 fraction (W C * 10000). For example, steel 45 shows the average mass fraction of carbon in steel is 0.45%; 08 steel indicates the average mass fraction of carbon in steel is 0.08%.s
What are the varieties of special steel
- The alloy steel and high alloy steel special steel production accounted for 70%, mainly for special steel carbon structural steel, carbon tool steel, carbon spring steel, alloy spring steel, alloy structural steel, bearing steel, alloy tool steel, alloy tool steel, high-speed tool steel, stainless steel, heat-resistant steel and high-temperature alloy, precision electrothermal alloy alloy, etc..s
How can I determine the cooling water flow of square billet mold for special steel?
- The mould water quantity is calculated according to experience. The cooling water quantity of mould is calculated according to the periphery length of mould:W=2 (L+D) - QkW in mould -- cooling water quantity of mould;L - slab width, mm;D - slab thickness, mm;Qk - water flow per unit length, L/ (min = mm), for billet mold, 2.0~3.0L/ (min. Mm).s
What is special steel? What is special steel?
- Special steel is the abbreviation of special steel, which is the most important factor in the steel industry of most industries in the national economy, such as machinery, automobile, military industry, chemical industry, household electrical appliance, shipping, traffic, railway and new industries.s
What is the difference between general steel and special steel?
- Special steel: it is an important symbol to measure whether a country can become a steel power. It is the main steel used in most industries such as machinery, automobile, military industry, chemical industry, household electrical appliance, shipping, traffic, railway and new industries. China's special steel industry is responsible for the special steel products needed by the key industries such as defense industry, high and new technology industry and machinery and automobile industry. China manufacturing growth to provide a space for the development of domestic special steel, sustained and rapid development of manufacturing industry, especially in machinery, automobile, machinery, shipbuilding and other industries, the strong demand of special steel, become the direct impetus to support excellent steel market.s
Is the steel column of the steel structure HM a special steel?
- H steel is a new type of economical construction steel. H type steel cross section shape is reasonable in economy, good mechanical properties, rolling each point on the extended section is uniform, small internal stress, compared with the ordinary beam, a section modulus, light weight, saving advantages of metal, can make the building structure to reduce 30-40%;s
Carbon steel and stainless steel and pattern steel and special steel and high carbon steel difference
- Steel containing less than 0.25% of carbon is low carbon steel, 0. 25%-0.6% is medium carbon steel, more than 0.6% is high carbon steel, low, medium and high carbon steel can be called carbon steel, useful alloy composition is greater than 3, alloy steels
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