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Low Alloy Steels

Low Alloy Steels Alloying elements are added in the steels for various reasons which include improved corrosion resistance and / or improved mechanical properties at low or elevated temperatures. Alloying elements are also used to improve the hardenability of quenched and tempered steel. The term ‘alloy steel’ is used for those steels which have got …

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Hot Work Die Steel

Hot Work Die Steel Hot work die steels find their use in hot forming processes. Hot forming processes are among the oldest and most important metal forming processes and accounts for a large percentage of metal products. Hot metal forming consists of a forming process either by plastic deformation or solidification where the metal is …

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High Speed Steels

High Speed Steels High speed steels forms a special class of highly alloyed tool steels, combining properties such as high hot hardness and high wear resistance. These are so named mainly because of their ability to machine materials at high cutting speeds. These steels have been widely adopted as the most basic material for cutting …

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Cladding of steels

Cladding of steels There are several industries, such as, chemical and fertilizer industries, nuclear and steam power plants, food processing, and petrochemical industries etc., where corrosive environments are inevitable. Several process equipment / engineering components are exposed to the corrosive environment in these industries which reduces their service life. In such applications, materials (like duplex …

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Finished Steel Products Produced in Steel Plants

Finished Steel Products Produced in Steel Plants Steel plants produce a large number of finished steel products. The steel products are produced in mild steel, in plain carbon steel, in micro alloy steel, in low alloy steel, or in high alloy steel quality. These steel products can be broadly divided into four categories namely (i) …

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Hydrogen Fuel for Future Economy

Hydrogen Fuel for Future Economy Hydrogen is the fuel of the future. It is an energy carrier which can transform the present fossil-fuel dependent economy into a hydrogen economy and which can provide an emission-free fuel. It can be used in internal combustion engines or fuel cells producing virtually no greenhouse gas (GHG) emissions when …

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Hot Blast Stove Refractories

Hot Blast Stove Refractories Hot blast stove is used to preheat air used in the blast furnace. It works as a counter-current regenerative heat exchanger. It consists of tall, cylindrical steel structures lined with different kinds of refractories and almost completely filled with checker bricks where heat is stored and then transferred to the fresh …

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Blast Furnace Valves

Blast Furnace Valves Blast furnace (BF) process needs large quantity and variety of valves. During ironmaking in the BF, a number of gases, utilities, and dust are to be handled. These include (i) combustion gas, combustion air, and waste flue gas in hot blast stoves, (ii) cold air blast, oxygen, and hot air blast, (iii) …

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Safety, Environment, and Health Issues of Iron and Steel Industry

Safety, Environment, and Health Issues of Iron and Steel Industry The iron and steel industry is a heavy industry. In addition to the safety hazards normally present in giant plants, massive equipment, and movement of large masses of materials, employees are exposed to the heat of molten metal and slag at temperatures upto 1,800 deg …

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Steel Welding Electrodes

Steel Welding Electrodes Welding is the strongest method for bonding metal to metal. It is a process for joining or fastening two pieces of similar metals (work pieces) by melting and fusing (i) the base metals being joined, and (ii) the filler metal applied. Welding can be done without the use of a filler metal …

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