------------------------------------------------- Alloy Steel is a metal alloy whose major component is iron‚ with carbon content between 0.02% and 2.14% by mass. An alloy is a metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure‚ while partial solutions give two or more phases that may or may not be homogeneous in distribution‚ depending on thermal (heat treatment) history. Alloys usually have different properties from those
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ore and scrap steel‚ increasing amount of steel imports‚ production technology improvements and economic weakness. Changes in legislation could have severe impacts on the firm’s numerous production facilities and could be costly to become compliant. The fluctuations in both the cost and supply of iron ore and scrap steel directly impact the firm’s profitability because it is difficult to pass those costs on to the customers due to the price-driven level of competition in the steel industry. The rise
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strategy Introduction The steel manufacturing company Corus focuses on meeting the needs of its worldwide customers and providing innovative solutions. It manufactures‚ processes and distributes steel and aluminium products worldwide. Corus is a subsidiary of Tata Steel‚ part of the giant Indian conglomerate. Tata Group includes businesses in many industries - for example‚ chemicals‚ automotive‚ telecommunications‚ leisure and consumer goods (such as Tetley Tea). Tata Steel acquired Corus in 2007 as
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discovered. This microstructure was named by Bian’s colleageus at the United States Steel Corportion. At first microstructure of martensite and bainite seem similar‚ which had many aspects on their transformation of mechanisms. Microstructure of bainite seems to be darker than the mastenisite under a microscope. The reason behind bainite structure became useful was because of its hardness. There are few Heat treatments that steel can be tested by such as Annealing‚ quenching Harderning‚ and Normalizing.
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The Classification of Steel Ball There are two kinds of steel ball‚ casting steel ball and forging steel ball. Casting ball manufacturers mix scrap steel‚ scrap metal and other waste metals in intermediate frequency electric stove for heating so as to fully melting. Right amount precious metal alloy‚ such as ferrochrome‚ ferromanganese‚ vanadium iron are added in melting process. When temperature is above 1550 ℃‚ powering hot metal to the steel mold or mold steel ball production line. This kind
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Carbon steel is steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%. The American Iron and Steel Institute(AISI) defines carbon steel as the following: "Steel is considered to be carbon steel when no minimum content is specified or required for chromium‚cobalt‚ molybdenum‚ nickel‚ niobium‚ titanium‚ tungsten‚ vanadium or zirconium‚ or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0
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ALLOY STEELS I. A. ALLOYING ELEMENTS Any metallic element added during the making of steel for the purpose of increasing corrosion resistance‚ hardness‚ or strength. The metals used most commonly as alloying elements in stainless steel include chromium‚ nickel‚ and molybdenum. Characteristic of alloying elements Very important elements for alloy steels are manganese‚ nickel‚ chromium‚ molybdenum‚ vanadium‚ tungsten‚ silicon‚ copper‚ cobalt and boron. All commercial steels contain 0‚3-0
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Steel and heat treatment MILD STEEL Mild steel is also called plain carbon steel. It is the most common type of steel and it price is pretty low. Its composition is around about 0.05%-0.29% carbon content. Mild steel has a relatively low tensile strength but the surface can be hardened through carburizing. It is mostly used where large amounts of steel needs to be formed eg structural steel MEDIUM CARBON STEEL Medium carbon steel has great wear resistance and is used for forged automotive
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Ms Sanghamitra‚ R&D Refractory Department from TATA STEEL‚ Jamshedpur‚ gave a talk on “STEEL MAKING REFRACTORY”‚ on 12th September 2012 at 11:00 AM at Ceramic Engineering department. Process chart of TSL‚ INDIA was first addressed. So‚ it all starts with iron ores and fluxes (limestone) to be mixed and then pelletized in a sinter plant. At the same time‚ raw coal is processed to form coke in a coke plant and then sintered pellets along with coke are fed to a blast furnace. Hot metal is obtained
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BIS CODE : INDIAN STANDARD for Structural Engineering IS: 800-1984 Code for practice for general construction in steel. SP6 (1) Handbook for structural steel sections. SP:6(5)-1980 Hand book for Cold formed‚ Light Gauge steel structures. SP:6(6)-1972 Handbook for application of plastic theory in design of steel structures. SP:6(4)-1969 Project & Construction Management for Large Industrial Projects. IS: 206 -1992 (4th Rev) Tee & strap hinges - Specification. IS: 459 -1992
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