obm process in steel making wikipedia

What does OBM stand for?

Jul 09, 2018· The old Huntsman crucible process, which produced a paltry 60 pounds of steel in two weeks, was obsolete The Bessemer Converter was the new king of steel American Steel...

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Steel Manufacturing Process: Coal & Coke

Jan 17, 2019· Coal is a mineral consisting mainly of sedimentary fossilized carbon with smaller amounts of other elements, such as sulfur, hydrogen, oxygen, nitrogen and more Coal is found under the earth ....

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Carbon steel

Carbon steel or plain-carbon steel, is a metal alloyIt is a combination of two elements, iron and carbonOther elements are present in quantities too small to affect its properti The only other elements allowed in plain-carbon steel are: manganese (165% max), silicon (060% max), and copper (060% max) Steel with a low carbon content has the same properties as iron, soft but ,...

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Blast furnace

A blast furnace is a special type of furnace for smelting iron from oreBlast furnaces are very large They can be up to 60 metres (200 ft) tall and 15 metres (49 ft) in diameterThe blast furnace is the biggest chemical reactorBlast furnaces are also called high ovens A blast furnace is usually built with a steel case and bricks made of magnesium oxide or other refractory material inside ....

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Steel Pipe Manufacturing Processes

In the Mandrel Mill Process, a solid round (billet) is used It is heated in a rotary hearth heating furnace and then pierced by a piercer The pierced billet or hollow shell is rolled by a mandrel mill to reduce the outside diameter and wall thickness which forms a multiple length mother tube...

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Steel Making

Steel Making Carbon Equivalent - To a good approximation, the weldability of steel can be estimated from its chemical composition The most significant alloying element effecting weldability is carbon The effects of other elements can be estimated by equating them to an additional amount of carbon The total alloy content has...

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Open hearth furnace

Open hearth furnaces are one of a number of kinds of furnace where excess carbon and other impurities are burnt out of pig iron to produce steelSince steel is difficult to manufacture due to its high melting point, normal fuels and furnaces were insufficient and the open hearth furnace was developed to overcome this difficultyCompared to Bessemer steel, which it displaced, its main ....

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125 Iron And Steel Production

The production of steel in an EAF is a batch process Cycles, or "heats", range from about 1-1/2 to 5 hours to produce carbon steel and from 5 to 10 hours or more to produce alloy steel Scrap steel is charged to begin a cycle, and alloying agents and slag materials are added for refining Stages...

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iron and steel industry

The process also enables the making of steel with a minimum of nitrogen, which can make steel brittle The speed of the oxygen process has had an important effect on the industry An oxygen converter can produce a batch of quality steel in 30 to 45 minut To produce steel of comparable quality in an open-hearth furnace without an oxygen lance ....

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How steel pipe is made

During this process, machines called manipulators flip the steel so that each side is processed evenly 4 Ingots may also be rolled into slabs in a process that is similar to the bloom making process The steel is passed through a pair of stacked rollers which stretch it...

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Steel Making

Steel Making Steel Making Process Gerdau Ameristeel utilizes the Electric Arc Furnace - Continuous Casting method in the production of structural steel products Recycled steel scrap provides the raw material for the Electric Arc Furnaces (EAF) After the...

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125 Iron And Steel Production

The production of steel in an EAF is a batch process Cycles, or "heats", range from about 1-1/2 to 5 hours to produce carbon steel and from 5 to 10 hours or more to produce alloy steel Scrap steel is charged to begin a cycle, and alloying agents and ,...

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The 6 Steps in the Manufacturing Process of a ,

Building a stainless steel product from the ground up involves a lot of work, technology and science Even though there are billions of users of stainless steel items around the world, there are very few people (relatively) who know what goes into making a stainless steel product from scratch The manufacturing process of a stainless steel ....

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Stainless steel

Stainless steel, also known as inox steel, is a steel alloy with a minimum of 105 or 11% chromium content by mass Stainless steel does not stain, corrode, or rust as easily as ordinary steel, but it is not stain-proof The term 'corrosion resistant steel' is used when the alloy has less than the 12% minimum of chromium, for example in the aviation industry...

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EAF Electric Arc Furnace

Nov 24, 2008· EAF Melting scrap steel in New Zealand The arc is about 3000°Celcius and scrap steel is melted in three charges to get around 40 tonnes of steel ,...

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