You Searched For: "Steel & Steel Fabricated Product Suppliers" In Doha Qatar, Heres What We Found...

Category Description

Steel is an alloy of iron and other elements, primarily carbon. Because of its high tensile strength and low cost, it is a major component in buildings, infrastructure, tools, ships, automobiles, machines, appliances, and weapons. Steel's base metal is iron, which is able to take on two crystalline forms (allotropic forms), body centered cubic (BCC) and face centered cubic (FCC), depending on its temperature. It is the interaction of those allotropes with the alloying elements, primarily carbon, that gives steel and cast iron their range of unique properties. In the body-centred cubic arrangement, there is an iron atom in the centre of each cube, and in the face-centred cubic, there is one at the center of each of the six faces of the cube. In pure iron, the crystal structure has relatively little resistance to the iron atoms slipping past one another, and so pure iron is quite ductile, or soft and easily formed. In steel, small amounts of carbon, other elements, and inclusions within the iron act as hardening agents that prevent the movement of dislocations that otherwise occur in the crystal lattices of iron atoms. The carbon in typical steel alloys may contribute up to 2.1% of its weight. Varying the amount of carbon and many other alloying elements, as well as controlling their chemical and physical makeup in the final steel (either as solute elements, or as precipitated phases), slows the movement of those dislocations that make pure iron ductile, and thus controls and enhances its qualities. These qualities include such things as the hardness, quenching behavior, need for annealing, tempering behavior, yield strength, and tensile strength of the resulting steel. The increase in steel's strength compared to pure iron is only possible by reducing iron's ductility. Steel was produced in bloomery furnaces for thousands of years, but its large-scale, industrial use only began after more efficient production methods were devised in the 17th century, with the production of blister steel and then crucible steel. With the invention of the Bessemer process in the mid-19th century, a new era of mass-produced steel began. This was followed by the Siemens-Martin process and then the Gilchrist-Thomas process that refined the quality of steel. With their introductions, mild steel replaced wrought iron. Further refinements in the process, such as basic oxygen steelmaking (BOS), largely replaced earlier methods by further lowering the cost of production and increasing the quality of the product. Today, steel is one of the most common man-made materials in the world, with more than 1.3 billion tons produced annually. Modern steel is generally identified by various grades defined by assorted standards organizations.

44662897
St 24, Gate 325,, Industr CITY : DohaP.O.Box : 201978
Muhamed Raphy - Chief Accountant
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www.alfuzailgroup.com
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44600810
St 29, Gate 45, Salwa Ind CITY : DohaP.O.Box : 40990
Raj Kumar
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www.almanagroup.com
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44603255
St 45, Gate 03, Salwa Ind CITY : DohaP.O.Box : 40339
A M I Mech E ( U K )
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44326554
Salwa Rd, Al Hamad Automo CITY : DohaP.O.Box : 2051
Mohamed Shiraz - Projects Manager
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www.dimedoha.com
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44603776
St 13, Gate 120, Salwa In CITY : DohaP.O.Box : 8639
Salem Abu Zahra - Managing Director
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www.ebmcqatar.com
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44721367
Al Khor CITY : Al KhorP.O.Box : 60745
Mr Vikas Jayaraj - Project Manager
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www.epcarqatar.com
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55518616
Pink Zone, New Ind Area CITY : DohaP.O.Box : 96932
Ghassan Medhat Mushtaha - General Manager
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www.qatarmfsf.com
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44685144
Souq Al Qalaa, Nr Al Khul CITY : DohaP.O.Box : 6583
Saqlain Haider - Mng Partner
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www.stepcogroup.com
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44600235
St 15, Salwa Ind Area CITY : DohaP.O.Box : 40541 DOHA
Sales Dept - Trdg Div
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www.aaes.net
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44600620
St 11, Gate 57, Salwa Ind CITY : DohaP.O.Box : 3783
Zakaria Al Ashi - Mng Partner
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