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    Steel is an alloy made up of iron with typically a few tenths of a percent of carbon to improve its strength and fracture resistance compared to other forms of iron. Many other elements may be present or added. Stainless steels that are corrosion - and oxidation-resistant need typically an additional 11% chromium.

    • History of steelmaking

      Steel was known in antiquity and was produced in bloomeries...

    • Steel industry

      The steel industry is often considered an indicator of...

    • Iron

      Iron (/ ˈ aɪ ər n /) is a chemical element with symbol Fe...

  2. Steel is iron mixed with carbon and perhaps other metals. It is harder and stronger than iron. Iron with more than 1.7% percent carbon by weight is named cast iron. Steel is different from wrought iron, which has little or no carbon.

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  4. Steel is a 1997 American superhero film loosely based on the DC Comics character of the same name. The film stars Shaquille O'Neal as John Henry Irons and his alter-ego Steel, Annabeth Gish as his wheelchair-using partner Susan Sparks, and Judd Nelson as their rival Nathaniel Burke. The plot centers on an accident caused by Burke which leaves Sparks paralyzed.

  5. Stainless steel, due to having a more positive electrode potential than for example carbon steel and aluminium, becomes the cathode, accelerating the corrosion of the anodic metal. An example is the corrosion of aluminium rivets fastening stainless steel sheets in contact with water.

  6. Steel, a device held against the strings when playing a steel guitar Sword , sometimes termed "steel" in certain cultures Steel belt , used in many industries such as food, chemical, wood processing and transportation.

    • Overview
    • Common structural shapes
    • Standards
    • Steel vs. concrete
    • Thermal properties
    • Fire resistance

    Structural steel is a category of steel used for making construction materials in a variety of shapes. Many structural steel shapes take the form of an elongated beam having a profile of a specific cross section. Structural steel shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices, etc., are regulated by standards in most industrialized countries. Most structural steel shapes, such as I-beams, have high second moments of area, which means they are very

    The shapes available are described in many published standards worldwide, and a number of specialist and proprietary cross sections are also available. A steel I-beam, in this case used to support timber joists in a house. I-beam Z-Shape HSS-Shape Angle Structural channel, or C-beam, or C cross-section Tee Rail profile Railway rail Vignoles rail Flanged T rail Grooved rail Bar, a long piece with a rectangular cross section, but not so wide so as to be called a sheet. Rod, a round or square secti

    Most steels used throughout Europe are specified to comply with the European standard EN 10025. However, many national standards also remain in force.

    Steels used for building construction in the US use standard alloys identified and specified by ASTM International. These steels have an alloy identification beginning with A and then two, three, or four numbers. The four-number AISI steel grades commonly used for mechanical engi

    The concept of CE marking for all construction products and steel products is introduced by the Construction Products Directive. The CPD is a European Directive that ensures the free movement of all construction products within the European Union. Because steel components are "sa

    Most construction projects require the use of hundreds of different materials. These range from the concrete of all different specifications, structural steel of different specifications, clay, mortar, ceramics, wood, etc. In terms of a load bearing structural frame, they will ge

    The tallest structures today are constructed using structural steel due to its constructability, as well as its high strength-to-weight ratio. In comparison, concrete, while being less dense than steel, has a much lower strength-to-weight ratio. This is due to the much larger vol

    Structures consisting of both materials utilize the benefits of structural steel and reinforced concrete. This is already common practice in reinforced concrete in that the steel reinforcement is used to provide steel's tensile strength capacity to a structural concrete member. A

    The properties of steel vary widely, depending on its alloying elements. The austenizing temperature, the temperature where a steel transforms to an austenite crystal structure, for steel starts at 900 °C for pure iron, then, as more carbon is added, the temperature falls to a minimum 724 °C for eutectic steel. As 2.1% carbon is approached, the austenizing temperature climbs back up, to 1,130 °C. Similarly, the melting point of steel changes based on the alloy. The lowest temperature at ...

    Steel loses strength when heated sufficiently. The critical temperature of a steel member is the temperature at which it cannot safely support its load. Building codes and structural engineering standard practice defines different critical temperatures depending on the structural element type, configuration, orientation, and loading characteristics. The critical temperature is often considered the temperature at which its yield stress has been reduced to 60% of the room temperature yield stress.

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