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<strong>An overview of ‘steel’</strong>
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Steel is among the most popular materials used in the construction industry. According
to the World Steel Association, in 2018 around 1,808 million tons of crude steel was
produced worldwide and about 50% of this production was utilized by the construction
industry. Further, they also state that there are as many as 3,500 different grades of
steel and each grade offers environmental, chemical and physical properties unique to that
grade of steel. Steel has undergone significant evolution through time and around 75% of
all the types of modern-day steel were developed in the past 20 years. It is interesting
to note that had the Eiffel Tower (constructed in 1887) been constructed in today’s
times, it would require only one-third of the steel used back then.
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<strong>Types of alloy steel</strong>
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There are two kinds of alloy steel – low-alloy steel and high-alloy steel. As
mentioned earlier, the composition and proportion of alloying elements determine the
various properties of alloy steel. Low-alloy steels are the ones that have up to 8%
alloying elements whereas high-alloy steels have more than 8% alloying elements.
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<strong>Alloy steel products and their applications</strong>
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There are hundreds of products that can be manufactured with alloy steels of varying
compositions. These include <a href="https://www.hengrui-topsteel.com/stainless-steel-
pipe-tube/">Stainless Steel Pipe/tube</a>s, alloy steel plates, sheets and coils, alloy
steel bars, rods and wires, alloy steel forged fittings, alloy steel buttweld fittings,
alloy steel flanges, fasteners and more. Alloy steels have many uses in various industries
such as automobiles, mining, machinery and equipment, railways, road construction,
buildings, appliances and off-shore applications.
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<strong>Alloy steel flat products</strong>
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Alloy steels are used to make flat products – plates and strips. Plates are available
in a wide range of grades and sizes. These are used in building construction by welding
plates into fabricated sections.
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<strong>Alloy steel strip and coil products</strong>
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Strips are available as hot and cold rolled strips and hot-dipped galvanized <a
href="https://www.hengrui-topsteel.com/stainless-steel-coil/">Stainless Steel Coil</a>s.
Hot-dipped galvanized coils are used to make construction products that include wall and
roof claddings, side rails, roof purlins, light steel frames and lintels.
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<strong>Alloy steel long products</strong>
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Alloy steels are employed in producing long products used in the construction industry
such as girders, structural sections, <a href="https://www.hengrui-
topsteel.com/stainless-steel-bar/">Stainless Steel Bar</a>s, rails, rods and wires.
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<strong>Alloy steel pipe products</strong>
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Alloy steel pipes are important materials in the building and construction industry
because of their performance characteristics such as ductility, ease of fixing without
heat treatment and high durability. They are an <a href="https://www.hengrui-
topsteel.com/nickel-based-alloy/inconel-alloy/">Inconel Alloy</a> of stainless steel,
chromium and nickel. Some special types of alloy steel pipes include large diameter welded
pipes, electric fusion welded pipes, welded pipes and seamless pipes. They are extremely
useful for high-temperature or corrosive applications besides high-pressure environments.
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<strong>Applications in building bridges</strong>
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Bridges use special <a href="https://www.hengrui-topsteel.com/nickel-based-
alloy/">Nickel Based Alloy</a> steels known as weathering steels. These provide enhanced
protection from corrosion because of the presence of nickel, copper and chromium as
alloying elements. Weathering steels also find uses in buildings as facing material to
improve aesthetics. Weathering steel offers several benefits which include high safety,
ease and quickness of construction, aesthetic looks, shallow depth of construction, low
maintenance and amenable to alterations in the future. Because of its natural weathered
finish, no painting is required thus avoiding environmental issues caused by paints.
Weathering steels are extremely cost-effective in the long run.
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When we talk about materials with wide applications in the construction business,
home, power, and architecture, one material that comes to mind is stainless steel. No
doubt, stainless steel has many applications in the modern world. However, there are many
things people don’t know about it. We all can say that there are many cutleries made of
stainless steel. However, not many people know about the different stainless steel types
used in making many products used by people.
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