Steel - is an alloy of iron and carbon plastically treated with a carbon content not exceeding 2.06%, which corresponds to the limited carbon solubility in iron. The most desirable alloy steels are metals, including chrome, nickel, manganese, tungsten, copper, molybdenum, and titanium. Steel Supplier Singapore offers steels which include elements such as oxygen, nitrogen, sulfur, and non-metallic inclusions, mainly sulfur oxides and phosphorus.
How is it made?
Steel is made from pig iron in the process of refining. However, this is an aging process. The current metallurgical installations are dominated by furnaces such as converter, arc, and vacuum furnaces, which allow them to obtain the highest quality steel. Steel is delivered in ingots, round, square, hexagonal bars, round pipes, closed and open profiles, and sheets.
What's the use?
The use of steel materials is most often found in technology and construction in pipes, structures, and coatings. The most commonly used steel grades in this area of the economy are general-purpose and low-alloy steels.
Examples of the use of steel:
car body
roof and facade coverings
tin cans
structures
ship hulls and offshore platforms ...
What are the types of steel?
Structural steel is used, among others, for the construction of steel structures, parts, devices, and machines for specific purposes. When steel elements operate in difficult or extreme weather conditions, etc., special steels are used. Mild Steel Supplier Singapore supplies a wide range of metallurgical products.
The type of structural steel includes low-alloy structural steels. These steels have a low carbon content, up to a maximum of 0.22%, and have limited alloying elements.
Tool steel is most often used to produce tools, elements of measuring instruments, and responsible handles. The steels are characterized by high hardness and resistance to abrasion. They have low deform ability and insensitivity to overheating. These steels' features are achieved by the high carbon content and appropriate heat treatment with less reliable tools. However, using appropriate alloying additives combined with appropriate heat treatment in the case of responsible tools.
Special steel is a type of steel intended for special applications. These types of steels contain a large amount of alloying additives in their composition. Also, they require very complex heat treatment and a high regime of processing and assembly. Due to their high price, they are not widely used. Metal Supplier Singapore supplies them.
The most popular types of special steel are:
Stainless steel - resistant to weather conditions, dilute acids, alkaline solutions, and the like. Its stainless properties are achieved through the increased content of chromium. The higher its content, the greater the corrosion resistance of the steel. Typically between 12% and 25%, chromium is used. The high carbon content also influences the increase in stainless steel, but its content makes the steel brittle.
Acid-resistant steel - resistant to acids of lower strength than sulfuric acid. Its acid-resistant properties are obtained thanks to the stabilization of austenite under normal conditions. It can be obtained thanks to the high content of chromium (17-20%) and nickel (8-14%), and other alloying elements such as manganese, titanium, molybdenum, and copper. After welding elements are made of acid-resistant steel, heat treatment is required.