Once the steel has the specified carbon content and other elements that enhance its performance, the molten steel is poured into a mould.
Here, the steel is shaped and allowed to solidify. Afterwards, cutting the metal into desired shapes like slabs, blooms and billets takes place.
#Examples of mild cataplexy free
The product obtained still needs to be imparted a good surface quality free from casting defects. The primary forming process uses hot rolling quite often for this purpose. Hot rolled steel products are usually categorised into flat products, custom products, long products, and seamless tubes.Īlthough we have the completed mild steel product by the end of the above process, it is usually formed one more time to improve its mechanical properties in line with application requirements. Secondary forming gives it the final shape and properties. The forming methods include:Īs mentioned above, mild steel has lower carbon content than medium and high carbon steels. The carbon content is up to 0.25% in mild steel but some schools of thought consider carbon steel as mild steel up to a carbon content of 0.45%. The low carbon content makes this steel a highly machinable metal. It can be cut, machined and formed into intricate shapes without adding proportional stresses to the workpiece. It also facilitates better weldability.Ī host of alloying elements can improve the chemical properties. These elements will affect the physical/chemical properties favourably and make the final product suitable for the application. The elements that may be added include chromium (Cr), cobalt (Co), phosphorus (P), sulphur (S), and manganese (Mn), among others.įor instance, chromium imparts the property of corrosion resistance and increases mild steel’s hardness. In its pure form, mild steel will rust easily due to oxidation. Unlike iron oxide, chromium metal on exposure to the atmosphere forms a dense layer of chromium oxide that does not fall off, and ultimately protects the metal underneath from further corrosion attacks.Ĭopper in limited quantities also works like chromium oxide. Mild steel pipes may be galvanised for better protection from the atmosphere. Other elements may be added to improve wear resistance, ultimate tensile strength, and heat resistance. Its impressive properties are responsible for growing use in a variety of industries.
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