Normalization, Rolling, Aging, Quenching, and Tempering Study on Micro‐Alloyed Steel

AbstractA noticeable increase in the consumption of high‐strength low‐alloy (HSLA) steels within the realm of structural applications can be seen in last few decades. Various industrial applications, notably in pressure vessels and line‐pipe systems across multiple sectors, including the oil industry are using HSLA. In oil industry the use or potential of API X‐65 for line‐pipe impacted in a lot in industry. Normalization, rolling, aging, quenching and tempering (QT) are parts of main process during manufacturing of HSLA steels. Limited quantity of components (alloying) are used to strengthen the low carbon steels. Also, precipitation strengthening is increased with the presence of niobium (Nb), vanadium (V), and titanium (Ti). Major impact on the basic properties like hardness, strengthening of HSLA steels can be seen during the evaluation of HSLA steel can be seen after the thermo mechanical treatments (TMT). In this work, tensile specimens are prepared after applying rolling, aging and cold work and better mechanical properties (MP) has been achieved which are more beneficial for the use in industry.

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