Y12 (hot rolled) low carbon carbon steel metallographic structure

Introduction

Low Carbon Steel (LCS) has been extensively used in various engineering applications due to its good mechanical properties, including strength, machinability and weldability. Despite the widespread use of LCS, knowledge about its microstructure associated with hot rolling operation is limited. This paper aimed to analyze the microstructure of hot rolled (HR) LCS after selecting the samples of two different carbon contents (0.08%).

Methods

Two grades of LCS (0.08%, 0.10% carbon content) were samples. The LCS sheets were manufactured at the same temperature (1,000°C) and the same rate of reduction (99.7%). Samples were cut from a hot-rolled sheet. Scanning eld electron microscope (SEM) analysis was then performed on the samples to study the microstructure.

Results

The results of the SEM showed that the LCS specimens had a ferritic grain structure in the as- rolled condition. It was also observed that the average grain size of the two grades of steel was micro-meter range.

Discussion

The results of the SEM analysis indicate that the microstructure of the two grades of LCS is different. The microstructure of the 0.08% carbon content steel showed more ferrite and a smaller grain size than the 0.10% carbon content steel. This difference in the microstructure is attributed to the difference in the carbon content between the two grades of steel. The 0.08% carbon content steel was found to have a lower hardness due to the smaller grainsize which led to a higher yield strength. On the other hand, the 0.10% carbon content steel had a lower yield strength due to its larger grain size.

Conclusion

The results of the SEM analysis indicated that the microstructures of the two grades of LCS (0.08%, 0.10% carbon) are different. The 0.08% carbon content steel was found to have a lower hardness due to its smaller grainsize, leading to a higher yield strength, while the 0.10% carbon content steel had a lower yield strength due to its larger grain size. These results may be useful for designing suitable materials and components for a wide range of applications.

Q195Y12(Hot Rolled) Low Carbon Steel Metastructure

Q195Y12(Hot Rolled) low carbon steel is an excellent type of steel product for many ordinary applications. This type of steel is easily workable, yet still has a high strength level that makes it an ideal choice for many users. It can be heat treated and machined to a high tolerance but only requires cold formed steel making it an ideal choice for construction and automotive applications.

The composition of Q195Y12(Hot Rolled) low carbon steel is mainly composed of iron (Fe), Carbon (C) and Manganese (Mn). The carbon content of the steel is very low with a range of 0.2% or less. This makes the steel very ductile and easily formable, and thus ideal for cold forming. The manganese content is typically between 0.8-2%, providing the steel with additional strength and also improving the properties of this metal.

The low carbon content of the steel has a great effect on its relative properties. Q195Y12(Hot Rolled) low carbon steel is exceptionally ductile and is easy to form, making it an ideal choice for those seeking an easy metal to work with. It is also highly weldable and can be easily machined for intricate parts and structures, allowing for a variety of customization.

The metallurgical structure of Q195Y12(Hot Rolled) low carbon steel involves ferrite and pearlite, making it a pearlitic ferrite microstructure. The ferrite present in this steel helps impart strength and hardness and the pearlite component provides a high amount of ductility and formability. The metallurgical structure of this steel is usually controlled to produce the desired mechanical properties and values.

The properties of Q195Y12(Hot Rolled) low carbon steel make it an ideal choice for a variety of applications, particularly those requiring strength and formability. The relatively low cost of the metal and its workability make it an attractive option in industries such as construction and automotive manufacturing. Additionally, the low carbon content makes it an ideal choice for applications requiring increased ductility, including cold forming and machining.