High carbon steel is often used in high end kitchen knives as it is hard wearing, meaning it stays sharper for longer. Steel is found in everything from aerospace to kitchenware. Such diverse applications require a versatile material - and steel fits the bill.

In a variety of mechanical structures, bolted and welded connections are the two most common forms of connection. This paper mainly through the bolt and welding characteristics to the comparative analysis, summarise the advantages and disadvantages of the two main connection.