The correct answer is: A. Alloy steel
Alloy steel is a type of steel that contains one or more alloying elements, which are elements added to steel to improve its properties. Alloy steels are used in a wide variety of applications, including steel cored conductors.
Stainless steel is a type of steel that is resistant to corrosion. It is made by adding chromium to steel, which forms a protective layer on the surface of the steel. Stainless steel is used in a variety of applications, including kitchen appliances, cutlery, and surgical instruments.
Mild steel is a type of steel that is low in carbon content. It is relatively soft and easy to work with, and it is used in a variety of applications, including construction, manufacturing, and automotive.
High speed steel is a type of steel that is used for tools that need to withstand high temperatures and wear. It is made by adding tungsten, molybdenum, and vanadium to steel, which makes it very hard and durable. High speed steel is used in a variety of applications, including cutting tools, drills, and lathes.
In conclusion, the steel used in steel cored conductors is usually alloy steel. Alloy steel is a type of steel that contains one or more alloying elements, which are elements added to steel to improve its properties. Alloy steels are used in a wide variety of applications, including steel cored conductors.