80) which of the following gives the correct order of increasing hot hardness of cutting tool materials?
High speed steel, Carbide, Diamond
Related Engineering Materials MCQ with Answers
are free from oxygen
When steel has been fully deoxidized before casting and no gas was evolved during solidification, the resultant steel is known as killed steel. It is combined with an agent like casting before use. This steel is called "killed" because it quietly solidifies in the mold and no gas evolves.
medium carbon steel
Connecting rod is, usually, made from Medium carbon steel