Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with

Carbon percentage in high speed steel tool material is 0.6 to 1.0. The

1.	Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with
A.	vanadium & chromium
B.	silicon
C.	tungsten
D.	manganese
Answer» B. silicon

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Carbon percentage in high speed steel tool material is 0.6 to 1.0. The hardness of carbon tool steels is increased, when it is alloyed with

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