All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?

All of the following alloying elements of steel increases hardness but

1.	All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?
A.	Nickel
B.	Vanadium
C.	Molybdenum
D.	Chromium
Answer» B. Vanadium

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All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?

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