Phosphorus is added to steel mold for which of the following reason? – McqOptions

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1.	Phosphorus is added to steel mold for which of the following reason?
A.	It increases strength and hardness of steel
B.	It increases refractoriness of steel
C.	It increases porosity of steel
D.	It increases finishing of steel
Answer» B. It increases refractoriness of steel

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