The HS 400 category is for steel with a nominal hardness of 400 BHN, designed for moderate wear applications. Engineering specifications sometimes refer to this steel as AR 400 or 400F (where the “F” traditionally stood for “formable”, although all HS 400 is formable today). Its balanced combination of chemistry, welding, forming and impact values results in a versatile wear plate that exhibits both hardness and strength. HS 400 steel is a standard solution for mining, transportation, forestry and construction applications.
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