The present invention relates to a high chromium cast iron having high hardness and excellent acid resistance and resistance to formaldehyde. More specifically, The ratio of Cr / (C + N) is in the range of 8 to 70, Mn is not more than 15, V is not more than 3, W is from 1 to 6, C is from 0.5 to 4.0, Chrome cast iron which is excellent in acid resistance and resistance to formaldehyde.;According to the present invention as described above, since the steel has superior corrosion resistance than the conventional stainless steel, it is used as a component of the abrasion resistance equipment. However, the chromium cast iron exhibiting the weak properties such as the formula and the erosion corrosion is added with the elements improving the acid resistance and the corrosion resistance It is possible to prevent the equipment from being damaged due to erosion or abrasion that occurs within a short time.
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