Purchasing H13 die steel, most of customers have the ESR requirements, because we all thought the psychological, aluminum die-casting molds,tobe erosion early, cracks, most of this problem happen are because the quality of die steel, we always believe that as long as the purchase to the ESR H13, our quality will be guaranteed,however,often we are purchasing the thing which we call H13 ESR mould,it just work for a few thousands to ten thousand times.the problem of erosion & crack still not be solved, we still can’t find the reasons of depressed, in fact, high purity of high-quality die steel, produce aluminum die-casting molds, do thirty thousands to fifty thousand times,There should be no problem, at this moment, I think of a good proverb, you get what you pay for, not all ESR H13 is good H13.
