Abrasion-Resistant White Cast Iron 7-ASTM A532_A532M
By the end of the 60s many industrial countries used Cr26, Cr27 and Cr28 white cast iron to produce castings. The products not only require good impact wear resistance but also require good heat resistance. In 1965 Japan introduced Cr27 high chromium white cast iron to produce crusher hammer.
In 1967 the white cast iron had successful application on the bell of the blast furnace. Which reasonably replaced the original high chromium steel and low alloy steel. And also it obviously improved the service life of the blast furnace. Some countries also use Cr26 high chromium cast iron to produce more severe grinding balls.
In recent years the alloy elements such as Ni, Mo, V, W, Ti, B and Nb added into the high chromium white cast iron. That will further improve the properties of high chromium cast iron. And by the effect of the composite alloy it further refines the microstructure. Thus effectively improve its wear resistance. And also have comprehensive mechanical properties.