Cement special cast steel ball - Forging Steel Co., Ltd. Jinan Public Victoria 13953120393 Gong (Manager) Public dimensional brand of high-chromium alloy casting ball is widely used in cement, metal mining, coal slurry, thermal power, chemical engineering, ceramic coating, light paper, magnetic materials and other industries ultrafine powder preparation and processing. Products of high hardness, low wear, good toughness, less broken, in the course of the sphere will further increase the surface hardness, wear resistance increased, while improving mill production capacity, improve the cement surface area and concentrate recovery. Seven series now has more than 100 varieties of specifications, best-selling domestic 31 provinces, municipalities and autonomous regions, more than 2,000 enterprises, and exported to Japan, South Korea, the United States, Australia, Southeast Asia and Africa. Product Name brand chemical composition chemical composition (%) C Si Mn Cr PS Mo Al ordinary high-chromium alloy casting ball ZQCr10 1.8-3.2 0.3-1.2 0.3-1.0 10-10.5 ≤0.10 ≤0.10 Trace Trace Cu Ni Nb Ti Zr VB Mg trace Trace Trace Trace Trace Trace special high-chromium alloy casting ball ZQCr12 To adjust the chemical composition or adding other alloying elements, in addition to contractually agreed price. ZQCr15 ZQCr17 ZQCr20 ZQCr26 microstructure and mechanical properties of the name brand and the impact value ak (J / cm2) microstructure surface hardness (HRC) falling ball impact fatigue life (number of) ordinary high-chromium alloy casting ball ZQCr10 ≥2.5 M + C 58-66 ≤Ф80 ≥15000> Ф80 ≥10000 Note: C1- primary carbide, C2- secondary carbides, M- martensite than the national standard 56-58 degrees (HRc) high chrome ball can be reduced by about 30% wear.