best hardness for 90 grinding ball 60 rockwell
best hardness for 90 grinding ball 60 rockwell,Grinding Media & Grinding Balls | Union Process, Inc.Ball hardness is in the 60–67 HRC range. They wear better than 440C stainless steel and through-hardened carbon steel. They are also recommended for applications where a through-hardened steel ball is needed in larger sizes (½" and larger). They are sometimes packaged with a very light oil finish to reduce rust due to.best hardness for 90 grinding ball 60 rockwell,Steel Hardness Conversion - Brinell, Rockwell, Tensile | Best StainlessBRINELL, ROCKWELL, TENSILE, BRINELL, ROCKWELL, TENSILE. Tungsten, A, B, C, Approx. Tungsten, A, B, C, Approx. Carbide, Scale, Scale, Scale, Carbide, Scale, Scale, Scale. Ball 3000, 60KG, 100KG, 150KG, Ball 3000, 60KG, 100KG, 150KG. KG, KG. *, 85.6, *, 68, *, 331, 68.1, *, 35.5, 166,000. *, 85.3, *, 67.5, *, 321.［MATERIALS］ HARDENING AND HARDNESS TESTS .・Expensive in small volumes. ・Good fatigue resistance. Nitriding. 900～1000. 0.003～0.008. Small. Nitriding steel. SACM645. ・Highest hardening hardness. ・Suitable . Rockwell. C scale hardness. （3）. Shore hardness. Standard ball. Tungsten carbide ball. （HRA）. A scale. Load 60kgf. Diamond conical indenter. （HRB）.