Boron carbide ball Performance units, Composition B4C Density，g/cm3, 2.50-2.65 Modulus of elasticity，Gpa 510 KNOOP hardness 3300 Flexural strength，Mpa 400-650 Compressive strength，Mpa 4100 Fracture toughness,Mpa m1/2 4.5-7.0 Thermal expansion coefficient.1/0k 4.5*106 Thermal conductivity/m 0k 29 Maximum use temperature in air，℃ 1500

Silicon carbide grinding ceramics ball with normal pressure sintering of silicon carbide (SSiC) by fine silicon carbide powder sintering additives, sintering in 2000-2200 degrees of inert atmosphere, silicon carbide ceramics with high performance, good thermal shock and thermal conductivity and high wear resistance, is to make chemical pump seal ring, shaft sleeve, high temperature nozzle, wear-re