China Abrasives manufacturers Green Silicon Carbide (Green SIC) is an extremely hard (Mohs 9.4 / 2600 Knoop) man made mineral that possesses high thermal conductivity and high strength at elevated temperatures (at 1000掳C, SiC is 7.5 times stronger than Al2O3). It has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600掳C, and it does not melt at normal pressures but instead dissociates at 2600掳C. Difference between Green silicon carbide and Black silicon carbide grinding wheels: Green grinding wheels are mainly used on carbides, as carbide tipped tools, however black is used on stone, plastic and so on. The hardness of green silicon carbide is between that of corundum and diamond, and its mechanical strength is higher than that of corundum. Commonly used silicon carbide abrasives have two different crystals, one is green silicon carbide, which contains more than 97% SiC, and is mainly used for grinding hard gold-containing tools. The other is black silicon carbide, which has a metallic luster and contains more than 95% SiC. Its strength is higher than that of green silicon carbide, but its hardness is lower. It is mainly used for grinding cast iron and non-metallic materials. Silicon carbide has two commonly used basic varieties, black silicon carbide and green silicon carbide, both of which belong to 伪-SiC. Black one contains about 98.5% SiC, and its toughness is higher than that of green one. It is mostly used for processing materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals. Green silicon carbide contains more than 99% SiC and has good self-sharpening properties. It is mostly used for processing hard alloys, titanium alloys and optical glass, and is also used for honing cylinder liners and fine grinding high-speed steel tools. In addition, there is cubic silicon carbide, which is a yellow-green crystal produced by a special process. The abrasive tools used to make it are suitable for superfinishing of bearings. The surface roughness can be processed from Ra32-0.16 micron to Ra0.04- 0.02 microns. Sizes: F8-F2000, P12-P2500 Applications: Bonded abrasives and coated abrasives Green silicon carbide data sheet: SizesSIC (%)F.C (%)FE2O3 (%) F12-F90鈮?9.00鈮?.20鈮?.20 F100-F180鈮?8.50鈮?.25鈮?.50 F220-F240鈮?7.50鈮?.25鈮?.60 W63-W20鈮?7.00鈮?.30鈮?.60 W14-W10鈮?5.00鈮?.30鈮?.60 W7-W5鈮?4.00鈮?.50鈮?.60China Abrasives manufacturers website:http://www.mayjoy-abrasives.com/abrasives/