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| Code | Type | Features | Application |
| A | Brown Fused Alumina | High hardness and toughness. | For medium and high tensile strength metal such as ordinary carbon steel , alloy steel , malleable cast iron, hard bronze, etc. |
| WA | White Fused Alumina | White,higher hardness than that of A. Easily broken, sharp edges,excellent cutting performance, low level of grinding heat. | For harder material and metals sensitive to heat such as chilled steel, high carbon steel . ordinary high speed steel, alloy steel. Mainly suitable for grinding and forming of instruments, cutting tools , mouldings , gears, threads, thin-shell parts, etc. |
| PA | Pink Fused Alumina | Pink,similar hardness with WA, higher toughness than WA, sharp edges ,excellent durability. | For chilled steel, cutting tools and workpiece of alloy steel as well as precision grinding of measuring tools and parts of instruments and apparatus, etc. |
| SA | Monocrysta Line Fused Alumina | Light yellow or yellow,higher hardness and toughness than WA. Grains are ball-shaped single crystals with outstanding multicomer edges and strong impact strength. | For stainless steel ,high vanadium-high speed steel and workpiece in high toughness and being easily-deformed and burnt. |
| MA | Microcrysta Fused Alumina | Blue, grains are composed of small crystals .High toughness,strong shrength,excellent self-sharpening performance. | For ball-bearings , stainless steel and special nodular cast iron as well as forming, grinding, infeeding grinding and precision grinding, etc. |
| A/WA | Mixture Of A And WA | Advantages of A and WA. | For nodular cast iron crankshaft, cam shafts, etc. |
| GC | Green Silicon Carbide | Green , high hardness ,brittle .Sharp, excellent capacity of heat-transmission. | For cutting tools, hard alloy, non-ferrous metal and non-metal materials, etc. |
| C | Black Silicon Carbide | High hardness, brittle. Sharp,certain capacity of heat-transmission. | For non-ferrous and non-metal materials. |
| JR | Diamond | Excellent toughness ,strong grinding capacity,excellent durability. | For very high materials, such as glass, ceramics, ferrite, semiconductor material, stone material, hard alloy materials, etc. |
Grit Sizes | Usage |
| 4、5、6、8、10、12、14、16、20、22、24、30 | For rough grinding and outing |
| 36、40、46、54、60、70 | For common semi-precision grinding |
| 80、90、100 | For common fine grinding |
| 120、150、180、220、240、W63、W50、W40、W28、W20 | For polishing and threading |
| W14、W10、W7、W5、W3.5、W2.5、W1.5、W1.0、W0.5 | For mirror-surface grinding and finer polishing |
| Code | Type | Features | Application |
| V | Vitirfied | Good heat resistance,water-proof, large porosity, elasticity differenc. | Extensive application, suitable for forming grinding, gear grinding, screw thread grinding V<35m/s. |
| B | Resin Bonded | High strength, definite elasticity,impact resistance,poor solidity, heat tolerance, small, porosity. | Suitable for high speed grinding v>50m/s. Thin disc wheel for step grinding. |
| R | Rubber | Higher strength and elasticity, less pores and poor heat tolerance. | Suitable for grinding races/rollers of bearings and ideally used as regulating wheels in centerless grinding ,thin cutting wheels and polishing wheels. |
| M | Metal | Good toughness and forming, strong strength, poor self-sharping. | Suitable to be made to diamond abrasive tools. |
