 
  
  
                | Equal to ISO Category Number | Performance | uses | ||
| Density | Bend Strength | Hardness | ||
| G/Cm3 | N/mm2 | HRA | ||
| K01 | 14.9-15.3 | >1180 | >90.5 | sand-blasting nozzles Qualified for fine turning and half-fine turning when cast iron, non-ferrous metal, alloys as well as non-alloy materials cutting consecutively. Can make wire drawing of steel and non-ferrous metal. Also qualified for sand-blasting nozzles. | 
| K01 | 15.1-15.4 | >1300 | >91.5 | |
| K10 | 14.8-15.1 | >1560 | >91.0 | Qualified for machining of chilled cast iron, alloy cast iron, refractory steel and alloy steel. Also Qualified for the machining of common cast iron. | 
| K10 | 14.7-15.1 | >1580 | >91.0 | |
| K20 | 14.7-15.1 | >1670 | >89.5 | Qualified for finish machining and semi-finish machining for the cast iron, non-ferrous metal, alloy and unalloyed materials. Also qualified for wire drawing for the steel and non-ferrous metal, electric drill for geology use and steel drill etc. | 
| K20-K30 | 14.6-14.9 | >1840 | >89 | Qualified for rough machining of cast iron, non-ferrous metal, and nonmetal materials, drawing of steel, non-ferrous metal and pipes, various drills for geology use, tools for machine manufacture and wearing parts. | 
| P10 | 11.1-11.6 | >1180 | >91.0 | Qualified for rough machining, semi-finish machining and finish machining during consecutive machining of carbon steel and alloy steel. | 
| P20 | 11.2-11.8 | >1270 | >90.5 | Qualified for rough machining for rough face of carbon steel and alloy steel, half process during discontinuity cutting. | 
| P30 | 12.5-13.2 | >1430 | >89.5 | Qualified for rough machining for rough face of carbon steel and alloy steel and discontinuity cutting. | 
| M10 | 12.7-13.5 | >1180 | >91.5 | Qualified for finishing and semi-finishing machining of refractory steel, high manganese steel and common steel. | 
| M20 | 12.5-13.2 | >1350 | >90.5 | Qualified for semi-finishing machining of refractory steel, high manganese steel and common steel. |