Chinese Grade |
Equal to ISO Category Number | Chemical Composition |
Physical Mechanical Properties | Application | ||||
WC | Co | Density | Bend Strength | Hardness | ||||
% | % | g/Cm3 | N/mm2 | HRA | ||||
YG3 | K01 | 96.5-97 | 3 | 14.9-15.3 | ≥1180 | ≥91.0 | It is suitable for the finishing of cast iron, non-ferrous metals, alloys and non-metallic materials, and semi-finishing vehicles for intermittent cutting. |
|
YG6X | K10 | 93.5 | 6 | 14.8-15.1 | ≥1420 | ≥92 | Finishing of chilled hard alloy cast iron and heat resistant alloy steel and ordinary cast iron | |
YG6 | K20 | 94 | 6 | 14.7-15.1 | ≥1600 | ≥91 | Cast iron, non-ferrous metals and alloys, non-metallic materials, medium to cutting, semi-finishing and finishing. | |
YG8 | K20-K30 | 92 | 8 | 14.5-14.9 | ≥1600 | ≥90 | Suitable for casting of cast iron, non-ferrous metals and their alloys and non-metallic materials. | |
YG10 | K40 | 90 | 10 | 14.3-14.7 | ≥1900 | ≥89 | It is used for large batch production and has excellent strength and toughness. | |
YG10X | K40 | 89 | 10 | 14.3-14.7 | ≥2200 | ≥89.5 | Suitable for small diameter micro drills, end mills, rotary boring tools, etc. | |
YG15 | K30 | 85 | 15 | 13.9-14.2 | ≥2100 | ≥87 | Forging, perforating and stamping tools for steel bars and steel tubes with high compression ratios and working under large stresses |
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YG20 | K30 | 80 | 20 | 13.4-13.7 | ≥2500 | ≥85.5 | Stamping die, stamping watch parts, musical instrument spring piece; | |
YG20C | K40 | 80 | 20 | 13.4-13.7 | ≥2200 | ≥82 | Production of standard parts, bearings, tools and other industries for cold heading, cold punching, cold pressing die, warhead to the shell of the stamping die |
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