
Round Shape Tungsten Carbide Rings Dimensions Customized Wear Resistance
Grade | Chemical composition | Mechanical properties | Physical properties | |||||
Co+Ni % | WC % | Hardness HRA | Transveres rupture strength (Sample B) MPa | Compressive Strength MPa | Young's modulus of elasticty KN/mm2 | Density g/cm3 | Thermal conductivity Cal/cm sec/℃ | |
YGH20 | 10 | 90 | ≧86.0 | ≧2500 | 3500 | 560 | 14.2-14.5 | 0.2 |
YGH25 | 12 | 88 | ≧84.0 | ≧2300 | 3400 | 550 | 14.0-14.3 | 0.21 |
YGH30 | 15 | 85 | ≧83.5 | ≧2520 | 3300 | 540 | 13.8-14.2 | 0.2 |
YGH40 | 18 | 82 | ≧83.0 | ≧2570 | 3200 | 500 | 13.4-13.9 | 0.19 |
YGH45 | 20 | 80 | ≧82.0 | ≧2570 | 3100 | 480 | 13.3-13.9 | 0.18 |
YGH55 | 26 | 74 | ≧81.0 | ≧2570 | 3000 | 450 | 12.6-13.2 | 0.17 |
YGR20 | 10 | 90 | ≧85.0 | ≧2400 | 3400 | 550 | 14.2-14.8 | 0.2 |
YGR25 | 12.5 | 87.5 | ≧83.0 | ≧2270 | 3300 | 540 | 14.0-14.3 | 0.22 |
YGR30 | 15 | 85 | ≧83.0 | ≧2360 | 3200 | 530 | 13.8-14.3 | 0.2 |
YGR40 | 18 | 82 | ≧82.0 | ≧2400 | 3200 | 430 | 13.5-13.9 | 0.2 |
YGR45 | 20 | 80 | ≧80.5 | ≧2250 | 3000 | 480 | 13.4-13.9 | 0.18 |
YGR55 | 25 | 75 | ≧79.0 | ≧2400 | 2800 | 420 | 12.9-13.4 | 0.17 |
YGR60 | 30 | 70 | ≧78.5 | ≧2200 | 2600 | 300 | 12.6-13.1 | 0.16 |
Grade | Recommended applications |
YGH20 | Maximum hardness ,excellent wear resistance in the series.Used in the last 1-2 stands of good high speed line mills for rolling common and hard bars. |
YGH25 | Higher wear resistance,moderate impact resistance in the series.Used in the last 1-3 stands of good high speed line mills for rolling common and hard bars. |
YGH30 | Moderate wear resistance and impact resistance,good for general purposes.Used in the last 1-4 stands of finish rolling mills. |
YGH40 | Best for general purposes.Used in the front stands of good mills and in the rear stands of common mills. |
YGH45 | Used in the first and second stands of finish rolling mills and in the stands of prefinish rolling mills.For every stand of the rolling lines for low speed rolling,low precision and unstable operation. |
YGH55 | Maxmum binder content in YGH series,good toughness and crack resistance.Used in the stands of perfinish rolling mills and for rolling screw thead steel |
Grade | Recommended application | |||||||
YGR20 | High wear resistance and corrosion resistance.Used in the last 1-2 stands of finish rolling mills. | |||||||
YGR25 | High wear resistance and corrosion resistance.Used in the last 1-3stands of finish rolling mills. | |||||||
YGR30 | Good toughness,wear resistance,corrosion resistance and crack resistance.Used in the middie and rear stands of finish rolling mills. | |||||||
YGR40 | Good toughness and thermal crack resistance,dood for general purposes.Used in the most stands of finish rolling mills and in the rear stands of common mills. | |||||||
YGR45 | Good toughness and thermal crack resistance,Used in the front stands of finish rolling mills. | |||||||
YGR55 | Good impact resistance.Used in the stands of prefinish rolling mills for hot rolling screw thread steel bars and they, can be machined with turning and milling. | |||||||
YGR60 | Good impact resistance and toughness. Used for hot rolling screw thread steel bars and in the first and second stands of prefinish rolling mills. | |||||||
The allowable deviation of carbide roll rings
Radial runoutofgroove ≤ 0.013mm
Radial runout of periphery ≤0.01 3mm
End face runout ≤ 0.02mm
End face planeness ≤ 0 .01mm
End face parallelism ≤ 0.01mm
Innerholecylindericit ≤ 0.01mm
Roughness of carbide rolls
inner hole roughness 0.4 u m
periphery roughness0.8 u m
end face roughness 0.4 u m
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Zhuzhou Weikeduo Cemented Carbide Co., Ltd.
Zhuzhou Weikeduo Cemented Carbide Co., Ltd is located in Zhuzhou’s national-level high-tech development zone. Weikeduo has been designed and constructed all based on the requirements of production process of internationally leading cemented carbide and has in its possession internationally leading production and measurement equipment.
At present, Weikeduo is concentrating its attention on the research and development and production of high- performance cemented carbide materia and high precision cemented carbide cutting inserts. Through recent years, it has gradually developed its products category and steadily improved products’ quality, winning good appraisal from customers both at home and abroad.0
Imported internationally leading production process for cemented carbide and the overall implementation of ISO9001 total quality control system make the products quality stabilized and trusted. Weikeduo has in its possession quite a number of technical personnel with high and middle ranks including 3 national level specialists. Weikeduo all along adhere to the principle of “Human beings as the core” and has brought up an excellent team of staff and employees who make unremitting efforts to improve themselves and are bold in making innovations.
“Creating value for customers, Weikeduo makes win-win a reality” is the Weikeduo’s firm and steadfast mission.