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< < | 辊环牌号性能表 Table of grades and properties of carbide roll rings | | 牌号 | 化学成分
Chemical
composition | 力学性能
Mechanical properties | | Grade | Co+Ni
+Cr% | WC% | 硬度
Hardness
(HRA) | 抗弯强度
T.R.S.
(Mpa) | 抗压强度
Compressive
Strength
(Mpa) | 杨氏弹性模量
Youngs
modulus of
elasticity
(KN/mm2) | 密度
Density
(g/cm3) | 导热率
Thermal
conductivity
Cal/cm
sec/ C | | YGR20 | 10 | 90 | 87.2 | 2730 | 3400 | 550 | 14.49 | 0.2 | | YGR25 | 12.5 | 87.5 | 85.6 | 2850 | 3300 | 540 | 14.21 | 0.22 | | YGR30 | 15 | 85 | 84.4 | 2700 | 3200 | 530 | 14.03 | 0.2 | | YGR40 | 18 | 82 | 83.3 | 2640 | 3200 | 430 | 13.73 | 0.2 | | YGR45 | 20 | 80 | 81.5 | 2570 | 3000 | 480 | 13.53 | 0.18 | | YGR55 | 25 | 75 | 79.8 | 2550 | 2800 | 420 | 13.02 | 0.17 | | YGR60 | 30 | 70 | 79.2 | 2480 | 2600 | 300 | 12.68 | 0.16 | | YGH10 | 8 | 92 | 87.5 | 2800 | 3500 | 560 | 14.47 | 0.2 | | YGH20 | 10 | 90 | 87 | 2800 | 3500 | 560 | 14.47 | 0.2 | | YGH25 | 12 | 88 | 86 | 2700 | 3400 | 550 | 14.25 | 0.21 | | YGH30 | 15 | 85 | 84.9 | 2700 | 3300 | 540 | 14.02 | 0.2 | | YGH40 | 18 | 82 | 83.8 | 2850 | 3200 | 500 | 13.73 | 0.19 | | YGH45 | 20 | 80 | 83 | 2700 | 3100 | 480 | 13.54 | 0.18 | | YGH55 | 26 | 74 | 81.5 | 2530 | 3000 | 450 | 13.05 | 0.17 | | YGH60 | 30 | 70 | 81 | 3000 | 3000 | 420 | 12.71 | 0.16 |
| 牌号 | 推荐用途 | | Grade | Recommended applications | | YGR20 | 具有高的耐磨性和耐腐蚀性，用于精轧机倒数第1~2架 | | High wear resistance and corrosion resistance.Used in the last 1~2 stands of finishing mill | | YGR25 | 具有高的耐磨性和耐腐蚀性。用于精轧机倒数第1~3架 | | High wear resistance and corrosion resistance.Used in the last 1~3stands of finishing mills |
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