OEM Roller
Tungsten carbide seaming roller and other rollers produced under customer‘s drawing.
INTRODUCTION
Table of grades and properties of carbide rolls rings and related data
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| Grade | Hardness (HRA) | Transverse rupture strengh (Mpa) | Compressive strength (Mpa) | Density g/cm3 |
| YG15 | ≥ 86.5 | ≥2220 | 2985 | 13.95-14.15 |
| YGH30 | ≥ 83.5 | ≥2520 | 3300 | 13.90-14.10 |
| YGH40 | ≥ 83 | ≥2570 | 3200 | 13.60-13.8 |
| YGH45 | ≥ 82 | ≥2570 | 3100 | 13.45-13.65 |
| YGH55 | ≥ 81 | ≥2570 | 3000 | 12.90-13.10 |
| YGR30 | ≥ 83 | ≥2360 | 3200 | 13.98-14.18 |
| YGR40 | ≥ 82 | ≥2400 | 3200 | 13.60-13.80 |
| YGR45 | ≥ 80.5 | ≥2250 | 3000 | 13.45-13.65 |
| YGR55 | ≥ 79 | ≥2400 | 2800 | 13.00-13.20 |
| YGR60 | ≥ 78.5 | ≥2200 | 2600 | 12.60-12.80 |
| Recommended applications of grades for carbide roll rings | ||||
| Grade | Recommended applications | |||
| YG15 | Cold rolling screwthread steel | |||
| YGH30 | Moderate wear resistance and impact resistance,good for general purposes.Used in the last 1-4 stands or all 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 | Maxmun binder content in YGH series,good toughness and crack resistance.Used in the stands of prefinish rolling mills and for roll rings for hot rolling screw thread steel. | |||
| YGR30 | Good toughness,wear resistance,corrosion resistance and crack resistance,Used in the middle and rear stands of finish rolling mills. | |||
| YGR40 | Good toughness and thermal crack resistance.good for general purposes.Used in most stands of the 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. | |||
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