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Table of grades and properties of carbide roll rings and related data
| Grade | Wc(%) | Co(%) | Ni(%) | Cr(%) | g/cm³ | ≥HRA | ≥N/mm² |
| PL08R | 92 | 8 | 14.7±0.15 | 88.0 | 2800 | ||
| PL10R | 90 | 10 | 14.5±0.15 | 87.5 | 2750 | ||
| PL12R | 88 | 12 | 14.2±0.15 | 86.0 | 2700 | ||
| PL15R | 85 | 15 | 14.1±0.15 | 85.0 | 2600 | ||
| PL18R | 82 | 18 | 13.7±0.15 | 83.5 | 2650 | ||
| PL20R | 80 | 20 | 13.5±0.15 | 82.5 | 2550 | ||
| PL25R | 75 | 25 | 13.1±0.15 | 80.5 | 2450 | ||
| PL30R | 70 | 30 | 12.7±0.15 | 79.0 | 2350 | ||
| PL06H | 94 | 8 |
|
| 14.8±0.15 | 89.0 | 2850 |
| PL08H | 92 | 10 |
|
| 14.7±0.15 | 88.5 | 2750 |
| PL10H | 90 | 15 |
|
| 14.5±0.15 | 88.0 | 2700 |
| PL15H | 85 | 20 |
|
| 14.1±0.15 | 85.0 | 2650 |
| PL20H | 80 | 25 |
|
| 13.5±0.15 | 83.0 | 2600 |
| PL25H | 75 | 30 |
|
| 13.1±0.15 | 81.5 | 2550 |
| PL30H | 70 | 32 |
|
| 12.7±0.15 | 80.0 | 2450 |
| PL32H | 68 | 32 |
|
| 12.5±0.15 | 78.5 | 2300 |
| YGR20 | 90 | 10 | 14.4±0.15 | 87.5 | 2400 | ||
| YGH25 | 88 | 12 | 14.3±0.15 | 86.5 | 2300 | ||
| YGH30 | 85 | 15 | 14.2±0.15 | 85.0 | 2700 | ||
| YGR40 | 82 | 18 | 13.7±0.15 | 83.5 | 2600 | ||
| YGR45 | 80 | 20 | 13.5±0.15 | 82.5 | 2500 | ||
| YGR55 | 75 | 25 | 13.1±0.15 | 80.0 | 2400 | ||
| YGR60 | 70 | 30 | 12.8±0.15 | 78.0 | 2300 | ||
| YGR40T | 85 | 15 | 14.1±0.15 | 84.5 | 2700 | ||
| YGR45T | 80 | 20 | 13.5±0.15 | 84 | 2580 | ||
| Grade | Recommenden application |
| PL08R | Maximum |
| PL10R | Higher wear resistance. mode rate impact resistance in the series. Used in the last 1-2 stands of good high speed finishing rolling mils for rolling common and hard steel bars. |
| PL12R | High wear resistance and corrosion resistance. Used in the last 1~4 stands of finishing mills |
| PL15R | Moderate wear resistance and impact resistance, good for general purposes. Used in the last1-4stands or all stands of finishing miffs. |
| PL18R | Good toughness and thermal crack resistance,good for general purposes Used in most stands of the finishing mills and in the rear stands of common mills. |
| PL20R | Best for general purposes. Used in the front stands of good rolling mills and in the rear stands of common rolling mills. |
| PL25R | Used in the first and second stands of finishing rlling mitis and in the stands of pre-finishing rolling mills For every stand of rolling lines for low speed rolling low precision and unstable operations. |
| PL30R | Maximum binder content in YGH series,good toughness and thermai crack resistance, Used in the stands of pre-finishing roiling milis and for roll rings for hot rolling of ribbed steel. |
| PL06H | It possesses the highest hardness and the best wear-resistance among all thevarieties of cemented carbide roll rings,thus used for the rolling of common wire and hard wire on the last 1~2 stands of high-speed wire rod finishing mill |
| PL08H | It possesses better wear-resistance and moderate impct-resistance with the hardness second to PL06H among all the varieties,thus used at the last two stands of high-speed wire rod finshing mill |
| PL10H | It possesses the moderate wear-resistance and impact -resistance ,thus used at the third-fourth stands from bottom of high-speed wire rod finishing mill . |
| PL15H | Moderate wear resistance and impact resistance, good for general purposes. Used in the last 1~4 stands or all stands of finishing miffs. |
| PL20H | Best for general purposes. Used in the front stands of good rolling mills and in the rear stands of common rolling mills. |
| PL25H | Maximum binder content in YGH series,good toughness and thermai crack resistance, Used in the stands of pre-finishing roiling rnilis and for roll rings for hot rolling of ribbed steel. |
| PL30H | Maximum binder content in YGH series,good toughness and thermai crack resistance, Used for roll rings for hot rolling of ribbed steel and in the stands of pre- finishing rolling milis . |
| PL32H | With good toughness and impact resistance,used for bar,deformed bar finish stand rolling |
| YGR20 | High wear resistance and corrosion resistance Used in the last 1-2 stands of finishing mills. |
| YGH25 | High wear resistance and corrosion resistance. Used in the last 1-3 stands of finishing mills. |
| YGH30 | Good toughness , wear resistance , corrosion resistance and thermal crack resistance .Used in the |
| YGR40 | Good toughness and thermal crack resistance, good for general purposes Used in most stands of the finishing mills and in the rear stands of common mills. |
| YGR45 | Good toughness and thermal crack resistance Used in the front stands of finishing mills. |
| YGR55 | Good impact resistance Used in the stands of pre-finishing rolling mils for hot rolling ribbed steel barsand they can be machined with turning and milling |
| YGR60 | Good impact resistance.Used for hot rolling ribbed steel bars and in the first and second stands of pre-finishing rolling mills. |
| YGR40T | With good toughness and shock resistance,used for general high speed wire or common rolling machine,rolling small size deformed bar finish stand |
| YGR45T | With good toughness and shock resistance,used for general high speed wire or common rolling machine,rolling small size deformed bar finish stand |
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