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The products of LMM Group have been exported to more than 90 countries, countries & areas in America, Europe, Southeast Asia, the Middle East, Africa, Asia, etc, forming strong and core competitiveness in steelmaking, continuous casting, rolling areas to supply high value-added, green, intelligent and one-stop solution and service to global customers in iron, steel, metallurgical industries, etc.
LMM product segment
Please provide design data for special processing requirements
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 |
As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally.
Our product have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time
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