The world No. 1 in crude steel production steel plant, over 70% of the HSS for bar and wire are from us.

YUAN HUI
YUAN HUI
LMM GROUP main products focus on the cold and hot plate & wide strip mill rolls and heavy section mill rolls and big casting & forging pieces.

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Recommended application of grades for carbide roll rings

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Grade

Recommended applications

LMM08R

Maximum hardness, excellent wear resistance in the series. Used in the last 1~2 stands of good high-speed rolling mills for rolling common and hard steel bars.

LMM10R

Higher wear resistance. Mode rate impact resistance in the series. Used in the last 1~2 stands of good high-speed finishing rolling mills for rolling common and hard steel bars.

LMM12R

High wear resistance and corrosion resistance. Used in the last 1~4 stands of finishing mills.

LMM15R

Moderate wear resistance and impact resistance, good for general purpose. Used in the last 1~4 stands or all stands of finishing mills.

LMM18R

Good toughness and thermal crack resistance, good for general purpose. Used in most stands of the finishing mills and the rear stands of common mills.

LMM20R

Best for general purposes. Used in the front stands of good rolling mills and in the rear stands of common rolling mills.

LMM25R

Used in the first and second stands of finishing rolling mills and in the stands of pre-finishing rolling mills. For every stand of rolling lines for tow speed rolling low precision and unstable operations.

LMM30R

Maximum binder content in LMMR series, good toughness and thermal crack resistance. Used in the stands of pre-finishing rolling mills and for rolling rings for hot rolling of ribbed steel.

LMM 32R

With good toughness and impact resistance, used for bar, deformed bar finish stand rolling.

Grade

Recommended applications

LMM06H

It possesses the highest hardness and the best wear-resistance among all the varieties 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.

LMM08H

It possesses better wear-resistance and moderate impact-resistance with the hardness second to LMM06H among all the varieties, thus used at the last two stands of high-speed wire rod finishing mill.

LMM10H

It possesses the moderate wear-resistance and impact resistance, thus used at the last 3~4 stands of high-speed wire rod finishing mills.

LMM15H

Moderate wear resistance and impact resistance, good for general purpose. Used in the last 1~4 stands or all stands of finishing mills

LMM20H

Best for general purpose. Used in the front stands of good rolling mills and in the rear stands of common rolling mills.

LMM25H

Maximum binder content in LMMH series, good toughness and thermal crack resistance. Used in the stands of pre-finishing rolling mills and for roll rings for hot rolling of ribbed steel.

LMM30H

Maximum binder content in LMMH series, good toughness and thermal crack resistance. Used for roll rings for hot rolling of ribbed steel and in the stands of pre-finishing rolling mills.

LMM32H

With good toughness and impact resistance, used for bar, deformed bar finish standing rolling.

Grade

Recommended applications

YGR20

High wear resistance and corrosion resistance. Used in the last 1~2 stands of finishing mills.

YGR25

High wear resistance and corrosion resistance. Used in the last 1~3 stands of finishing mills.

YGR30

Good toughness, wear resistance, corrosion resistance and thermal crack resistance. Used in the middle and rear stands of finishing mills.

YGR40

Good roughness and thermal crack resistance, good for general purpose. Used in the 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 mills for hot rolling ribbed steel bars and 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.

YGH40T

With good toughness and shock resistance, used for preferably high speed wire rolling machine, rolling small size deformed bar finish stand.

YGH45T

With good toughness and shock resistance, used for general high speed wire or common rolling machine, rolling small size deformed bar finish stand

Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.

Always a pre-production sample before mass production;
Always final Inspection before shipment;
During the epidemic, provide remote detection technical support

Tell us a little about your application and we’ll get back to you to finalize a quotation to meet your needs as quickly as possible.

Rolling mill rolls product

Classification by roll material:

Cast iron mill rolls

  • Alloy indefinite chilled cast iron rolls
  • Alloy chilled cast iron rolls
  • Alloy SG ductile cast iron roll
  • Pearlitic ductile cast iron roll
  • Bainite ductile cast iron roll
  • Centrifugal cast iron roll


Cast steel mill rolls   

  • Alloy cast steel rolls
  • Semi-steel roller
  • Graphite steel rolls
  • High-chromium steel roll
  • High-speed steel roll


Forging mill rolls

Sort by position on the rolling mill:

Work rolls
backup rolls

Intermediate roll

Product advantage

The world No. 1 in crude steel production steel plant, over 70% of the HSS for bar and wire are from us.

LMM high-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, and improve the overall efficiency of the factory.
Generally, the amount of steel passing in a single groove (times) is 3 to 5 times that of cast iron rolls.

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We would be happy to help and advise if you have any questions or inquiries.