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

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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Advantages and disadvantages of low temperature heating and rolling of bar and wire


Low temperature rolling generally refers to low temperature heating rolling. It is to heat the billet to a temperature lower than the conventional heating temperature and rolling at a temperature lower than the conventional hot rolling temperature. damage.

Saving energy and reducing consumption is always an important task of the iron and steel industry. In steel rolling production, energy saving can be achieved by reducing the reheating temperature of the billet.

Advantages of low temperature heating and rolling:

Reduce heating energy consumption;

Reduce oxidative burn loss and improve yield;

Improve the heating output of the rolling heating furnace and prolong the life of the heating furnace;

Reduced thermal stress fatigue cracks and broken rolls and wear caused by oxide skin of the rolling rolls;

Reduce the depth of the decarburized layer;

Improve the surface quality of the product;

Refine grains and improve product performance.

Disadvantages of low temperature heating and rolling:

The deformation resistance of the rolled material is increased, thereby increasing the rolling force and rolling power;

The order lowers the plasticity of the rolled material when rolling, thereby affecting the bite of the rolled material;

Sometimes it is necessary to reduce the pass reduction and increase the pass.


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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