lmm@magnesiacarbonbricklmm.com

86 411-84174804

LMM TOTAI offer a complete product and service portfolio for all steelmaking processes.
From basic and non-basic bricks and mixes, slide gate plates, isostatic products and prefab components to special machinery, mechanisms and repair systems.

Carbon Block

Our Production factory professionally engage in research and development, manufacturing and supplying, and international trade of graphite electrode and carbon products, we are the fist UHP manufacturer in china. By continuous development and innovation, now developed the complete process for the carbon production, including calcination, forming, baking, pitch impregnation, graphitizing, machining, as well as the advanced test equipment from China and abroad. The main products series: 250mm-700mm HP/RP Grade and UHP Grade graphite electrode. The annual capacity is 50 thousands MT. The company has passed ISO 9001: 2015 quality management system certification, product quality is stable and reliable.

Super Micropore Carbon Block

It is made of calcined anthracite as main raw materials, with many additive agents, pitch as binder, through forming, baking under high temperature and machining.

It features high therrmal conductivity, good micro porosity and permeability, preventing blast furnace hearth from erosion. Fulfill the hearth requirements of large scale blast furnace.

High Thermal Conduction-Super Micropore Carbon Block

It is made of high temperature elecrical calcined anthracite, artificial graphite with additive agents and pitch through forming, high temperature baking, and machining. 

It features high thermal conductivity, good micro porosity and permeability, lowering the bottom temperature, preventing blast furmace hearth from erosion. It’s used for the upper part of bottom hearth of blast furnace.

High Corrosion Resistance Carbon Block

It is made of high temperature electrical calcined anthracite with additive agents and pitch through forming, high temperature baking, and machining. 

It features excellent resistance to hot corrosion and oxidation resistance index, and has the optimal cofficient of thermal conductivity, which can reduce the furnace body erosion rate of key parts, and effectively prevent the erosion by hot metal penetration.

ItemsRequireUnitSuper Micropore
Carbon Block
High Thermal Conduction-
Super Micropore Carbon Block
High Corrosion Resistance
Carbon Block
GuaranteeTypicalGuaranteeTypicalGuaranteeTypical
Bulk Densityg/cm³1.70 1.72 1.68 1.70 1.85 1.90 
Modulus of compressionMpa36.00 40.00 36.00 40.00 40.00 45.00 
Apparent Porosity%15.00 14.00 18.00 16.00 18.00 16.00 
Oxidation%8.00 7.00 10.00 8.00 8.00 7.00 
PermeabilitymDa1.00 0.80 4.00 1.00   
Average Porosity Radius μm0.10 0.08 0.50 0.40   
Pore Size less than 1 μm%80.00 85.00 80.00 85.00 80.00 85.00 
Anti-alkali Attack  UUUUUU
Iron Erosion%28.00 26.00 28.00 26.00 25.00 22.00 
ThermaI
Conductiviy
Room Temp.W/m·K16.00 17.00 20.00 22.00 16.00 17.00 
600℃20.00 22.00 25.00 27.00 20.00 22.00 

Semi-graphitic Carbon Block

It is made of high temperature electrical calcined anthracite and medium temperature pitch through forming, high tem-perature baking, and final precise machining. 

It features high thermal conductivity and alkaline resistance. It’s used for the bottom of blast furnace.

Micropore Carbon Block

It is made of high temperature electrical calcined anthracite with additive agents and medium temperature pitch through forming, high temperature baking, and precise machining.

It features better micro porosity and permeability, high molten iron erosion resistance. It’s used for bottom, hearth and upper position of taphole of blast furnace.

High Thermal Conduction Carbon Block

It is made of high conduction graphite and pitch through forming, high temperature baking and precise machining. 

It features high thermal conductivity and dense structure and mainly is used as hearth block.

ItemsRequireUnitSemi-graphitic Carbon
 Block
Micropore Carbon
Block
High Thermal Conduction
Carbon Block
GuaranteeTypicalGuaranteeTypicalGuaranteeTypical
Bulk Densityg/cm³1.58 1.60 1.63 1.65 1.60 1.62 
Modulus of compressionMpa32.00 34.00 38.00 40.00 28.00 30.00 
Apparent Porosity%20.00 18.00 16.00 15.00 22.00 20.00 
Oxidation%20.00 18.00 16.00 14.00 20.00 15.00 
PermeabilitymDa50.00 40.00 9.00 8.00   
Average Porosity Radius μm1.25 1.20 0.50 0.40   
Pore Size less than 1 μm%30.00 35.00 70.00 75.00   
Anti-alkali Attack  U/LCU/LCU/LCU/LCU/LCU/LC
Iron Erosion%32.00 30.00 30.00 28.00 32.00 30.00 
ThermaI
Conductiviy
Room Temp.W/m·K6.00 9.00 9.00 10.00 20.00 25.00 
600℃13.00 15.00 14.00 16.00 25.00 30.00 

Comprehensive solution of Refractory for steelmaking

Fill out the form below, and we will be in touch shortly.
Contact Information