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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.

Refractories for EAF bottom tap hole

Refractories for EAF bottom tap hole

Use Brand
Sleeve of electrode: precast block LY-CFC-18RX
Side wall bricks:  MgO-C bricks LY-S-NSA-110XMA
Permanent bricks: magnesia bricks LY-HPT-B 
Stamp castables(dry setting):     magnesia-dolomite LY-S-MD-DV 
Eccentric bottom tap hole     Terminal block:Al2O3-SiC-C bricks LY-ASG-X
    Tapping tube: MgO-C bricks  LY-MG-15SX 
Electrode of furnace bottom:    MgO-C bricks  LY-MG-16BSX 
Gunning repairing material:       magnesia-dolomite materials LY-G-HD100

Eccentric bottom tapping has been applied as a latest technology. High resistances to corrosion, spalling, oxidation are required for refractories for E.B.T. YOTAI provides the best material for each sections.

Tapping tube Setting brick Terminal block Sealing stamp material
Chemical Composition(%) SiO2 76 76 2 5
Al2O3 16 14 70 90
MgO 10
SiC 12
Apparent Porosity (%) 5 6 7
Bulk Density 2.92 2.9 2.9
Cold Crushing Strength(MPa) 42 40 50
Grain composition(%) 1.18≦ 42
0.09>  40

Comprehensive solution of Refractory for steelmaking

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