lmm@cookiey5.sg-host.com

86 411-84174804

Our MgO-C brick advantage

  • located at “Magnesium city”of China,
    we have material location advantage
  • Japanese technology & management
  • we have magnesia carbon refractories warehouse in Mexico

Magnesia Carbon Brick

Product Name: Magnesia Carbon Brick
Brand: LMM YOTAI
Warranty:
1 year
Sample:
Sample testing is available
Certification:
ISO9001/ISO14001
Payment method:
TT/LC
Shipping method:
sea/land/air
Specifications:
Customized products according to customer drawings

Why Choose us

Raw materials

located at “Magnesium city“of China, we have material location advantage

Equipment

  • set 2100 tons automatic hydraulic press
  • 2 sets 1850C Tunnel Kiln annual production capacity: 80000 tons

Experience

we supplied to Greece, Bulgaria, Ukraine, Mexico etc.. we can also do OEM for you

Technology

Inherets the advanced technology, management experience and quality control from Japanese YOTAl.

Bricks process of production

magnesia carbon brick process

Our production equipment

  • automatic controlling system & complete chemical & physical testing system.
  • Four grinder systems;
  • Two measure systems;
  • Six mixers;
  • Seven friction presses(400-1000ton);
  • One 1000ton automatic shaping line;
  • One hydraulic press (2100 ton);
  • Ten dryers (25m);
  • Two tunnel kilns (1850℃,113m);

Magnesium carbon brick recommended model selection

Magnesia carbon bricks for EAF

  • Application site: MgO-C bricks for EAF side wall

  • Select Model:LY-S-NSA-11OXMA

Especially S-NSA has developed as especially for side wall hot spots in bricks for electric arc furnace. In order to meet variety of needs, YOTAI supplies plenty of variations by replacing grade of raw materials or quantity of carbon, introduced below.

Feature of S-LY

  • Base of carbon content is set as 20% to take advantage of carbon characteristics.
  • Varieties of brands are developed by corporate with different grades of raw materials and carbon contents.
  • High durability is carried out for hot spots by adopting high purity materials and dense construction.
  • Bricks used for except hot spots are took into account of balance and durability and cost by replacing grade of materials.
  • Low carbon type supports for oxidization damage by oxidization slag.

Technical data of side wall refractories:

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 
Stamping materials(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
  • Application site: Eccentric bottom tap hole (E.B.T)

  • Select Model:LY-15SX

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.

LY-MG-15CX LY-MG-15SX LY-ASG-X LY-S-MH
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
C
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
  • Application site: Electrode of furnace bottom

  • Select Model:LY-16BSX

Bland LY-MG-16BSX LY-MG-11BX LY-HPT-B LY-CFC-18RX
Use Electrode of furnace bottom Back-up Sleeve of electrode 
Chemical Composition(%) SiO2 2.5 9
Al2O3 86
MgO 78 86 94
CaO 1
C 16 11
Apparent Porosity(%) 3.5 3 18 18
Bulk Density 2.93 3.07 2.87 2.85
Cold Crushing Strength(MPa) 40 58 70 40

Magnesia carbon bricks for LF

  • MgO-C bricks for the free board  (LY-LD-MG-18XE)

  • MgO-C bricks for the lining of slag line(LY-LD-MG-14XFK)

  • MgO-C bricks for the permanent of slag line (LY-LD-MG-15XE)


Universal use Slag line Free board
LY-LD-MG-15X LY-LD-MG-14XFK LY-LD-MG-18XE
Chemical composition(%) MgO 79 81 78
C 15 14 15
Bulk density 2.96 2.98 2.83
Apparent porosity(%) 4 3.8 4.5
Modulus of rupture(MPa) at  R.T 16 19 15
at 1400℃ 13 14 8
Cold crushing strength(MPa) 40 44 37
our customers worldwide

WHAT OUR CUSTOMERS ARE SAYING

The MgO-C bricks which used in EAF has a good performance in 75 furnaces, we are so satificated with the using performance of the bricks from LMM YOTAI
Ukrainian customers
We improved the bricks formula and specification accoridng to our experience, the final using performance doubled compared with their previous specification.
Egypt A customers
In the ladle we have been using high alumina bricks with a performance of 50 heats. After the improved design of LMM YOTAI engineers, we use magnesia carbon bricks instead of high alumina bricks, and the performance reaches 60 furnaces and is still running.
Egypt B customers
our customers worldwide

Stories with Our Customers

Provide perfect technical support and after-sales service

Service team

Jacky Jiang

Technical engineer

Sherry Zhang

Product manager

Sunny Zhu

Product manager

Crystay Jiang

Technical engineer

Anne Wang

Logistics manager

Contact Us

lmm@cookiey5.sg-host.com

86 411-84174804

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