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
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
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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
- 86-411 84174804
- lmm@magnesiacarbonbricklmm.com
- Ganjingzi District, Dalian 116000, China