Products we offer
High alumina castable for tundish
High alumina castable for tundish
| Use | Bland | |||
 |  | The cover of tundish： | high alumina castable | LY-CFC-16T |
| LY-CFC-18T | ||||
 | The castable for the lining : | high alumina castable | LY-CFC-TD-80 | |
 | Bricks for slag dam : | magnesia bricks | LY-TBX-SY-1 | |
| high alumina bricks | LY-TBX-A2 | |||
 | Coating materials : | magnesia coat | LY-TD-C-M7 | |
 | Block for impact zone： | Al2O3-SiC-C block | LY-LD-AGX-T2 | |
 | Nozzle for casting： | zirconia nozzle | LY-YZN | |
 | Well block： | high alumina block | LY-SK35 | |
 | Ramming materials： | SiO2-Al2O3-SiC ramming materials | LY-R-AMC | |
 | Repairing materials by trowelling： | high alumina castable | LY-C-170M | |
 | Patching materials : | high alumina | LY-P-AP60 | |
| LY-P-AP80 |
The used position: for the lining
Select modle: LY-CFC-TD-80
| Brand | LY-CFC-TD-80 | LY-CFC-TD-65 | LY-CFC-TD-60 | ||
 | Chemical composition(%) | Al2O3 | 80 | 65 | 60 |
| SiO2 | 16 | 31 | 36 | ||
| Maximum grain(mm) | 8 | 8 | 8 | ||
| Cold crushing strength(MPa) | 110℃×24h | 40 | 50 | 55 | |
| 1000℃×3h | 70 | 90 | 100 | ||
| 1500℃×3h | 95 | 90 | 100 | ||
| Linear change (%) | 1500℃×3h | -0.1 | -0.1 | -0.1 | |
| 1500℃×3h | 0.3 | 0.7 | 0.8 | ||
| Thermal linear expansion(%) at 1000℃ | 0.6 | 0.5 | 0.5 | ||
| Mixing water(%) | 5.0-6.0 | 6.5-7.5 | 6.0-7.0 | ||
| Quantity required (kg/m2) | 2,850 | 2,500 | 2,400 | ||
The used position: for the cover
Select modle: LY-CFC-16T/LY-CFC-18T
Comparing Characteristics of LY-CFC-16T and LY-CFC-18T
| Characteristics | 『LY-CFC-16T』 | 『LY-CFC-18T』 |
| ・No large shrinkage and expansion ・No bias of expansion and shrinkage in heating and cooling. | Reduce gap of expansion and shrinkage in repeated heating by using chamotte and high alumina aggregates. | Reduce tendency of shrinkage in repeated heating by adding expansible raw material to high alumina aggregates. |
| ・No corrosion under used temperature ・Few formation of low melting point material | Low cement castable contained over 50 ％ alumina. Superior heat resistance. | Low cement castable contained over 80％ alumina. Greater heat resistance than LY-CFC-16T. |
| ・No peeling during operation. | Prevent peeling by adding heat resistance stainless fiber. | Prevent peeling by adding heat resistance stainless fiber. |
| ・Cost ・Quantity reguired | ・Cheaper than 18T. ・Quantity required is few, and unit price is cheap. | ・More expensive than 16T. ・Much quality required |
Evaluation of LY-CFC-16T and LY-CFC-18T
『LY-CFC-16T』
- Tundish cover material for general purpose
- For customers required volume stability
- Basic material to develop new material in order to fulfill customer’s multi needs.
『CFC-18T』
- Recommended in usage condition required more heat resistance than 16T.
- For customers required high corrosion resistane and high heat resistance
Technical Data
| Brand | LY-CFC-16T | LY-CFC-18T | |
| Maximum Service Temperature(℃) | 1600 | 1800 | |
| Chemical Composition(%) | Al2O3 | 56 | 82 |
| SiO2 | 39 | 14 | |
| SiC | 3 | ||
| Maximum grain (mm) | 8 | 8 | |
| Cold Crushing Strength(MPa) | 110℃×24h | 50 | 40 |
| 1500℃×3h | 85 | 78 | |
| Linear Change(%) | 110℃×24h | -0.1 | -0.1 |
| 1500℃×3h | 0.9 | 0.1 | |
| Water Required (%) | 7.0～9.0 | 6.0～8.0 | |
| Quantity Required(kg/m3） | 2400 | 2800 | |
| Feature | ・General purpose ・Used at blast furnace and electric arc furnace | ・High heat resistance ・Used for electric arc furnace | |
- Repairing materials by trowelling
Select modle: LY-C170M - Patching materials
Select modle: LY-P-AP60/LT-P-AP80
Brand LY-P-AP60 LY-P-AP80 LY-C-170M 
Chemical composition(%) Al2O3 60 60 60 SiO2 34 60 60 Cold crushing strength(MPa) 110℃×24h 5 60 60 1000℃×3h 10 60 60 1500℃×3h 25 60 60 Linear change (%) 1000℃×3h – 60 60 1500℃×3h -1.5 60 60
LMM YOTAI PRODUCT
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.
Our Clients Give The Best Feedback
Contact Us
- 86-411 84174804
- lmm@magnesiacarbonbricklmm.com
- Ganjingzi District, Dalian 116000, China
LMM YOTAI established in 2007. Our production technology comes from Japanese Yotai. As an experienced and international player in the refractories industry. We have succeeded in expanding both the breadth of its product range and the depth of its services. From raw material selection, refractory portofio & optimization, installation & services & recycle of used refractories on site to further reduce client’s Opex & Capex in refractory consumption per ton steel output, meanwhile improve product quality of client.
