Complaint
High Purity Magnesia Chrome Refractory Magnesium Chromium Brick For Furnace Lining
Magnesia Brick Refractory brick for Steel Furnace is used in the transition zone and firing zone of large dry method cement kilns.
Magnesia Brick is also used in the checker in the glasses furnace, metal-mixer and temperature changed frequently zones in refractory producing furnace.
Features of Magnesia Brick
Magnesia Brick , it is to point to magnesium stone as raw materials, the Israeli magnesium stone as the main crystal phase, MGO style content in 80% ~ 85% or more of the refractory brick. Its products are divided into two categories:
Metallurgical magnesia and magnesia products.
Magnesia brick is the main products of basic brick, high refractoriness, of alkaline slag and iron slag has good resistance, high refractory brick is a kind of important.
Mainly used in open hearth, oxygen converter, electric furnace and non-ferrous metal smelting, etc.
Applications:
1.Iron Steel Industry
Steelmaking furnace lining, ferroalloy furnace, metal mixer furnace lining, converter lining, arc furnace wall and furnace bottom, soaking furnace,
heating furnace bottom.
2.Non-ferrous metallurgical industry
copper,nickel,lead,zinc,tin smelting furnace lining, refined copper reverberatory furnace,ore electric furnace lining
3.Glass Industry
Glass furnace regenerator checker
4.Building Material Industry
Lime kiln,cement kiln
5.Refractory Material Industry
High temperature calcination kiln,shaft kiln and tunnel kiln
| Item | TK-MA80 | TK-MA85 | TK-MA90 |
| MgO % | 85 | 88 | 90 |
| Al2O3 % | 7 | 6.5 | 6.5 |
| SiO2 % | 4 | 2.4 | 1.2 |
| CaO % | 1.5 | 1.3 | 1.2 |
| Fe2O3 % | 1.7 | 1.4 | 1.0 |
| Apparent porosity % | 17 | 17 | 17 |
| Bulk density (g/cm3) | 2.93 | 2.93 | 2.94 |
| Cold crushing strength (MPa) | 50 | 50 | 55 |
| Refractoriness under load (ºC) | 1610 | 1650 | 1700 |
| Thermal shock resistance (times) | 3-6 | 3-6 | 3-6 |
| Item | MZ-97 | MZ-95 | MZ-93 | MZ-91 |
| MgO % | ≥97 | ≥95 | ≥93 | ≥91 |
| SiO2 % | ≤1.0 | ≤2.0 | ≤3.5 | - |
| CaO % | - | ≤2.0 | ≤2.0 | ≤3.0 |
| Apparent porosity/% | ≤16 | ≤16 | ≤18 | ≤18 |
| Cold crushing strength/ Mpa | ≥60 | ≥60 | ≥60 | ≥60 |
| Refractoriness under load, 0.2MPa, °C | ≥1700 | ≥1650 | ≥1620 | ≥1560 |
| Reheating Linear Change(1650 °C,2h) /% | 0~-0.2 | 0~-0.3 | 0~-0.4 | 0~-0.4 |
