yixing xinwei leeshing refractory materials co.,Ltd
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Magnesia refractory Brick Mainly for Steelmaking Oxygen Converter Lining
The magnesia bricks are made of dense dead burned magnesia that makes the bricks in good refractoriness and corrosion-resistance. They are widedly used in checcker chamber of glass tant, lime kiln, non-ferrous metallurgical furnace, open hearth furnace, iron mixer and EAF of steel-making, ferro-alloy furnace, etc.
| Brand Item | MZ-91 | MZ-95 | MZ-97 | MZ-98 |
| MgO % ≥ | 91 | 95 | 97 | 97.5 |
| SiO 2 % ≤ | / | / | / | 0.5 |
| CaO % ≤ | 3 | 1.5 | 1.5 | 1.0 |
| Refractoriness under load 0.2MPa Ta º C ≥ | 1520 | 1650 | 1700 | 1700 |
| Apparent Porosity % ≤ | 20 | 17 | 18 | 17 |
| Cold Crushing Strength (MPa) ≥ | 40 | 45 | 45 | 50 |
| Applications | Cement Rotary Kiln, Lime Shaft Kiln | |||
| Catagory | Direct-Bonded Magnesia-Chrome Brick | Semi-Rebonded Magnesia-Chrome Brick | Magnesia-Chrome Brick | Rebonded Magnesia-Chrome brick |
| MgO% ≥ | 80 | 60 | 65 | 65 |
| Cr2O3% ≥ | 4 | 16 | 8 | 16 |
| SiO2%≤ | 2 | 1.5 | 1.2 | |
| Apparent porosity%≤ | 18 | 17 | 20 | 16 |
| Cold Crushing Strength(CCS)Mpa ≥ | 40 | 40 | 35 | 45 |
| Refractoriness Under Load(RUL)℃ ≥ | 1600 | 1750 | 1620 | 1750 |
Company Profile
China Rare Earth Holdings Co., Ltd. is a large cross-regional company with its headquarter registered in Hong Kong. It is a company listed on the Hong Kong Stock Exchange (name: China Rare Earth, code: 0769). Yixing Xinweilicheng Refractories Co., Ltd. is a wholly-owned subsidiary of China Rare Earth Holdings Co., Ltd. and one of the pillar industries of the holding company. The company covers an area of 360,000 square meters and a building area of 240,000 square meters. It has more than 1,000 employees, of which scientific and technological personnel account for 30% of the total number of employees.
Over the years, the company has closely followed the development pace and trend of the international and domestic refractory material markets, invested heavily in expansion and reconstruction, adjusted the industrial structure, and constantly pursued and surpassed development. With the support and help of many close partners at home and abroad, and the sincere unity and hard work of all employees, the company has become one of the important bases for domestic production of medium and refractory materials.
Company advantage
Commencement Ceremony and Signing Ceremony of Technical Trade Cooperation with Japan Krosaki Harima Corp.
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