Copper Smelting Reflection Kiln Roof Magnesia Refractory Bricks MgO-Al2O3 Bricks
MgO-Al2O3 bricks for Copper smelting reflection kiln roof magnesia refractory bricks
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.
Details of MgO-Al2O3 bricks for Copper smelting reflection kiln roof
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index item |
magnesia-alumina brick |
magnesia-alumina spinel brick |
Periclase-spinel brick |
high-purity mag-alumina brick |
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MgO% ≥ |
80 |
80 |
80 |
75 |
70 |
82 |
80 |
86 |
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AL2O3% ≥ |
510 |
510 |
815 |
815 |
815 |
510 |
510 |
510 |
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0.2MPa refractoriness under load 0C ≥ |
1600 |
1580 |
1700 |
1650 |
1600 |
1620 |
1600 |
1700 |
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cold crushing strength MPa ≥ |
45 |
40 |
35 |
35 |
35 |
39.2 |
39.2 |
35 |
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apparent porosity % ≤ |
18 |
20 |
17 |
18 |
19 |
18 |
18 |
16 |
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thermal shock resistance (11000C-water) times ≥ |
20 | 15 | 10 | 7 | 5 |
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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
- Founded in the 1984, listed on the Hong Kong Stock Exchange on October 15, 1999 (name: China Rare Earth, code: 0769)
- The company is headquartered in Yixing, with branches in Shanghai and Hong Kong
- Professional manufacturer of Rare Earth and refractories
- The top 3 supplier of refractories in China
- covers an area of 360,000 square meters and a building area of 240,000 square meters.More than 2,000 employees, Scientific and technological personnel account for 30% of the total number of employees.
- Obtained more than 11 patent certificates
- Established a technical cooperation relationship with Japan Krosaki Harima Corp.
- Long-term supply to Japan Nippon Steel, Japan NKK, Kimizu, Aoida and Nisingkou steel Co
Commencement Ceremony and Signing Ceremony of Technical Trade Cooperation with Japan Krosaki Harima Corp.
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