

High quality low price Corundum mullite castable made Electrical furnace top
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High quality low price Corundum mullite castable made Electrical furnace top
EF top is prefabricated with high performance and ultra-low cement castable. It has the characteristics of high strength in cold and hot state, good thermal shock stability, long service life, resistance to steel slag and high temperature airflow erosion, resistance to high temperature arc radiation, resistance to airflow abrasion caused by high-speed dust extraction in the furnace, and is suitable for the triangle area of the furnace cover. For the furnace cover, our company has a complete set of mature solutions. At present, the whole furnace cover with a diameter of 6 meters can be made. It is suitable for ordinary electric furnace, ultra-high power electric furnace, refining furnace and VD furnace.
High quality low price Corundum mullite castable made Electrical furnace top
The specification of our EF top as followings:
Item/Code | / | HT- LG-80 | HT- LG-85 |
Al2O3(%) | / | ≥80 | ≥85 |
Cr2O3(%) | / | ≥1.5 | ≥2.0 |
Bulk Density(g/cm³) | 110℃×24h | ≥2.9 | ≥2.9 |
/ | 1000℃×3h | ≥2.85 | ≥2.85 |
/ | 1500℃×3h | ≥2.85 | ≥2.85 |
Cold rupture strength(MPa) | 110℃×24h | ≥6 | ≥6 |
/ | 1000℃×3h | ≥8 | ≥10 |
/ | 1500℃×3h | ≥15 | ≥15 |
Cold crushing strength(MPa) | 110℃×24h | ≥30 | ≥40 |
/ | 1000℃×3h | ≥50 | ≥60 |
/ | 1500℃×3h | ≥60 | ≥65 |
High quality low price Corundum mullite castable made Electrical furnace top
Our EF top has following characteristics:
1.Reduce air flow wear
2.Reduce gas erosion
3.Reduce arc radiation
4.Reduce thermal shock loss
5.Increase service life
6.Increase safety factor
7.Increase customer's profit
8. large diameter can be spliced
High quality low price Corundum mullite castable made Electrical furnace top
Our EF top usually used on electrical funace, and refining furnace:
Production capacity: Our factory actively response to government environmental protection policy, we designed and built the fully automatic controlled high temperature gas tunnel kiln (1700℃), and got capacity of annual output 70,000 tons of high quality refractory products.




Packing details:
★Bricks: Fumigated wooden pallet with log paperboard covered and stainless steel band strapping, the whole outside is wrapped with thermoplastic film. Or carton packaging.
★Wooden pallet size: usually 92*92cm (standard brick)
★Castable: Ton bag with rain film and 25kg bags inside
★Or according to customer’s requirements




Transportation
★Port of dispatch: Tianjin port; Qingdao port
★Delivery time: According to customer’s demand or two sides negotiate




We provide you
★Timely response: Timely response to your inquiry within 24 hours and provide solution.
★Competitive Price: Make the products competitive in your market.
★Free sample: Free sample are offered, trial order are accepted for quality evaluation.
★Strict quality control: We set Quality Management System, from the raw material to finished products, produce high quality products according to chemical & physical specifications strictly to satisfy customers’ needs.
★Fast delivery time: Within 3-30 days according to your quantity after receiving your advance payment.
★ Professional services: Provide pictures from order to delivery. Inspect report by our country’s designated authority and oversea services if necessary.
We are here for you!




Certification: (ISO 9001:2015)
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