Low Cement Castable Mullite Refractory Castable
The Description:
Low-cement mullite and corundum refractory castable is a kind of special refractory material, which is used in rolling steel heating furnace, water cooling pipe, burner brick, tundish slag barrier weir, medium and small blast furnace iron ditch and electric furnace cover and other thermal equipment. The castable uses sintered or fused mullite, brown corundum, bauxite-based corundum and white corundum as refractory aggregate powder, and sometimes also uses special grade bauxite clinker powder. The ultrafine powder was mixed with xAl2O3 and silica fume, and aluminate cement was used as binder and dispersant was added.
The Physical and Chemical Technial Index of Low Castable Mullite Refractory Castable
| Brand Items |
High Alumina |
Mulllite |
Corundum |
| KYSL-16C |
KYSL-16M |
KYSL-17C |
| Al2O3 % ≥ |
65 |
70 |
85 |
| Bulk Density kg/m3 |
110ºC*24h |
2.5 |
2.6 |
2.8 |
| MOR Mpa ≥ |
110ºC*24h |
10 |
11 |
12 |
| 1400ºC*3h |
12 |
13 |
14 |
| CCS Mpa ≥ |
110ºC*24h |
80 |
90 |
100 |
| 1400ºC*3h |
90 |
90 |
100 |
| P.L.C% |
1400ºC*3h |
±0.5 |
±0.5 |
±0.5 |
| Recommended application part |
Rear ourlet,kiln hood,rear end of cooler |
grate cooler,kiln Bood,tertiary duct |
front kilneye of large cement kiln,coal burner |
The feature:
The low-cement mullite and corundum refractory castable has the following characteristics and applications:
- Fire resistance: Refractory aggregates such as mullite and corundum have high fire resistance and erosion resistance, and can withstand high temperature and chemical corrosion.
- Dense structure: Due to the use of ultrafine powder and aluminate cement, the structure of the castable is more dense, with lower porosity and water absorption.
- Strength improvement: reasonable ratio and the use of appropriate ultrafine powder and aluminate cement can improve the strength and wear resistance of castable.
- Wide range of applications: low cement mullite and corundum refractory castables are suitable for a variety of thermal equipment, such as rolling steel heating furnace, water cooling pipe, burner brick, tundish slag weir, small and medium blast furnace iron ditch and electric furnace cover
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
Certificates
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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