Mullite Refractory Castable for Circulating Fluidized Bed Boiler
The Description:
Corundum refractory castable is a refractory castable prepared by using corundum as aggregate, powder and some bonding agent. It has higher mechanical strength and abrasion resistance than high aluminum refractory castable and mullite refractory castable, but the thermal shock resistance is slightly worse. Mainly used as boiler, blast furnace hot blast furnace, heating furnace, ceramic kiln and other kiln lining material.
The Physical and Chemical Technial Index
| Item |
NGJ-16 |
NGJ-15 |
NGJ-145 |
NGJ-145 |
NGJ-135 |
| Service temperature ºC |
1600 |
1500 |
1450 |
1450 |
1350 |
| Al2O3 % ≥ |
90 |
80 |
75 |
40 |
65 |
| SIC % ≥ |
-- |
-- |
-- |
45 |
-- |
| BD g/cm3 110ºC*24h ≥ |
3.1 |
3 |
2.7 |
2.6 |
2.4 |
| MOR Mpa ≥ |
110ºC*24h |
11 |
10 |
7 |
9 |
6 |
| ºC*3h |
1600/13 |
1500/12 |
1450/8 |
1450/12 |
1350/7 |
| CCS Mpa ≥ |
110ºC*24h |
80 |
70 |
60 |
65 |
55 |
| ºC*3h |
1600/95 |
1500/90 |
1450/80 |
1450/90 |
1350/65 |
| PLC% ºC*3h |
1600-0.5 |
1500-0.5 |
1450-0.5 |
1450-0.58 |
1350-0.5 |
| Thermal conductivity W/m.k |
1.3 |
1.3 |
1.2 |
1.2 |
1.1 |
The Character:
It has higher mechanical strength and abrasion resistance than high aluminum refractory castable and mullite refractory castable, but the thermal shock resistance is slightly worse.
The application:
Mainly used as boiler, blast furnace hot blast furnace, heating furnace, ceramic kiln and other kiln lining material.
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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