High Purity Calcium Aluminate Refractory Cement CA70
The Description:
Ca-50, 50%≤Al2O3≤60%, referred to as 50 cement, this is the most commonly used refractory cement;
Ca-60, 60%≤Al2O3≤68%, referred to as 60 cement;
Ca-70, 68%≤Al2O3≤77%, referred to as 70 cement;
Ca-80, 77%≤Al2O3, referred to as 80 cement;
Among them, CA-70 and CA-80 cement are generally referred to as pure calcium aluminate cement. And CA-50-G6, CA-50-625, CA50-A600 and other labels indicate a meaning, in popular terms, the aluminum content of about 50%, three days of strength of about 62.5MPa aluminate cement. Similarly, G7/725/A700 indicates aluminate cement with a three-day strength of about 72.5MPa.
The Physical and Chemical Technial Index of High Purity Calcium Aluminate Refractory Cement CA70
| Items |
CA-80E |
CA-85G |
CA-80A |
| Refractoriness ºC |
1780-1820 |
| Chemical composition% |
| Al2O3 ≥ |
77 |
| CaO ≤ |
20 |
| SiO2 ≤ |
0.5 |
| Fe2O3 ≤ |
0.5 |
| Na2O+K2O% ≤ |
0.4 |
| S ≤ |
0.1 |
| Specific density g/cm3 |
3.2-3.3 |
3.2-3.3 |
3.2-3.3 |
| Specific surface area m2/kg |
650 |
650 |
650 |
| Initial setting time minutes |
30 |
30 |
30 |
| Final setting time minutes |
360 |
360 |
360 |
| Rupture strength Mpa |
|
| 6hr |
3.0 |
--- |
--- |
| 24hr |
4.5 |
4.0 |
4.5 |
| 72hr |
5.5 |
5.0 |
5.5 |
| Cold crushing strength Mpa ≥ |
|
| 6hr |
10 |
--- |
--- |
| 24hr |
30 |
25 |
30 |
| 72hr |
40 |
30 |
40 |
| Castable performance |
corundum castable |
Low cement castable |
corundum castable |
Low cement castable |
corundum castable |
Low cement castable |
| Water addition% |
5.2 |
6.8 |
5.2 |
6.8 |
5.2 |
6.8 |
| Flow value mm |
|
| Initial flow value |
200 |
180 |
207 |
180 |
217 |
159 |
| 30minutes |
185 |
176 |
190 |
171 |
195 |
150 |
| 60minutes |
177 |
166 |
180 |
164 |
190 |
151 |
| Cold crushing strength Mpa ≥ |
|
| 24hr room temperature |
15 |
15 |
14 |
15 |
14 |
15 |
| 110ºC dry 24hr |
71 |
86 |
76 |
102 |
67 |
70 |
| 1100ºC heating 5hr |
51 |
119 |
55 |
118 |
47 |
118 |
Product features:
1, High strength, fast coagulation;
2, Anti-reducing atmosphere ability, wide adaptability;
3, The density is large, has a strong anti-corrosion effect;
4, Heat resistance, with high heat resistance.
Company main products and profiles:
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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