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High Alumina Castable Refractory Cement Al2O3 80% for 1600-1750℃ Electric Furnace Roof
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High Alumina Castable Refractory Cement Al2O3 80% for 1600-1750℃ Electric Furnace Roof
| MOQ: | 1 |
| Price: | Negotiable |
| Standard Packaging: | Kraft bag |
| Delivery Period: | 7-10Days |
| Payment Method: | L/C,T/T,D/P |
| Supply Capacity: | 10000 Tones/Month |
Detail Information
Place of Origin
China
Brand Name
Leadsun
Certification
ISO/CE
Model Number
LDS-HA75 LDS-HA80 LDS-HA85 LDS-HA95
Bulk Density(g/cm³):
2.5-3.0
Service Temp(degree):
1600-1750
Place Of Origin:
Zibo,Henan,China
Al2O3 Content (%):
50%-80%
Packaging:
25kg/bag
Shape:
Powder
Highlight:
Al2O3 80% High Alumina Castable
,1600-1750℃ Refractory Cement
,Electric Furnace Roof Castable
Product Description
Product Overview
High Alumina Cement (formerly known as bauxite cement) is a hydraulic cementing material produced by grinding clinker with an alumina content of approximately 50%, in which calcium aluminate is the principal constituent. It is also referred to as refractory cement and serves as a key binder for producing low-cement high-alumina castables.
Technical Specifications
| Item | CA-50 | CA-60 | CA-70 | CA-80 | |
|---|---|---|---|---|---|
| Chemical component | Al2O3 /% | 50–60 | 60–68 | 68–77 | ≥77 |
| SiO2 /% | ≤8.0 | ≤5.0 | ≤1.0 | ≤0.5 | |
| Fe2O3 /% | ≤2.5 | ≤2.0 | ≤0.7 | 0.5 | |
| R2O (Na2O + 0.658K2O) /% | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | |
| Rupture strength MPa | 1 day | 5.5 | 2.5 | 5.0 | 4.0 |
| 3 days | 6.5 | 5.0 | 6.0 | 5.0 | |
| 28 days | / | 10.0 | / | / | |
| Compressive strength MPa | 1 day | 40 | 20 | 30 | 25 |
| 3 days | 50 | 45 | 40 | 30 | |
| 28 days | / | 80 | / | / | |
| Setting time (min) | Initial time | ≥30 | ≥60 | ≥30 | ≥30 |
| Final time | ≤360 | ≤1080 | ≤360 | ≤360 | |
Product Applications
Advantages of High Alumina Cement
- High refractoriness, reaching up to 1650℃ ± 50℃.
- High density with low porosity.
- High strength and excellent wear resistance.
- Good thermal exfoliation resistance.
- Good resistance to slag invasion.
- Good plasticity for convenient construction.
- High bonding strength.
- Good thermal shock stability.
Frequently Asked Questions
Q1. Are you a manufacturer?
A: Yes, of course. Our factory is located in Henan.
Q2. Can we visit your company?
A: Sure, you are welcome at any time — seeing is believing.
Q3. What is the MOQ for a trial order?
A: There is no limit. We can offer the best suggestions and solutions according to your specific conditions.
Q4. What are the payment terms?
A: Usually T/T, but L/C, Western Union and other terms are also available.
Q5. How about your company's certification?
A: We hold CE, ISO9001 and test reports, and we can also apply for other necessary certifications.
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