| Customization: | Available |
|---|---|
| Refractoriness (℃): | Refractoriness> 2000 |
| Shape: | Powder |
|
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Fused magnesia-alumina spinel is a new type of high-purity synthetic refractory raw material, which is made of alumina and high-purity light-burned magnesia as the main raw materials in an electric arc furnace after being melted at a high temperature above 2000 ºC and then cooled. There are mainly MA-65, MA-70 and other models, and various types of fused magnesia-aluminum spinel can also be produced according to customer requirements.
| ITEM | MA-70 | MA-65 | ||
| Grit >0.1mm | FINE ≤0.1mm | Grit >0.1mm | FINE ≤0.1mm | |
| AL2O3%≥ | 70-77 | 70-77 | 63-68 | 63-68 |
| SiO2%≤ | 21-28 | 21-28 | 30-35 | 30-35 |
| Fe2O3%≤ | 0.40 | 0.40 | 0.60 | 0.60 |
| R2O%≤ | 0.30 | 0.5 | 0.5 | 0.5 |
| APPARENT POROS≤ | 5.0 | 4.0 | ||
|
g/cm³
BULK DENSIY≥
|
3.30 | 3.35 | ||
Notice: The specifications in the above table can also be customized according to customer needs.
Fused magnesia-aluminum spinel has the characteristics of high bulk density, good thermal ballast stability and strong corrosion resistance, which can effectively improve the slag resistance, thermal shock resistance, thermal ballast resistance of refractory products, prefabricated parts, and unshaped refractory materials. Stability and high-temperature mechanical properties are suitable for the production of high-grade magnesia-alumina bricks, high-performance magnesia-aluminum castables, large-scale cement kilns, magnesia-aluminum ladle castables, blast furnace tap ditch castables, sliding nozzles, ladle lining bricks, continuous casting slides , ideal raw materials for nozzle bricks and open hearth furnace roof bricks, etc.
We can customize packaging according to customer needs. The commonly used packaging forms are as follows:
25kg/bag , 25Kg/drum , 500kg/Jumbo ,
lined PE water-proof and outer metal or carbon drum ,
The weight and measurement clearly marked on package.
The transportation methods we choose are mainly:
1. Sea transportation
2. Air transportation
3. Land transportation
4. Train transportation
Ningxia Yongruida Carbon Co., Ltd. is a manufacturer integrating production and sales. We have abundant strength and enthusiastic service attitude. We have exported to many countries, such as Europe, Asia, Africa, Australia, South America and so on, and have been well received by customers.
In addition, we have professional R&D and sales teams, and own factories and laboratories. Each batch of our product samples will be inspected by our quality inspector. After a series of tests, our products will be delivered to customers to provide them with quality assurance.Above are the certificates related to our products. We have relevant approval certificates for product export, as well as declarations of conformity to standards.
Our products have quality inspection certificates that meet the standards, and the quality inspection certificates are certified by the China Quality Certification Center.
Q: Are you trading company or manufacturer ?
A: We are factory.So you do not have to worry about quality and price, we can guarantee the best quality and the most reasonable price.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What's your MOQ?
A: Normally, 1000kg. But any trial order, which quantity is less than MOQ, is also warmly welcomed.
Q: What are your advantages?
A: First, high quality and best ex-factory price.
Second, strict management and quality control system.
Third, high-quality service team, providing timely service.
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