Fused Bing Crystal Magnesium Oxide FM MgO
group nameFused Magnesia
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Min Order10 metric ton
brand nameCNMGO MgSO4 Manufacturer
modelMgO 95%MIN
payment methodL/C, D/P, Western Union, MoneyGram, T/T, Paypal, cash
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update timeSat, 20 Dec 2025 03:55:08 GMT
Paramtents
MgO Content 95%-99%
Packing 25/50/1250/1300kgs bag
Loading 27mt/20fcl
Appearance Off-white powder
size 200/325mesh
MOQ 1 container
Used as fertilizer? yes
OEM Packing? Accepted
Preshipment inspection? Accepted
Packging & Delivery
Min Order10 metric ton
Briefing
As a main materials in refractory and other industrial usage.
Detailed
Fused Bing Crystal
Magnesium Oxide FM MgO
What is Fused Bing Crystal Magnesium Oxide FM MgO？
Fused Big Crystal Magnesium Oxide (FM MgO), also known as Electro-Fused Magnesia or Fused Magnesia, is an ultra-high purity and density form of magnesium oxide. It is produced by melting high-purity magnesite or lightly calcined magnesia in an electric arc furnace at temperatures exceeding 2800°C. This extreme process results in the growth of large, well-developed periclase crystals, giving the product its name and exceptional physical and chemical properties. It represents the pinnacle of magnesia products for the most demanding high-temperature and high-performance applications.
Core Features of Fused Big Crystal Magnesium Oxide
· Exceptional Purity & High MgO Content: Achieves MgO levels typically ≥97%, with extremely low impurities (SiO₂, CaO, Fe₂O₃, Al₂O₃), ensuring superior performance and chemical inertness.
· Large Crystal Structure: Characterized by large, tightly bonded periclase crystals (often >1000µm), which provide outstanding thermal shock resistance, slag corrosion resistance, and high-temperature volume stability.
· Superior Density & Refractoriness: Possesses a very high bulk density (often >3.50 g/cm³) and an ultra-high melting point (~2852°C), making it an ideal raw material for premium refractory products.
· Excellent Electrical Insulation: High purity and dense structure grant it superior electrical resistivity at elevated temperatures, making it critical for heating element insulation.
Product Description
Product Name: Magnesium Oxide (Fused, Big Crystal Type)
CAS No.: 1309-48-4
Properties: White to pale grey crystalline lumps or powder.
Molecular Formula: MgO
Molecular Weight: 40.30
MgO Content：96% - 99.5% (Customizable based on raw material and process control)
MgO Content：96% - 99.5% (Customizable based on raw material and process control)
Product specification
Fused Bing Crystal | ||||
Item | Unit | FM-97 | FM-98 | FM-99 |
MgO | % ≥ | 97.0 | 98.0 | 99.0 |
SiO₂ | % ≤ | 0.8 | 0.6 | 0.3 |
CaO | % ≤ | 1.2 | 1.0 | 0.8 |
Fe₂O₃ | % ≤ | 0.8 | 0.5 | 0.3 |
Al₂O₃ | % ≤ | 0.2 | 0.1 | 0.1 |
Bulk Density | g/cm³ ≥ | 3.40 | 3.45 | 3.50 |
Crystal Size | mm | 300 - 1500 (Standard lumps), custom powder sizes (40-120 mesh, 180-325 mesh) available. | ||
Application | - | High-grade refractory bricks & masses | Premium refractories, ceramics | Ultra-high performance ceramics, electrical insulation |
Product Display
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fused crystal of emotionsbdo
fused crystal
Application
Fused Big Crystal MgO is the material of choice for extreme conditions and high-value applications due to its unmatched purity and stability.
• Advanced Refractories: The primary application. Used as the core raw material for manufacturing high-performance magnesia-carbon bricks, magnesia-chrome bricks, and monolithic refractories used in steelmaking ladles, cement rotary kilns, and glass furnaces. Its large crystals resist penetration by molten slag and metal.
• Electrical Heating Elements: Serves as the critical insulating and thermal conductive filler in mineral-insulated (MI) heating cables and tubular heating elements (e.g., in water heaters, industrial ovens). Its high electrical resistivity and thermal conductivity are essential.
• High-Tech Ceramics: Used in the production of specialty ceramics for substrates, crucibles, and insulating parts that require extreme thermal and chemical stability.
• Abrasives & Precision Polishing: High-purity fused magnesia powder is used as an effective yet gentle abrasive for precision polishing of semiconductor wafers and optical glass.
Industry Solutions
Construction and Building Materials
refractory materials, lightweight partition walls, sound insulation materials, building formwork.
Agriculture
Magnesium nutrition supplementation, soil acidification remediation, crop photosynthesis Soil structure improvement.
Feed additive
Magnesium supplementation for ruminants, prevention of grass spasms, metabolic regulation, and enhanced palatability of feed.
Metallurgical industry
Iron ore sintering: Sintering activator, permeability optimization, strength enhancement of sintered ore.
Related Products
CNMGO OUR ADVANTAGES
1. More than 10 years' experience in Magnesium products filed.
2. Working with shipping company directly,can get lower sea freight.
3. Grasp industry information timely.
4. Faster working efficiency, better service, and ensure after-sale service.
5. The geographical position is superior,near the mine and the port.
6. Superior raw material.
7.Annual capacity 500,000mts.
8. Quality certificate:lSO, SGS, ClQ,Intertek, CCIC.
9. With rich and professional export experience in container and bulk cargo ship.
10. Provide professional Pre-sale consulting,including product, packaging, transportation,certification and testing etc.
11. Test the quality, weight and packaging of the product before shipment.
12. Prompt reply within 12 hours.
13. Bag customization service.
FACTORY & WORKSHOP
FAQ
What is the key difference between Fused Magnesia (FM) and Dead Burned Magnesia (DBM)?
The fundamental difference lies in the production process and resultant crystal structure. DBM is sintered at high temperatures (1500-2000°C), resulting in smaller crystals. Fused Magnesia is melted in an electric arc furnace (>2800°C), allowing for the growth of very large, direct-bonded crystals. This gives FM superior density, purity, thermal shock resistance, and slag corrosion resistance, making it suitable for more critical and demanding applications than standard DBM.
2. Why is crystal size so important in Fused Magnesia for refractories?
Large crystals are directly linked to performance. In refractory applications, larger periclase crystals have fewer crystal boundaries, which are the weak points where slag penetration and corrosion initiate. Therefore, big crystal fused magnesia significantly enhances the brick's resistance to chemical attack and mechanical erosion from molten steel and slag, leading to dramatically longer service life for furnace linings.
3. As a buyer, why should I choose CNMGO HOLY for Fused Big Crystal MgO?
· Guaranteed Scale & Quality Control: With 4 electric melting furnaces and a dedicated annual capacity of 30,000 tons for large crystal fused magnesium, we control the entire process to ensure batch-to-batch consistency, high purity, and reliable crystal size distribution.
· Technical Application Support: We don't just sell MgO; we provide solutions. Our team understands refractory formulation and can recommend the optimal grade (FM-97, FM-98, FM-99) and grain size for your specific application to maximize cost-effectiveness.
· Proven Global Supplier: Our products are trusted by hundreds of customers and exported to over 50 countries, demonstrating our capability to meet international quality standards and logistical requirements reliably.
Looking for a Premium Refractory or Electrical Material Partner? Contact CNMGO HOLY today for technical data sheets, sample requests, and a quotation tailored to your precise Fused Big Crystal MgO specifications.
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- Nearest port for product export
- Dalian, Qingdao, Tianjin, Huangpu
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- T/T, MoneyGram, Credit Card, PayPal, Westem Union, Cash