• Raw Materials for Refractory:Refractory Calcined Alumina with Na2O:0.2 Percent System 1
  • Raw Materials for Refractory:Refractory Calcined Alumina with Na2O:0.2 Percent System 2
  • Raw Materials for Refractory:Refractory Calcined Alumina with Na2O:0.2 Percent System 3
Raw Materials for Refractory:Refractory Calcined Alumina with Na2O:0.2 Percent

Raw Materials for Refractory:Refractory Calcined Alumina with Na2O:0.2 Percent

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Quick Details

·         Place of Origin: Shandong, China

·         Shape: powder

·         Material: Alumina

·         Al2O3:99.2%min

·         SiO2:0.05%max

·         Fe2O3:0.04%max

·         CAO:0.04%max

·         NA2O:0.3%max

·         Refractoriness (Degree):1770°< Refractoriness< 2000°

·         Model Number:Customer's Requirement

·         Brand Name:CMAX

·         Application:Metallurgy and Refractory

·         Product name: Calcined alumina

·         Color: White

·         Size:D50:3-5um/2-3um/1-3um

·         BULK DENSITY:N/A

·         Certificate:ISO9001

·         Usage:Fire Resistance Place

·         Type:Raw Refractory

·       Packaging Details:Bags/As costomer's requirement'

 

 

REFRACTORY CALCINED ALUMINA WITH NA2O:0.2 PERCENT

 REFRACTORY CALCINED ALUMINA WITH NA2O:0.2 PERCENT

 

Quality assurance:

1.On a regular basis or as per your request,we entrust national testing agencies to conduct quality inspections

2. Strictly in accordance with the ISO9001-2008 international quality system standard,we monitor and manage the whole process throughout production,quality testing,and measurement to ensure product quality

 

FAQ:

Q: What kind of payments does your support?
A: T/T, L/C, Cash are accepted.
Q: Do you charge for the samples? 
A: Accordeing to our company policy, the samples are free, you only charge the freight fee. And we will return the freight fee during the next order. 
Q: Can you produce according to customers' design? 
A: Sure, we are professional manufacturer.
Q: Do you have other products?
A: Yes, please check our other products in website.

 

Q: Can anyone tell me what is A-leve fireproof material?
What you say is probably palstic! B-level means the fireproof rating is at B1-level because palstic material doesn't belong to fireproof materials. It only is fire?retardant. When wholesaling all kinds of insulation materials and construction, it need tos look at the names. B1-level refers to the fire endurance rating of the fireproof material, which is determined according to the fire resistance of the material. In addition, different parts of the material have different fire endurance ratings! You can download a "Specifications of Fireproof Design for Buildings" for further information!
Q: A chemical problem with refractory materials
In chemistry, there is never absolute
Q: What materials is silicious thermal insulation board made of?
Refractories that contain more than 93% of the monox are acidic refractory materials which include ordinary silica brick, high-density and high-purity silica brick, silica brick that contains chromium, fused quartz products, unburned brick and siliceous ramming materials. It has good softening temperature under a fixed load and can resist corrosion of acid slag, but will have chemical reaction with alkaline slag. Silicious refractory of industrial value mainly is crystalline quartz, such as α and β quartz, tridymite and cristobalite.
Q: what is the grading standards of external wall thermal insulation materials?
external wall thermal insulation materials are divided according to Fire rating: 1, the combustion performance of insulation materials rates A. inorganic fiber spray coating, glass wool, foam glass, foamed ceramic , rock wool, foam cement, obturator perlite 2, the combustion performance of insulation materials rates B1: Extruded polystyrene board (XPS)after special treatment / polyurethane (PU) after special treatment, phenolic aldehyde, gelatine powder polyphenyl granule.3, combustion performance of insulation material rates B2. Molded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc.
Q: How long can gypsum board endure fire?
Fire endurance refers to the fire-resistent limit of the whole system of light-gauge steel structure coupled with gypsum. It does nor merely refers to gypsum board. Fire endurance of the common gypsum board with the thickness of 9.5mm keeps 1.5 hours. Those gypsum board with the thickness of 12mm has a fire endurance of 3 hours.
Q: What is the difference in the nature between the refractory material and thermal?insulation?material
thermal?insulation?material is a material which has a strong impedance to the heat flow. the nature of the material requires that the material can isolate the delivery of thermal, and the low heat conductivity coefficient and expansion coefficient of the non-metal material.refractory is good in heat resisitance and chamical erosion but not high temperature resistance. Requirements on nature is still in high temperature.
Q: Who knows what kind of fire prevention materials are there?
Plant use general steel structure more often without too much modification. If there is a need for modification, boards which can meet the requirements of fireproof are suitable, such as gypsum boards and aluminium sheets. As for coating, it is favorable to use coating that has fine powder, high density and better sealing. Hardening agent mainly depends on the specific requirements.
Q: Which one is the best refractory material?
Resin bonded refractory is mainly abot aluminum magnesium carbon, and carbonaceous etc. Thermoplastic resins need to add the coagulant (Uto), ageing mixture for a period of time, so the production cycle is long. Hot hard resin is relatively not so complex, but it’s not as good as thermoplastic resins in thermoplastic binding.
Q: how to classify the fireproofing material levels A1 A2 B1?
their classification is shown specifically in Fireproof? Specification of Building Interior Decoration?Design GB 50222-95 appendix A, flammability,inflammability materials, flame retardency, noninflammability: combustion performance of A, B3, B2, B1 materials are divided into
Q: On the problem of making refractory materials
Refractories mainly depend on their high melting point characteristics. The refractory market is mainly Magnesium Oxide material.

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