Alpha Calcined Alumina Powder Used in Refractory Material

• CAS No.: 1344-28-1
• Formula: Al2O3
• EINECS: 215-691-6
• Classification: Alumina
• Grade Standard: Industrial Grade
• Kind: Amphoteric Oxide
• Model NO.: AT-325
• Quality: Special Class
• Molecular Weight: 101.96
• True Density: 3.97 g/cm3
• Electrical Conductivity: Nonconductive at Normal Temperature
• Appearance: White Powder
• Partical Size: 4~7μm
• Transport Package: 25kg/PP Woven Bag, 1t/Jumbo Bag
• Specification: 99.6%min
• Trademark: Aotai
• Origin: China
• HS Code: 2818200000
• Production Capacity: 30000tons/Year

Product Description

Product Description

High temperature calcined α-Alumina: the product itself has stable crystal shape and  high temperature resistance. Its products have high mechanical strength,Stable shrinkage, good electrical insulation, wear resistance and corrosion resistance.
Application industry: ceramic color glaze, refractory materials, electronic ceramic products, polishing, heat conduction, etc.
 

Product Parameters

 

Brand Name	Composition %				Effective density	α-AL2O3	L.O.I
	AL2O3	SiO2	Fe2O3	Na2O		%	%
	≥	≤	≤	≤
AT-325	99.6	0.064	0.008	0.46	3.95	92-94	0.03
	99.6	0.062	0.008	0.26	3.95	92-94	0.04
	99.6	0.059	0.005	0.08	3.95	93.5-94.5	0.02
	99.6	0.031	0.008	0.33	3.95	92-93	0.05

 For your Application, you can choose from one of our many standard materials, or work with our responsive sales and research and development teams to customize a material that meets your needs.

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FAQ

FAQ
Q: Are you factory?
A: Yes, we are factory.
Q: How is your quality?
A: We have top grade production equipment and precision measuring instruments and we also  have engineers and technicians carry out quality control.
Q: Can you supply free samples?
A: 1kgs free sample is available, but freight charges will be at your account, The charges will be  return to you or deduct from your order in the future.
Q: What about the payment?
     100% T/T in advance, 30% T/T in advance, the balance 70% against the B/L copy, Irrevocable L/C at sight
Q: The MOQ is?
A: MOQ is usually 1 ton, special products can be coordinuted with each other.
Q: Can I visit your factory?
A: Yes, we welcome you to visit our factory at anytime
Q: How about your delivery time?
A: Usually the shipment is within 15 days after confirming receipt of your payment, some products maybe need longer time.