99.9% Min High Purity Calcined Alumina Powder for Ceramic and Refractory

• CAS No.: 1344-28-1
• Formula: Al2O3
• EINECS: 215-691-6
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: CA-1
• Classification: Alumina
• Grade Standard: Industrial Grade
• Kind: No Salt Oxide
• Quality: First Class
• Applications: Ceramic Glaze,Polishing,Refractories
• Colour: White
• Purity: 99.9%
• Bd g/cm3: 3.85
• Transport Package: 1.25 Ton Bag
• Specification: AC-30
• Trademark: unique
• Origin: China
• HS Code: 2818200000
• Production Capacity: 2000 Ton/Month
• Package Size: 100.00cm * 100.00cm * 60.00cm
• Package Gross Weight: 1250.000kg

Product Description

 

Product Description

  The calcined alumina of our company is produced by the general international law of Bayer, boron free rotary kiln calcined, in addition to sodium washed by water, greatly improving the product quality, purity and stability, and the bulk density of ceramic products, mohs hardness and ability to withstand voltage, etc.

  Excellent sintering performance,stable linear shrinkage,suitable partice size and narrow particle size distribution. Widely used in refractory and ceramic industries.

 

Specifications

 

Model	Chemical Composition					α-Al2O3	Effective density	Primary grain  size
	Al2O3	SiO2	Fe2O3	Na2O	LOI
	%	%	%	%	%	%	g/cm3	μm
A-C-30	≥99	≤0.1	≤0.04	≤0.5	≤0.2	≥94	≥3.93	4.0±1
A-C-30-A	≥99	≤0.1	≤0.04	≤0.5	≤0.2	≥93	≥3.93	2.5±1

 

Applications

Thermal Interface Materials: thermal silica pad, thermal grease, thermally conductive potting glue, phase change materials
Thermally Conductive Engineering Plastics: LED lamp cover, switch shell,electronic products shell, electrical products heat dissipation parts;
Al-based Copper Clad Laminate: high-power LED circuit substrate, power circuit boards, etc;
Alumina Ceramic Fillers;

Detailed Photos

 

Packaging & Shipping

FAQ

Q1 : How can you control your quality?
A1: For each production processing,we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods.
Q2 : What is your lead time?
A2: It usually needs about 10-15 days after receiving the PO.
Q3 : Do you provide free samples?
A3 : Yes, free samples are available, generally speaking, the buyer shall bear all the delivery cost.
Q4 : What is your payments terms?
A4 : We can accept 50% deposit, 50% balance to be against the BL copy or by LC, or other payment terms.
Q5 : Can we visit your company?
A5 : Yes, for sure, you are welcome to visit our company.
Q6 : What standards do you have?
A6 :Our products meet the standards, such as ASTM,SGS. The third party testing is all available for us.
Mr Han
Free to contact