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Frequently Asked Question

What is the Na2O content of your white aluminum oxide?

The Na2O of our common WFA is below 0.3%.
The Na2O of our low sodium WFA is below 0.2%.
The Na2O of our micro sodium WFA is below 0.1%.

Firstly, We make sure the quality before the goods to be packed, if clients get the item with Substandard products, We have warranty for our clients,we will ship out the new replacements.

Al2O3 alumina is the starting material of aluminium production, both of metallic aluminium and aluminium oxide. It is porous an has a large reactive surface.

The refractive index of fused alumina is approx. 1.76, whereas that of normal glass types is approx. 1.4. The closer the refractive indices are to each other, the more transparent the system (e.g. varnishes).

Generally, we suggest to make shipment by sea which costs less. We also can follow other transportation method you asked.

For 5~25 tons, it takes around 10~15days. 2)For 26~200 tons,20-40days We will try to deliver it with the promise of quality guarantee as soon as possible.

F series more than 600N, K series more than 450N, Φ10mm, Φ12mm lengthened series more than 380N.

It's more than 3.7 g/cm3.

Using isostatic pressing, high temperature sintering into ceramic.

Very stable shrinkage with white color.