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DA-Series Calcined α-Al₂O₃ Powder

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DA-Series Calcined α-Al₂O₃ Powder

+8617661815627

sales@da-materials.com

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PRODUCT DETAILS

The DA series Calcined α-Al₂O₃ micro powder is the result of the national "7-5" research project. In 1990, through national identification, the technology reached the international advanced level. Calcined alumina is based on industrial aluminum hydroxide or industrial aluminum oxide as raw materials. Calcined at the appropriate temperature to produce crystalline stable a-alumina products ; Calcined alumina is made from calcined a-alumina by ball grinding. Calcined alumina generally used in shaped refractories such as sliding gate, corundum brick etc. Or with reactive alumina used in unshaped refractories.

When using calcined alumina to produce resin bonded products, its moisture is low and it is easy to mix evenly, high volume stability. When used with reactive alumina or silica powder for unshaped refractories, it can form particle gradation with finer powder to achieve the closest packing, reduce the additive amount of water and porosity, reduce rate of linear deformation and increase the strength.

Physical Properties and Chemical Composition

Item	DA-003N	DA-004	DA-004Z
Al₂O₃（%）	99.7	99.6	99.5
SiO₂（%）	0.10	0.10	0.10
Fe₂O₃（%）	0.03	0.03	0.04
Na₂O（%）	0.05	0.18	0.28
D50(μm)	3.5	4.0	4.5

Packaging and shipping

Di'an New Materials has established a complete quality system and through full participation and full-process quality control, strictly follows the ISO9001 standards from raw materials, production, inspection, etc. The annual production capacity can reach 60,000 tons.

CUSTOMER VISIT

With stable quality, first-class service, and reasonable prices, we sincerely invite domestic and foreign merchants to visit the factory to negotiate favorable products.

Customer visit

APPLICATION AREAS

Application areas

FAQ

How can you control your quality?

For each production processing, have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested,

Are you a manufacture or trader?

We are truly a manufacturer, we not only can provide the high quality products with the best price, but also can offer the best pre-sale service and after-service.

Can I get free samples?

Yes, free samples 1-2 kg. Please advise your contact details. ( Like your company name, address, phone No. etc.) We will arrange sample immediately, you will get it within 5 days.

Why choose Di'an?

$Your order production will be under strict control to ensure the products quality Professional producing process and strict QC team Reasonable price Shipment on time We are experienced in refractory export. We already export refractories to Japan, Korea, India Netherlands, Bangladesh, Sri Lanka, Myanmar, Vietnam and so on.$

Your order production will be under strict control to ensure the products quality
Professional producing process and strict QC team
Reasonable price
Shipment on time

We are experienced in refractory export. We already export refractories to Japan, Korea, India Netherlands, Bangladesh, Sri Lanka, Myanmar, Vietnam and so on.

What's your payment terms?

30% deposit in advance, 70% balance to be paid against the B/L copy.

What's your delivery time?

Production time: 3-7 days after deposit payment received.

DA-Series Calcined α-Al₂O₃ Powder

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