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Zibo Qingxin Chemicals Co., Ltd.

Aluminum Oxide Balls, Industiral Grade Aluminium Oxide, Price Aluminum Oxide Balls manufacturer / supplier in China, offering High Purity Alumina Industrial Aluminum Oxide Balls, Monopotassium Phosphate, 99% MKP, CAS 7778-77-0, High Quality Borax Pentahydrate Manufacturers and so on.

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High Purity Alumina Industrial Aluminum Oxide Balls

FOB Price: US $980 / Ton
Min. Order: 20 Tons
Min. Order FOB Price
20 Tons US $980/ Ton
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Production Capacity: 5000mt in Per Month
Transport Package: 25kg/50kg in Per Bag, or as Your Request
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: aluminum oxide balls
  • Grade Standard: Industrial Grade
  • Quality: First Class
  • Trademark: QX
  • Origin: Shandong, China
  • Classification: Alumina
  • Kind: No Salt Oxide
  • Color: White
  • Specification: CE, RoHS, SGS, GMP, ISO
Product Description

Specifications 
Mainly Usage:
1. Heat treatment furnace and toughened furnace
2. Inner liner tube and heating tube in electric furnace
 
Features: 
1.Great mechanical strength
2.High softening temperature
3.Good resistance to thermal impact
4.Small thermal expansion coefficient 
5.Good chill and abrupt heat properties
6. Resistance to acid and alkali corrosion
 
Application:
Electric appliance industry 
Automotive industry 
Mechanical industry 
Engineer industry

Chemical competent

Al2O3

≥99.5%

SiO2

<0.2%

Fe2O3

<0.1%

Alkaline matter

<0.1%

Density

3.9 g/cm3

Hardness

9 M

Water absorption

<0.1%

Ruptures trength

>2000kg/cm2

Gas tightness

Kept for ten minutes at negative pressure of 1.3Kpa. 
The pressure drop is less than 0.3Kpa.

Thermal tolerance

Insert the pipe into the furnace at a depth of 20mm. 
Heat to 1600ºC and maintain for 30 minutes.

Alkali tolerance

In the Na2CO3 solution of 2N concentration, boil for 
15 hours with the weight loss not greater than 20mg/dm2.

Volume resistance

>9*10(5) Ω·cm/1600ºC

Breakdown voltage

20kv/cm

Expansion coefficient

8*10(-8)

Temperature for use

Long-term: 1600ºC  Short-term: 1800ºC

Chill and abrupt heat

1500ºC~room temperature not cracking thrice.

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