Factory Low Price Aluminum Oxide Ceramic Balls – Alumina Ceramic Filler High Alumina Inert Ball/99% alumina ceramic ball – AoGe

Physical and chemical properties of inert ceramic balls

Element

Al₂O₃ ％

60

70

80

90

95

99

Fe₂O₃ ％

≤0.9

≤0.8

≤0.6

≤0.4

≤0.3

≤0.1

water absorption，％

proportion，kg/m³

2.5-3.0

2.7-3.2

2.9-3.2

≥3.1

≥3.2

≥3.4

Bulk density，kg/m³

1400-1550

1400-1650

1500-1800

1700-1950

1800-1950

≥1900

Dust, crack or break

A single bag is less than 5%

Size deviation

Uniform sphere, the ratio of the largest to smallest diameter of a ceramic sphere does not exceed 1.2

Dimensional tolerance

≤10mm

±1.0

11—25mm

±1.5

26—50mm

±2.0

≥50mm

±3.0

Free fall strength

Lossless rate  ≥99％

Compressive strength

φ3

≥250

≥300

≥350

≥400

≥500

≥500

φ6

≥800

≥1000

≥1000

≥1200

≥1500

≥1500

φ8

≥1500

≥1600

≥1800

≥2000

≥2500

≥2500

φ10

≥2000

≥2500

≥2800

≥3000

≥3500

≥3500

φ13

≥3000

≥3000

≥3500

≥4000

≥5000

≥5000

φ16

≥3500

≥4000

≥4500

≥5000

≥6000

≥7000

φ20

≥6000

≥6000

≥7000

≥8000

≥10000

≥12000

φ25

≥7000

≥7000

≥8000

≥10000

≥15000

≥17000

φ30

≥8000

≥9000

≥10000

≥12000

≥17000

≥19000

φ38

≥10000

≥12000

≥13000

≥15000

≥20000

≥22000

φ50

≥12000

≥14000

≥16000

≥18000

≥22000

≥26000

φ75

≥16000

≥18000

≥20000

≥22000

≥25000

≥30000

50-75

55-75

60-80

≥80

≥82

≥85

Wear rate %

≤2

≤1

acid solubility，％

≤6

Alkalinity，％

≥77

≥85

≥90

≥92

≥95

≥97

Refractoriness，℃

≥400

≥500

≥700

≥1000

≥1000

≥1000

Resistant to sudden pressure difference

Non-destructive rate ≥ 99%, no change in compressive strength and pressure after sudden change is less than 25%

Resistant to sudden temperature changes

Lossless rate≥99%

Package

Packed in iron drums, sealed with thick PP or PE plastic bags

Available in sturdy and UV-resistant woven bags

99 Filling Ball Water Absorption

99 filler

diameter

diameter

roll forming

φ＜25mm

＜5％

Machine press forming

φ＞25mm

＜10％

Al₂O₃

≥99%

SiO₂

≤0.14%

Fe₂O₃

≤0.04%

CaO +MgO

≤0.03%

TiO₂

≤0.06%

Na₂O

≤0.1%

K₂O

≤0.1%

CONDITION

INDEX

load softening (yb/t370-1995)

Thermal shock resistance (yb/t376.2-1995)

Reburn line changes  (gb/t3997.1-1998)

Bulk density   (gb/t2997-2000)

crushing strength

Apparent porosity

Bulk density