Physical and chemical properties of inert ceramic balls |
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Element |
Al2O3 % |
60 |
70 |
80 |
90 |
95 |
99 |
Fe2O3 % |
≤0.9 |
≤0.8 |
≤0.6 |
≤0.4 |
≤0.3 |
≤0.1 |
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The remaining components can be determined through negotiation between the supplier and the buyer when necessary. | |||||||
water absorption,% |
3±1,It can also be determined by negotiation between the supplier and the buyer | ||||||
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% |
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Size deviation |
Uniform sphere, the ratio of the largest to smallest diameter of a ceramic sphere does not exceed 1.2 |
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Dimensional tolerance |
≤10mm |
±1.0 |
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11—25mm |
±1.5 |
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26—50mm |
±2.0 |
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≥50mm |
±3.0 |
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Free fall strength |
Lossless rate ≥99% |
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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 |
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Wear rate % |
≤2 |
≤1 |
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acid solubility,% |
≤6 |
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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% |
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Resistant to sudden temperature changes |
Lossless rate≥99% |
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Package |
Iron drum packaging |
Packed in iron drums, sealed with thick PP or PE plastic bags |
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Woven bag packaging |
Available in sturdy and UV-resistant woven bags |
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Note: Bulk density data is for reference only, not as a basis for acceptance. |
99 Filling Ball Water Absorption |
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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) |
Deformation under 0.2mpa pressure is less than 0.6% |
Thermal shock resistance (yb/t376.2-1995) |
1200°C down to 600°C. 10 times without surface cracks |
Reburn line changes (gb/t3997.1-1998) |
1400 ℃ for 12 hours, the maximum value is 0.25%, the average value is less than 0.20% |
Bulk density (gb/t2997-2000) |
3.2-3.50 g/cm3 |
crushing strength |
Meet more than 230 kg/cm2 |
Apparent porosity |
12-18% |
Bulk density |
2.1-2.3g/cm3 |
1)Ordinary packing: polyethylene woven bag with net weight of 25kg, plus pallet
2)Steel drum packaging: 100L steel drum packaging, pallets can be added