STA ceramic roller provides excellent dimensional precision, sufficient strength in high temperature zones, and excellent corrosion resistance. These characteristics make it very suitable for hearth kilns, kiln core tubes, heat resistance tubes, gas extraction tubes, gas introduction tube, acid resistance parts and many more.
Item | STAGB -70 | STAGB -75 | STAGB -80 | STAGB -85 | STAGB-90 |
Al2O3 % | ≥72 | ≥74 | ≥78 | ≥85 | ≥90 |
Fe2O3 % | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.2 |
Bulk density g/cm3 | 2.4 | 2.6 | 2.8 | 3.4 | 3.5 |
Apparent porosity % | ≤25 | ≤20 | ≤15 | ≤12 | ≤10 |
Water absorption % | ≤12 | ≤10 | ≤7 | ≤6 | ≤5 |
Flexural Strength Mpa | 25°C 50 | 25°C 60 | 25°C 70 | 25°C 80 | 25°C 90 |
1350°C 30 | 1350°C 40 | 1350°C 50 | 1350°C 60 | 1350°C 70 | |
Coefficient of thermal expansion (25-1000°C) *10-6/°C | 6 | ||||
Thermal shock resistance 25-1300°C | Excellent | Excellent | Excellent | Excellent | Excellent |
Working temperature °C | 1200 | 1250 | 1300 | 1350 | 1400 |
Diameter Variation(mm) | +0.2, -0.3 | ||||
Length Variation(mm) | + /-1.5 | ||||
Roundness(mm) | ≤ 0.2 | ||||
STA ceramic roller provides excellent dimensional precision, sufficient strength in high temperature zones, and excellent corrosion resistance. These characteristics make it very suitable for hearth kilns, kiln core tubes, heat resistance tubes, gas extraction tubes, gas introduction tube, acid resistance parts and many more.
Item | STAGB -70 | STAGB -75 | STAGB -80 | STAGB -85 | STAGB-90 |
Al2O3 % | ≥72 | ≥74 | ≥78 | ≥85 | ≥90 |
Fe2O3 % | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.2 |
Bulk density g/cm3 | 2.4 | 2.6 | 2.8 | 3.4 | 3.5 |
Apparent porosity % | ≤25 | ≤20 | ≤15 | ≤12 | ≤10 |
Water absorption % | ≤12 | ≤10 | ≤7 | ≤6 | ≤5 |
Flexural Strength Mpa | 25°C 50 | 25°C 60 | 25°C 70 | 25°C 80 | 25°C 90 |
1350°C 30 | 1350°C 40 | 1350°C 50 | 1350°C 60 | 1350°C 70 | |
Coefficient of thermal expansion (25-1000°C) *10-6/°C | 6 | ||||
Thermal shock resistance 25-1300°C | Excellent | Excellent | Excellent | Excellent | Excellent |
Working temperature °C | 1200 | 1250 | 1300 | 1350 | 1400 |
Diameter Variation(mm) | +0.2, -0.3 | ||||
Length Variation(mm) | + /-1.5 | ||||
Roundness(mm) | ≤ 0.2 | ||||
