Refractoriness (℃): | 1580< Refractoriness< 1770 |
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Feature: | Long Time Materials |
Type: | Refractory Material |
Shape: | Square, Circular, Triangular, etc |
Material: | Mullite, Cordierite, High Alumina, etc |
Square: | 40X40X12.5mm, 50X50X12.5mm, 60X60X12.5mm, 70X70X12 |
Customization: |
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Item | Value | Test Method | |
Chemical Composition (%) |
Al2O3 | ≥90% | chemical titration |
SiO2 | ≤8% | gravimetric method |
|
Other | ≤2% | chemical titration | |
Compressive Strength (Mpa) | A axis | ≥20 | universal material testing machine |
B axis | ≥2.5 | ||
C axis | ≥0.18 | ||
Water Absorption (%) | 18.5±2 | gravimetric method |
|
Softening Temperature (°C) | ≥1380 | high-temperature electric resistance furnace |
|
Thermal Coefficient of Expansion (room temperature ~800°C) (cm/cm/°C) |
≤5.7×10-6 | expansion indicator NETZSCH DIL 402 PC |
|
Thermal Shock Resistance (room temperature ~650°C) |
650°C 20 minutes/cycle, five cycles no cracking |
air cooling |
size(mm) | Hole shape | Aperture (mm) | Hole quantity (PCS) |
Cell-opening ratio (%) | Pieces per cube |
100 × 100 × (20) | Square | 2.2 × 2.2 | 33 × 33=1089 | 52.70 | (5000) |
100 × 100 × (20) | Square | 2.5 × 2.5 | 31 × 31=961 | 60.06 | (5000) |
100 × 100 × (20) | Square | 3.0 × 3.0 | 24 × 24=576 | 51.84 | (5000) |
81 × 81 × (12.5) | Square | 1.46 × 1.46 | 44 × 44=1936 | 62.89 | (12193) |
75 × 75 × (15) | Square | 2.2 × 2.2 | 26 × 26=676 | 58.17 | (11852) |
75 × 75 × (15) | Round | Φ 2.5 | 492 | 42.94 | (11852) |
120 × 65 × (20) | Square | 2.2 × 2.2 | 38 × 20=760 | 47.16 | (6410) |
100 × 65 × (20) | Square | 2.2 × 2.2 | 33 × 21=693 | 51.6 | (7692) |
100 × 60 × (12.5) | Square | 2.2 × 2.2 | 33 × 20=660 | 53.29 | (13333) |
100 × 50 × (20) | Square | 1.6 × 1.6 | 50 × 24=1200 | 61.44 | (10000) |
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