Products Description
Usethe high quality synthetic mullite, high purity corundum as the main raw material,adding special additive, via high pressure molding, the high temperature burn becomes , the product has soft, high porosity Hollywood,low thermal shock performance is good, wear-resisting performance is good wait for a characteristic.Can be widely used in steel, no-ferrous metal smelting furnace,bolier and wastes incinerator.
Products Specifications
| Item | ZA-17 | ZA-20 (Zirmul) | ZA-25 (Vista) | ZA-30 | ZA-11 | |
| Chemical composition | Al2O3 | ≥70 | ≥59 | ≥57 | ≥47 | ≥72 |
| ZrO2 | ≥17 | ≥19.5 | ≥25.5 | ≥30 | ≥11 | |
| SiO2 | ≤12 | ≤20 | ≤14.5 | ≤20 | ≤12 | |
| Fe2O3 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.3 | ≤0.5 | |
| Apparent Porosity% | ≤17 | ≤17 | ≤17 | ≤18 | ≤17 | |
| Bulk Density g/cm3 | ≥3.15 | ≥2.95 | ≥3.15 | ≥3.10 | ≥3.1 | |
| Cold Crushing Strength Mpa | ≥90 | ≥100 | ≥120 | ≥100 | ≥90 | |
| 0.1Mpa Refractoriness Under Load T0.6 ℃ | ≥1650 | ≥1650 | ≥1650 | ≥1650 | ≥1630 | |
| Permanent Linear Change On Reheating(%)1500℃X2h | ±0.3 | ±0.3 | ±0.3 | ±0.3 | ±0.3 | |
| 20-1000℃ Thermal Expansion % (x 10-6) | 0-0.6 | 0-0.6 | 0-0.6 | 0-0.6 | 0-0.6 | |
| Thermal Conductivity (Average800℃) W / (M.K) | ≤ 2.19 | ≤ 2.19 | ≤ 2.1 | ≤ 2.1 | ≤ 2.19 | |
| Pyrometric Cone Equivalent ℃ SK | 31 | 31 | 31 | 31 | 31 | |

FAQ:
1. Are you a manufacture or trading company ?
Factory+ trade(mainly factories, at the same time, we operates other related products)
2. Can we visit your factory ?
Sure,welcome at any time, seeing is believing.
3. Is your company accept customization ?
We have own factory and excellent technical team, and we accept OEM service
4. What’s the MOQ of trial order ?
No limit, we can offer the best suggestions and solutions according to your condition.
5. Will your company supply samples ?
Yes, we do. The shipping charges should be undertaken by customer.








