【Product introduction】
Fireclay bricks are mainly made from chamotte, being high pressure pressed and sintered in high temperature. Main minerals compositions are mullite phases. These products are widely used in all parts of furnace lining for middle and small capacity blast furnaces because of their excellent physical and chemical properties in high temperature. It also can be used in lining for other kinds of furnace.
【Main Properties】
Item |
SK-30 |
SK-32 |
SK-34 |
SK-36 |
SK-38 |
AL2O3%(min) |
30-34% |
34-38% |
38-42% |
48-55% |
65-70% |
Fe2O3%(max) |
3.5 |
3.2 |
3.1 |
2.5 |
2.3 |
Refractoriness |
≥1650℃ |
≥1700℃ |
≥1760℃ |
≥1780℃ |
≥1810℃ |
Refractoriness under load,0.2MPa,(℃) |
≥1300 |
≥1330 |
≥1350 |
≥1380 |
≥1400 |
Apparent porosity(%) |
24 |
24 |
23 |
22 |
20 |
Bulk density(g/cm³) |
2.05 |
2.1 |
2.15 |
2.2-2.25 |
2.25-2.35 |
Cold crushing strength(MPa) |
≥30 |
≥35 |
≥35 |
≥45 |
≥50 |
Thermal expansion at 1000℃(%) |
≤0.6 |
≤0.55 |
≤0.55 |
≤0.4 |
≤0.4 |
Package:fumigation pallet |
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Size: Can be customized according to customer requirements |
Our service:
1. Strict QC & Fast delivery.
2. Free samples are available by freight collect.
3. High quality goods, Perfect Pre-sales, and good designing service.
4. Welcome to visit our factory at anytime on site or online .
5. We will update you the production process after placing order by photos or online.
6. We have special after-sales team to solve your problem during using our products.