Light Weight Unshaped Refractory Insulation Corundum-Mullite Castables for Kiln
Light Weight Insulation Castable
Description:
The light weight castables have low density,low thermal conductivity,high strength,good acid resistance and alkali resistance.They are suitable for middle and low temperature furnace linings,Ceiling and mobile cover.Light weight corundum-mullite castables can be mainly used at heating furnaces in metallurgical.
Item | Light corundum porzite castable | Light floating bead ceramisite castable | Light soda proof castable | Super light castable | |||||
Bulk density g/cm3 | 1.0 | 1.3 | 1.2 | 1.0 | 0.8 | 1.5 | 1.7 | 0.45 | 0.55 |
3h Linear change in normal temperature is no more than 1.5% in the experiment temperature ℃ | 1500 | 1450 | 1200 | 1100 | 1000 | 1200 | 1300 | 950 | 1000 |
Cold crushing strength Mpa 110 ℃ | 7.5 | 8 | 7.8 | 6.5 | 7.2 | 35 | 40 | 5.5 | 6.0 |
Cold crushing strength Mpa 1000*3h | 30 | 30 | 12.2 | 11.3 | 12 | 30 | 35 | 6.5 | 7.8 |
Heat conductivity coefficient 350℃ | 0.35 | 0.35 | 0.31 | 0.26 | 0.26 | 0.26 | 0.35 | 0.26 | 0.25 |
Coefficient thermal expansion%1000℃ | 0.55 | 0.65 | 0.86 | 0.75 | 0.60 | 0.40 | 0.40 | 0.20 | 0.30 |
Max working temperature ℃ | 1450 | 1500 | 1350 | 1300 | 1250 | 1300 | 1300 | 980 | 1100 |
AL2O3 % | ≥70 | ≥65 | ≥30 | ≥35 | ≥30 | ≥35 | ≥40 | ≥35 | ≥40 |
SiO2 % | ≤22 | ≤25 | ≤45 | ≤45 | ≤45 | ≤50 | ≤45 | ≤55 | ≤40 |
Competitive Advantage:
1.Best price, make the products competitive in your market
2.Abundant Experience.
3.Strict Quality Control. Meet clients'quality requirement.
4.Large stocks. Guarantee prompt delivery.
5.Professional Packing. Avoid damage and secure the goods in transportation
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