High Modulus of rupture mullite low cement castable

Brand:aa

Product detail:

Products Range:

Zibo HITECH MATERIAL CO., LTD is a specialized manufacturer and supplier of refractory, we have two factories, one is for refractory brick and the other is for refractory castable, precast and shapes ceramic fiber etc.

Typical Applications:
Material for metallurgy, petroleum, chemical and other industrial kilns
Part of refining installation, like ladle cover ,Insert for roof of the kiln  

The advantage of these products:

1.The dosage of cement is low, the content of calcium only accounts for 1/4-1/3 of common refractory castable.
2. Water consumption rate during the construction is almost 1/2 or 1/3 of the common refractory castable, so 

    the low  cement refractory castable has high density and lower porosity.
3. High normal temperature cure property, intensity will be increased after medium temperature and 

    high temperature.Three or five times more than common refractory castable.
4. Good volume stability under high temperature. 

Detailed Index:

Product  Index		Al2O3:65%	Al2O3:70%	Al2O3:75%	Al2O3:80%
Chemical composition	Al2O3 %≥	65	70	75	80
	SiO2 % ≤	25	23	20	15
	CaO % ≤	1.8	1.7	1.7	1.65
Bulk density g/cm3 ≥		2.50	2.50	2.60	2.70
Cold crushing strength Mpa≥	110°C×24h	43	55	55	55
	1100°C×3h	60	63	65	68
	1500°C×3h	80	95	96	98
Modulus of ruputer Mpa ≥	110°C×24h	6.4	8	8	9
	1100°C×3h	8.1	9	9	10
	1500°C×3h	13	13	13	13
Reheating linear change %	1100°C×3h	0~+1.0	0~+1.0	0~+1.0	0~+1.0
	1500°C×3h	0~+1.0	0~+1.0	0~+1.0	0~+1.0
Construction water %		6-8	6-8	6-8	6-8
Max working temperature °C		1650	1650	1650	1700