Refractory Gravity Castable

Specifications

The alumina, mullite and corundum series gravity refractory castables boast good construction performance and excellent service

The alumina, mullite and corundum series gravity refractory castables boast good construction performance and excellent service performances. The product is mainly used in the difficult construction parts of high-temperature industrial furnace, owing to the good fluidity of the material, it can be well stuffed into the unshaped body to ensure the construction quality. In addition, it can be made into quick gravity baking and anti-explosive castable as per the baking time required by the users.

 

Material     Item                         Brand		High alumina			Mullite		Corundum
		YH-LZ60	YH-LZ 70	YH-LZ 75	YH-MZ60	YH-MZ70	YH-GZ80	YH-GZ90
Al2O3 %   ≥		60	70	75	60	70	80	90
BD g/cm3 ≥	110°C x 24h	2.3	2.5	2.6	2.3	2.5	2.7	2.8
MOR MPa ≥	110°C x 24h	6	7	8	6	8	10	10
	1350°C x 3h	8	--	--	9	---	--	--
	1500°C x 3h	--	10	12	--	12	12	12
CCS MPa ≥	110°C x 24h	30	30	40	30	40	50	60
	1350°C x 3h	40	--	--	45	--	--	--
	1500°C x 3h	--	55	60	--	60	70	75
Linear dimensional change %	1350°C x 3h	±0.5	--	--	±0.5	--	--	--
	1500°C x 3h	--	±0.5	±0.5	--	±0.5	±0.5	±0.5
Max service temperature  °C		1450	1550	1600	1500	1600	1600	1650