Andalusite Bricks

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Introduction of Andalusite Bricks

Andalusite bricks have high cold crushing strength, high refractoriness under load, high thermal stability, good creep resistance, and thermal shock resistance. It is an alternative product for high aluminum bricks, used in the professional of the key parts of the furnaces. for anode baking furnaces in the aluminum industry is a kind of neutral refractory material with excellent resistance to acid and alkali corrosion. Refractory andalusite brick is an alternative product for high aluminum bricks.

Characters of Andalusite Bricks

1. High-temperature endurable

2. Good thermal shock resistance

3. High cold crushing strength

4. Good resistance to abrasion and corrosion

5. Good thermal spalling resistance

6. High mechanical strength

7. Good volume stability at high temperature

Packing & Shipping of Andalusite Bricks

1. Strong packing will protect the goods from any possible damage during transit.

2. Solid packing and overall stuffing can prevent packages from vibration and jarring.

3. Strict & standard packing can protect goods from pilferage or rain.

4. Pallet + plastic film + Carton+ fixed band.

5. Pallet + plastic film + fixed band.

6. Pallets: 1*1m, 0.93*0.93m.

7. Gross weight: 1.6~2.0 tons.

8. Packaging according to customer service requirements.

Application of Andalusite Bricks

The andalusite bricks are mainly used in the cooling wall of blast furnaces, chemical, and ceramic industries, the door of the coke oven, or as the lining and checker of hot blast furnaces.

Chemical & Physical Index

Items		Models
Ingredient		XHJAN-70	XHJAN-65	XHJAN-60	XHJAN-55	XHJAN-52
Chemical Composition (%)	Al₂O₃ ≥	70	65	60	55	52
	SiO₂	27	32	37	42	45
	Fe₂O₃	0.5	1	1.2	1.5	1.8
	TiO₂	0.4	0.5	0.5	0.6	0.6
	R₂O	0.4	0.6	0.6	0.6	0.6
Bulk Density (g/cm³)		≥2.65	≥2.60	≥2.55	≥2.50	≥2.47
Apparent Porosity, % ≤		16	17	18	19	20
Cold Compressive Strength, Mpa ≥		55	50	50	40	30
Refractoriness Under Load, ºC ≥		1730	1680	1650	1600	1550
Creep Rate, % ≤(0.2Mpa,20-50h)		0.2(1560ºC)	0.2(1500ºC)	0.2(1450ºC)	0.2(1400ºC)	0.2(1350ºC)
Heating Linear Change, % (1500ºC*4h)		0.1~0.2	0.1~0.2	0.1~0.2	-	-
Heating Linear Change, % (1400ºC*4h)			-	-	0.1~0.2	0.1~0.2