AnShan justhigh refractory high alumina refractory bricks are recogniz

AnShan justhigh refractory's European customers placed orders for our high alumina bricks for the second time in less than half a year. Since our products performed well in the first test, they increased the order quantity for high alumina bricks this time.
The high alumina bricks we supply are made of high-quality rotary kiln GL-70 raw materials in strict accordance with ISO9001. They have a bulk density of more than 3g/cm³, a water absorption rate of less than 5%, a high sintering temperature, and low Na₂O and K₂O contents. At the same time, an appropriate amount of mullite is added to strengthen the matrix, and the high-temperature volume effect of some natural minerals is utilized to achieve the characteristics of high load softening temperature, high high-temperature flexural strength, and low thermal expansion rate.
Performance characteristics: wear resistance, corrosion resistance, peeling resistance, low creep, good thermal shock stability, service life is 1.5 times that of ordinary products;
Main uses: Mainly used in blast furnaces, hot blast stoves, carbon roasting furnaces, carbon calcining furnaces, coke ovens, steel ladle, casting system, boilers, cement kilns, glass kilns and various kiln linings and thermal equipment, etc., suitable for metallurgy, machinery, building materials, casting, ceramics, electricity, petroleum, chemical industry and other industries.

Project		AJ-80	AJ-75	AJ-70	AJ-65	AJ-55	AJ-48
‌（Al₂O₃‌）%	≥	80	75	70	65	55	48
Apparent porosity/%	≤	21	24	24	24	22	22
C.C.S.（MPa）	≥	70	60	55	50	45	40
C.C.S.（MPa）	Xmin	60	50	45	40	35	30
0.2MPa load softening start temperature/℃	≥	1530	1520	1510	1500	1450	1420
Heating permanent line change/%	Xmin	1500℃X2h	1500℃X2h	1450℃X2h	1450℃X2h	1450℃X2h	1450℃X2h

AnShan justhigh refractory high alumina refractory bricks are recognized by European customers