High Aluminum brick belong the middle refractory material, durable for high pressure,stable chemical character and anti-erosion.  

		Fire ClayRefractories	High   Alumina  Refractories
		SK34	SK35	SK36	SK38
SK(JIS)		34	35	36	38
AP Appearance Porosity %		25	24	23	22
Density		2.1	2.2	2.25	2.35
Mpa		25	33	40	50
linear change of reheat %		0~-0.31400*2hrs	0~-0.21500*2hrs	0~-0.21500*2hrs	0~-0.21500*2hrs
thermal conductivity %		0.55at1000	0.55at1000	0.55at1000	0.50at1000
Refractoryness /T20.2 Mpa		1400	1430	1500	1560
Chemical compoment %	Sio2	54	47	42	27
	AI2O3	40	50	55	70
	Fe2O3	2	2	2	2

High alumina Brick