Alumina Firebricks Refractory Supplier Sk35 Sk36 Sk37 Sk38 High Alumina Brick

Basic Info.

Shape	Brick
Material	Alumina Block
Raw Material	Bauxite
Color	White,Yellow
Al2O3 Content (%)	35-85%
Application	Furnace Lining
Transport Package	Wooden Pallets
Specification	Standard Size 240*114*65mm
Trademark	KRNC
Origin	Henan, China
HS Code	6902200000
Production Capacity	250000 Tons/Year

Product Description

Alumina FireBricks Refractory Supplier Sk35 Sk36 Sk37 Sk38 High Alumina BrickFire clay brick and high alumina brick are both belonging to Al2O3-SiO2 bricks. They can be divided into standard shapes and special shapes. Standard shapes have dimensions that are conformed by most refractory manufacturers and are generally applicable to kilns or furnaces of the same types. Standard shapes are usually bricks that have a standard dimension of 9 × 4 1⁄2 × 2 1⁄2 inches (230 × 114 × 64 mm) and this dimension is called a "one brick equivalent". There are ranges of standard shapes of different sizes manufactured to produce walls, roofs, arches, tubes, circular apertures, etc. Special shapes are specifically made for specific locations within furnaces and for particular kilns or furnaces.

Item/Grade	Fire Clay Brick
	SK-30	SK-32	SK-34	SK-35
Al2O3% (≥)	30	35	38	45
Fe2O3% (≥)	2.5	2.5	2	2
Refractoriness(SK)	30	32	34	35
Refractoriness under load,0.2MPa, ºC (≥)	1250	1300	1360	1420
Apparent porosity (%)	22-26	20-24	20-22	18-20
Bulk density(g/cm3))	1.9-2.0	1.95-2.1	2.1-2.2	2.15-2.22
Cold crushing strength, MPa (≥)	20	25	30	40

Item/Grade	High Alumina Brick
	SK-36	SK-37	SK-38	SK-40
Al2O3% (≥)	55	65	70	75
Fe2O3% (≥)	2	2	2	2
Refractoriness(SK)	20-23	20-23	20-22	18-20
Refractoriness under load, 0.2MPa, ºC (≥)	1250	1300	1360	1420
Operating temperature (ºC )	1400	1430	1480	1500
Bulk density(g/cm3)	2.23	2.35	2.46	2.58
Cold crushing strength, MPa (≥)	45	50	60	70
Unit weight (KG)	3.8	4.0	4.2	4.4