SK36 SK38 Fire Brick , High Alumina Fire Brick Brick

Item/Grade

Fire clay brick

High alumina brick

SK-30

SK-32

SK-34

SK-35

SK-36

SK-37

SK-38

SK-40

AL₂O₃ % (≥)

30

35

38

45

55

65

70

82

Fe₂O₃ % (≤)

2.5

2.5

2.0

2.0

2.0

2.0

2.0

2.0

Refractoriness(SK)

30

32

34

35

36

37

38

40

Refractoriness under load, 0.2MPa, °C (≥)

1250

1350

1370

1420

1450

1480

1530

1600

Apparent porosity (%)

22-26

20-24

20-22

18-20

20-23

20-23

20-22

18-20

Bulk density (g/cm³)

1.9-2.0

1.95-2.1

2.1-2.2

2.15-2.22

2.25-2.4

2.3-2.5

2.4-2.6

2.5-2.7

Cold crushing strength ,MPa (≥)

20

25

30

40

45

50

60

70

Straight type

Arch type

Wedge type

L×W×H (mm)

230×114×65

230×114×75

230×114×32

220×110×60

220×110×50

220×110×40

220×110×30

L×W×H/h (mm)

230×114×65/55

230×114×65/45

230×114×65/59

220×110×65/50

220×110×75/65

220×110×60/40

L×W×H/h (mm)

230×114×65/55

230×114×65/45

220×110×75/65

220×110×60/40

Other sizes according to customer requiremen