Fire Clay Refractory Brick for Wood Burning Stove Fire Pizza Oven

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, °C (≥)

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