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Silicon Nitride Bonded SiC Bricks

Sundar Silicon Nitride Bonded SiC Bricks are characterized with good thermal shock resistance, good alkali corrosion resistance, good slag resistance, high strength and high thermal conductivity, the bricks are mainly used in severe parts of iron-making blast furnace, such as the lower part of stack, belly, bosh and tuyere

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Item

Unit

Data

SiC%

 72

Si3N4 %

21

Fe2O3 %

0.5

Density

g/cm3

2.65-2.70

Apparent porosity %

18

Modulus of Rupture

Mpa

(at ambient temperature)

42

Mpa(1400°C)

45

Compressive strength

MPA

150

thermal conductivity1250°C

W/m.k 

 15-18

acid-proof alkaline

 

Excellent

Size Difference

 0-100mm

±1.0

101-300mm

±1.5

301-500mm

±2.0

501mm above

±0.5%