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Refractory Products

Directly Bonded Magnesia Chrome Bricks


ltems

OR-12

OR-9B
OR-9A
OR-6
OR-4

standard value

standard value
standard value
standard value
standard value
MgO,%
°›60
°›70
°›70
°›75
°›80
Cr2O3,%
°›12
°›9
°›9
°›6
°›4
SiO2,%
°‹3.2
°‹3.0
°‹2.8
°‹2.8
°‹2.5

Apparent porosity(£•)
°‹19
°‹19
°‹19
°‹18
°‹18

Bulk Density g/cm³ 
°›3.0
°›2.98
°›2.98
°›2.95
°›2.93

cold crushing strength(MPa)
°›35
°›40
°›40
°›40
°›40

Refractoriness under load°ś 0.2MPa
°›1580
°›1580
°›1600
°›1600
°›1600

Thermal shock Resistance ,
times
£®1100°ś-Water coolding)
°›4
°›4
°›4
°›4
°›4

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