Index

Item

High alumina

AL2O3-MgO

Magnesite

GNZY－A

GNZY－AM

GNZY－M

Chemical composition,%

AL2O3≥80

AL2O3+MgO≥80

MgO≥80

bulk densityBD , g/cm3

≥2.75

≥2.75

≥2.75

Compressive strengthCS，MPa

≥60

≥60

≥60

Flexural strengthMOR，MPa

≥8

≥8

≥7

Change rate of reheating linePLC（1500℃×3h），％

－0.5～+1.0

－0.5～+1.0

－0.5～+1.0

Max ,service temp，℃，

≥1790

≥1790

≥1790