XHT-C

XHT-Z

XHT-T

XHT-SG1

Rushing section 

Slag section

Iron melting section

Al₂O₃≥℅

65

67

45

65

C≥℅

8

9

9

8

SIC≥℅

11

4

4

8

High-temperature bending strength at 1400℃≤Mpa 

6

5

2

11

Apparent porosity 

10

10

11

10

Bulk density 

2．78

2．87

2．55

2．78

Cold Crushing strength ≥Mpa 

50

45

40

45