INDEX

ITEMS

YM23

YM26

YM28

YM30

Classification Temperature, °C

1260

1430

1540

1650

 Density Kg/m3       

520 

780

880

1030 

C.C.Strength, MPa

1.2

1.6

2.1

2.5

Modulus Of Rupture, MPa

0.9

1.4

1.6

2.1

Permanent Linear Change CT-30°C 24h %

0.5

0.4

0.5

0.9

Al2O3,%             

42

40

52 

61 

Fe2O3,%                  

0.7 

0.7 

0.6 

0.5

  Thermal Conductivity W/m·k

800°C

0.18

0.31

0.36

0.41

1200°C

0.35

0.41

0.47

Thermal Shock Resistsrce Cycles

30

30

30

30