Physical and chemical indicators

Stabilized zirconia ( white full stability )

White stabilized zirconia ( white semi stable )

ZrO2 + HfO2

≥ 94.5

≥ 95.5

CaO

4.5-5.0

3.5-4.0

Fe2O3

≤ 0.1

≤ 0.1

SiO2

≤ 0.2

≤ 0.2

Al2O3

-

-

Long term use of temperature

2300℃

2300℃

Refractoriness ℃

2500℃

2500℃

Stability

≥ 98

70-80