Brand

Leak – Proof Castables

WFS-1

WFS-2

Refractoriness ( ℃ )

≥ 1690

≥ 1790

Bulk Density (g/cm 3 )

≥ 2.2

≥ 2.6

Chemical Composition Al 2 O 3 (%)

≥ 45

≥ 70

Bending Strength

(MPa)

110 ℃

After drying at

≥ 30

≥ 50

℃ × 3h

After firing at

1000

≥ 60

1000

≥ 80

℃ × 3h

Linear change rate after firing (%)

1000

± 0.3

1000

± 0.3

Service Temperature ( ℃ )

1300

1500

Characteristics

High strength , well thermal stability , high corrosion resistances leak – proof against to slags and fusef metal

Application

Used as liings , bottoms in electrolytic cells , smelting furnaces