Brand Properties

ZT-50S

ZT-55S

ZT-60S

Chemical Composition (%)

Al 2 O 3

20-30

20-30

20-30

SiO 2

14-23

13-25

13-25

SiC

45-55

45-60

50-65

Max service temperature (°C)

1200Min.

1200

1200

Bulk density after burnt at 1200x3h°C (g/cm 3 )

≥2.3

≥2.4

≥2.4

Linear changing after burnt at 1200°C×3h (%)

-0.5~ 0.5

0.5~ -0.4

0.5~ -0.4

Compressive/Bending Strength (MPa)

110°C×3h

≥70/≥8

≥70/≥8

≥70/≥8

1200°C×3h

≥100/≥12

≥100/≥15

≥110/≥15

Max grain size of aggregate ( mm)

5-6

5-6

5-6

Water content for construction by weight ( % )

5-6

5-6

5-6

Usage

Preheater

Test standard

YB/T5202-2003

Packing

25kg plastic bag