Brand

Properties

KT-1

KT-2

GJ-18A

KT-18HS

KT-18H

Chemical Composition (%)

≥98

≥95

≥95

≥95

≥95

SiO₂

≤0.2

≤0.5

≤0.2

≤0.4

≤0.4

Max service temperature (°C)

1850

1800

1800

1800

1800

Bulk density after burnt at 110°C (g/cm³)

≥3.1

≥3.0

≥2.9

≥3.0

≥3.1

Linear changing after burnt at 1500°C×3h (%)

-0.2 ~ 0.6

-0.2 ~ 0.6

-0.2 ~ 0.7

-0.2 ~ -0.3(1100°C)

±0.5

Compressive/Bending Strength (MPa)

110°C×24h

≥20/≥4

≥60/≥7

≥50/≥4

≥60/≥8

≥70/≥7

1100°C×3h

≥50/≥6

≥70/≥8

-

≥70/≥9

≥80/≥10

1500°C×3h

≥60/≥10

≥100/≥15

≥100/≥15

≥120/≥10

≥150/≥15

Max grain size of aggregate ( mm)

5-6

5-6

5-6

3

5-6

Water content for construction by weight ( % )

5-6.5

5-6.5

5-6

5-6

5-6

Usage

High temperature furnace

RH vacuum Refining and Oher high Teperature kilns

RH vacuum Refining Soft carbon black Reaction furnace

Petrochemical

RH Soft carbon black

Test standard

YB/T5202-2003

Packing

25kgs Plastic bag