Brand

A-13

A-17

A-22

B-22

Density,                          Kg/m³

≤135

≤170

≤220

≤220

Bending strength,         Mpa

≥0.2

≥0.3

≥0.35

≥0.3

Compressive Strength, Mpa

≥0.3

≥0.4

≥0.5

≥0.5

Max. Service temp.,       °C

1000

1000

1000

650

Thermal conductivity, W/m.k

(Average temp. 70°C)

0.042

0.047

0.053

0.060

Linear shrinkage,          %

(1000°CX3hr)

≤2.0

≤2.0

≤2.0

≤2.0

Moisture content,          %

≤6.0

≤6.0

≤6.0

≤7.5