STANDARD MATERIAL SPECIFICATION

Definition

≥ 40% Al 2 O 3 (Air Setting)

Quality Code IH

Service Temperature ( ℃ ) Min.

1500

Chemical Analysis

Al 2 O 3 (%) Min.

40

Fe 2 O 3 (%) Max.

1.5

CaO (%)

P 2 O 5 (%) Max.

0.5

Alkalies (%) Max.

3.5

Grain Size (mm)

100% Max.

1

95% Max.

0.5

Bulk Density (kg/m 3 ) Avg. ＞

( After Drying, 110 ℃ as Cast)

1900

Cold Crushing Strength (N/mm 2 ) Min.

(After Drying, 110 ℃ as Cast)

5

Permanent Linear Change (%)

1500 ℃ /4hr

Avg . ＜

2.5

Avg . ＞

-2.5

Mortar Used For: IH-IK Bricks

Insulation Slabs & Board

Note:

Mortar with Improved glueing properties