High Alumina Castables

High Alumina Castables

The product range includes High Alumina Castables different Alumina content varying from 50% upto 95%. The water requirement of casting is 7 to 10% and have a short curing time. These castables are used in reheating furnaces, steel ladles and as a general purposes repair.

High Alumina Castables

TYPICAL FORMULATIONS OF CASTABLES & BASIC MASS
Chemical Analysis (%)
Product High Alumina Castables
Grades 60% HA 70% HA 90% HA
Al2 O3 (Min.) % 60 70 90
MgO (Max.) %
Fe2 O3 (Max.) %
SiO2 (Max.) %
Cr2O3 %
CaO (Max)% 4 4 3.4
Physical Properties
Product High Alumina Castables
B.D. (gm/cc) Min. 1100C/24 hrs 2.4 2.6 2.3
C.C.S. (Kg./cm2) Min. / 1100C 800 850 700
C.C.S. (Kg./cm2) Min. Drying @8000C / 3 hrs soaking 850 900 800
C.C.S. (Kg./cm2) Min. Drying @11000C / 3 hrs soaking 900 950 900
C.C.S. (Kg./cm2) Min. Drying @15000C / 3 hrs soaking 1000 1000 1000
Thermal Conductivity (k cal/m/hrs0C) 1.2 1.2 1.16
P.L.C. max at 15000C -0.7 ±0.8 ±1
Shelf Life (months) 3 3 3
L.B.D. (gm/cc) Min.
Skull Removal
Grain Size (mm) Max. 5 6 6

Regd. Office

31, Makers Chamber-3,
3rd Floor, Nariman Point
Mumbai-400021
Maharashtra. India

Works

4/5 Industrial Estate,
Nandini Road, Bhilai,
Durg-490 026
Chattisgarh, India

Contact

+91 788 4253 333
+91 788 4253 355
+91 788 4253 357

[email protected]

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