Sintered SpinelSS

현재위치:

Description:

SSH is a high quality refractory material produced by compounding alumina and magnesium hydroxide which is sintered in Rotary Kiln of a temperature at about 1,850℃. SSH is formulated as MgAl2O4 and shows excellent anti-slag resistance, thermal shock resistance. These features make SSH a high class refractory material in steel making industry.

Applications:

  • Iron-steel ladle Slag line Refractories
  • Cement kiln sintering zone Refractories​
  • Ceiling Refractories of open hearth furnace

Chemical & Physical Properties:

Item
Grade
Property
 SS70H SS90H SS95H
Spec. Typical Spec. Typical Spec. Typical
Chemical
Composition
(wt. %) 		MgO + Al2O3 98 min 99.20 98 min 99.19 98 min 99.51
Al2O3 74 min 76.10 87-91 89.01 94-97 95.25
MgO 21 min 23.10 9-12 10.18 4.0-6.0 4.26
SiO2 0.40 max 0.20 0.40 max 0.16 0.40 max 0.15
CaO - 0.45 - 0.18 - 0.13
Physical
Properties 		Bulk
Density (g/㎤) 		3.20 min 3.30 3.35 min 3.40 3.55 min 3.63
Apparent
Porosity (%) 		3.0 max 0.34 5.0 max 1.85 5.0 min 1.34
Water
Absorption (%) 		- 0.17 - 0.53 - 0.37

Particle Size Distribution:

Item Unit Specification Typical
Crushed
Size 		6-3 ㎜ ㎜ +6.70 -3.35 +6.70 -3.35
% 10 max 10 max 0.8 3.2
3-1 ㎜ ㎜ +3.35 -1.00 +3.35 -1.00
% 10 max 10 max 0.17 3.93
1-0 ㎜ ㎜ +1.00 -0.25 +1.00 -0.25
% 5 max 30 max 2.46 23.65
14 mesh ㎜ +1.18 -0.30 +1.18 -0.30
% 5 max 30 max 0.40 21.30
Ground
Size 		220 mesh ㎜ +0.075 - +0.075 -
% 5 max - 0.5 -
325 mesh ㎜ +0.045 - +0.045 -
% 5 max - 0.81 -
90-0 ㎛ ㎜ +0.090 d50 +0.090 d50
% 10 max 16-32 ㎛ 4.12 24.1 ㎛
20-0 ㎛ ㎜ +0.020 d50 +0.020 d50
% 7 max 3.5 ㎛ max 0.1 2.32 ㎛