• Yangzhuang Industrial Zone, Zhenwu Town, Jiangdu District, Yangzhou, Jiangsu Province, P.R. China
  • 86-(0)514-86236087
  • iris.pan@jsjxgf.com

Spinel micropowder

Short Description:

Micropowder of pre-synthetic magnesium aluminate spinel is of a new type of matrix material for shaped and monolithic refractories. It enables the products to have good resistances to corrosion, spalling and thermal shock resistance together with high hot strengths at high temperatures. It’s good reactivity and sinterability at high temperatures can efficiently improve castables’ packing density and workability, lower sintering temperature for fired products, while enhancing the bonding between grain and matrix to increase compactness and spalling resistance.


Product Detail

Product Tags

Properties

Unit

Specifications

SM745

SM720

HS705

HS702

SM945

SM920

HS905

HS902

Al2O3

 

75-79

75-79

75-79

75-79

89-92

89-92

89-92

89-92

MgO

 

20-23

20-23

20-23

20-23

8-10

8-10

8-10

8-10

Na2O

%

≤0.35

≤0.35

≤0.30

≤0.30

≤0.30

≤0.30

≤0.25

≤0.25

Fe2O3

%

≤0.25

≤0.25

≤0.20

≤0.20

≤0.15

≤0.15

≤0.10

≤0.10

SiO2

%

≤0.35

≤0.35

≤0.30

≤0.30

≤0.20

≤0.20

≤0.15

≤0.15

CaO

%

≤0.40

≤0.40

≤0.30

≤0.30

≤0.20

≤0.20

≤0.15

≤0.15

+45μm

%

≤10

 

 

 

≤10

 

 

 

+20μm

%

 

≤10

 

 

 

≤10

 

 

(BET)Specific surface area

m2/g

 

 

1-3

2-4

 

 

1-3

2-4

D50 Cilas

μm

≤20.0

≤10.0

≤6.0

≤3.0

≤20.0

≤10.0

≤6.0

≤3.0

D90 Cilas

μm

 

 

≤15.0

≤9.0

 

 

≤15.0

≤9.0


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