Aluminosilicate Mulcoa Mulgrain
Aluminosilicate Mulcoa Mulgrain
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Aluminosilicate is produced from a naturally occurring mineral, calcined mullite, that is precisely sized as either flour or grain. It is available in three alumina contents: 47%, 60% and 70%. The standard alumina content in the investment casting industry is 47%; which provides a very economical and consistent product. These products are low in iron, alkaline and alkaline earth elements.
The M47 8x16 is an extra coarse stucco variant.
In the investment casting industry, the main use of aluminosilicate is in backup slurries and as a backup stucco. A wide variety of grain and flour sizes are available to fit your needs.
Typical Material Properties*
Chemical Analysis (%) |
M47 |
M60 |
M70 |
|||
Typical |
Specifications |
Typical |
Specifications |
Typical |
Specifications |
|
Aluminum Oxide (Al2O3) |
46.8 |
46.0 min |
58.6 |
58.0 min |
68.8 |
68.0 min |
Silicon Dioxide (SiO2) |
50.0 |
|
37.8 |
|
26.8 |
|
Titanium Dioxide (TiO2) |
1.89 |
|
2.21 |
|
2.82 |
|
Ferric Oxide (Fe2O3) |
0.95 |
1.0 max |
1.13 |
1.35 max |
1.22 |
1.50 max |
Calcium Oxide (CaO) |
0.04 |
|
0.06 |
|
0.06 |
|
Magnesium Oxide (MgO) |
0.08 |
|
0.07 |
|
0.08 |
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Sodium Oxide (Na2O) |
0.09 |
|
0.07 |
|
0.07 |
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Potassium Oxide (K2O) |
0.09 |
|
0.04 |
|
0.05 |
|
Phosphorous Pentoxide (P2O5) |
0.09 |
|
0.10 |
|
0.11 |
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Mineralogy |
M47 |
M60 |
M70 |
|||
Typical |
Specifications |
Typical |
Specifications |
Typical |
Specifications |
|
% Mullite |
65 |
|
77 |
|
87 |
|
% Glass |
20 |
|
23 |
|
13 |
|
% Cristobalite |
15 |
|
Tr |
|
|
|
Physical Properties |
M47 |
|
M60 |
|
M70 |
|
Typical |
Specifications |
Typical |
Specifications |
Typical |
Specifications |
|
Bulk Density (ASTM C- 357, gm/cc) |
2.58 |
2.60 min |
2.72 |
2.78 min |
2.81 |
2.80 min |
Apparent Porosity (%) |
4.0 |
|
3.8 |
|
4.2 |
|
PCE |
35 (3245°F) |
|
37 (3308°F) |
|
39 (3390°F) |
|
*These results are based on the testing methods, frequency and procedures of Ransom & Randolph or its approved suppliers. The levels referenced herein are only for general guidance and do not constitute a firm specification.
Grain Size Specifications (% Retained)
USS Sieve Grade |
8 2.36 mm |
12 1.70 mm |
14 1.40 mm |
20 850 μm |
30 600 μm |
40 425 μm |
50 300 μm |
70 212 μm |
100 150 μm |
140 106 μm |
200 75 μm |
270 53 μm |
325 45 μm |
PAN** |
10 x 18 (1) |
0 - 3 |
10 - 25 |
|
60 - 82 |
0 - 15 |
|
|
|
|
|
|
|
|
0 - 5 |
14 x 28 (1) |
|
0 |
1 Max |
30 - 55 |
35 - 45 |
10 - 25 |
5 Max |
|
|
|
|
|
|
1.5 Max |
16 x 30 (1,2) |
|
|
0 - 3 |
65 - 75 |
|
4 Max |
|
|
|
|
|
|
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1 Max |
22S (1,2) |
|
|
TR |
15 - 25 |
32 - 47 |
27 - 37 |
4 - 10 |
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|
|
|
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3 Max |
TR |
35S (1,2) |
|
|
TR |
1 - 5 |
21 - 38 |
40 - 54 |
|
9 - 19 |
|
2 - 8 |
|
|
|
3 Max |
50S (1,2) |
|
|
|
0 |
1 - 9 |
22 - 37 |
26 - 40 |
12 - 22 |
6 - 16 |
1 - 6 |
|
|
|
3 Max |
60S (1,2) |
|
|
|
|
0 |
0 - 5 |
30 - 48 |
30 - 44 |
9 - 22 |
2 - 7 |
|
|
|
3 Max |
20 x 50 (1,2) |
|
|
TR |
0 - 8 |
20 - 50 |
|
50 - 72 |
|
|
|
|
|
2 Max |
TR |
25 x 80 (1,2) |
|
|
|
0 - 5 |
20 Min 30 Avg |
20 Min 30 Avg |
80 - 93 |
7 - 12 |
|
|
|
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3 Max |
50 x 100 (1) |
|
|
|
|
|
TR |
5 - 20 |
|
70 - 86 |
0 - 15 |
3 Max |
|
1 Max |
TR |
60 x 200 (1) |
|
|
|
|
|
|
0 |
0 - 11 |
|
65 - 90 |
5 - 20 |
0 - 6 |
|
3 Max |
200 IC-C (1,2,3) |
|
|
|
|
|
|
|
|
TR |
|
15 - 25 |
|
|
75 - 85 |
325 IC-C (1,2,3) |
|
|
|
|
|
|
|
|
TR |
|
|
|
5 - 15 |
85 - 95 |
**PAN designates the percentage of material passing the last reported screen for each size. Grade available in Al2O3 content (1) 47% (2) 60% (3) 70%.
IMERYS Refractory Minerals has determined test method and provided analysis as noted herein.
As the conditions or methods of use are beyond our control, we do not assume any responsibility and expressly disclaim any liability for any use of this product. Information contained herein is believed to be true and accurate but all statements or suggestions are made without warranty, expressed or implied, regarding accuracy of the information, the hazards connected with the use of the material or the results to be obtained from the use thereof. Compliance with all applicable federal, state, and local regulations remains the responsibility of the user. All potential liability related to the sale and use of this product is limited to the cost of the particular goods sold in their respective transactions.
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