Typical Data Properties
TDM-20
TDM-23
TDM-23HS
TDM-130
TDM-25
TDM-135
TDM-25HS
TDM-25L
TDM-26L
TDM-26
TDM-26HS
TDM-140
TDM-28L
TDM-28
TDM-155
TDM-160
TDM-30
TDM-32
ASTM C155-97 Classification
20/23
23
24
25
26
28
29
30
32
ISO 2245 Classification
125-0.5-L
130-0.65-L
130-0.7-L
135-0.8-L
135-0.9
135-1.1
135-0.6-L
140-0.75-L
140-0.8-L
140-1.0
140-0.9-L
150-0.8-L
150-0.9-L
-
160-0.9-L
160-1.0-L
170-1.25-L
Classification Temperature (°C)
1230
1300
1350
1400
1500
1510
1550
1600
1620
1730
Density, Avg
lb/ft³
36
40
44
50
56
69
38
47
62
54
49
55
64
78
ASTM C134-95
kg/m³
520
580
650
700
800
900
1100
615
750
1000
870
780
880
860
1030
1250
lb/Beq
1.91
2.12
2.38
2.56
2.93
3.30
4.03
2.25
2.75
3.66
3.19
2.86
3.22
3.15
3.77
4.58
Kg/str
0.85
0.94
1.06
1.14
1.30
1.47
1.79
1.00
1.22
1.63
1.42
1.27
1.43
1.40
1.68
2.04
Cold Crushing Strength
lb/in²
175
260
320
360
610
435
334
119.62
363
510
ASTM C133-97
Mpa
1.2
1.8
2.2
2.5
4.0
6.0
4.2
3.0
2.3
3.1
3.5
Kg/cm²
12.2
18.4
22.4
25.5
40.8
61.2
42.8
30.6
23.5
31.61
35.6
Modulus of Rupture
100
145
245
205
450
200
230
220
305
250
0.7
1.0
1.7
1.4
1.6
1.5
2.1
7.1
10.2
17.3
14.3
31.6
16.3
15.3
21.4
18.35
Permanent Linear Change, %
ASTM C210-85
2250°F 1230°C * 24hrs
0.0
2370°F 1300°C * 24hrs
-0.5
2460°F 1350°C * 24hrs
-0.4
2550°F 1400°C * 24hrs
-0.6
2732°F 1500°C * 8hrs
0.46
2750°F 1510°C * 24hrs
-0.9
2822°F 1550°C * 8hrs
-0.38
2912°F 1600°C * 8hrs
-0.48
2950°F 1620°C * 24hrs
-1.3
3150°F 1730°C * 24hrs
Reversible Linear Thermal
Expansion (%) at 1100°C
0.45
0.48
0.50
0.55
0.60
0.65
0.70
Thermal Conductivity, Btu-in/ft²,hr,°F
ASTM C182-88
Mean Temperature °C (°F), W/m-k
200 (392)
1.04/0.15
1.18/0.17
1.25/0.18
1.46/0.21
1.60/0.23
2.02/0.29
400 (752)
1.32/0.19
1.39/0.20
1.67/0.24
1.88/0.27
2.23/0.32
2.44/0.35
2.01/0.30
1.81/0.26
2.72/0.39
3.41/0.49
600 (1112)
1.53/0.22
1.95/0.28
2.09/0.30
2.51/0.36
2.65/0.38
2.30/0.33
1.740.25
2.37/0.34
2.93/0.42
3.48/0.50
800 (1472)
2.79/0.40
2.85/0.41
2.16/0.31
2.30/0.43
3.55/0.51
1000 (1832)
2.58/0.37
3.13/0.45
3.06/0.44
3.07/0.44
3.69/0.53
To convert Btu-in/ft²,hr,°F to kcal-m²,hr,°C multiply by 0.124
Chemical Analysis
Alumina
Al2O3 (%)
50.5
67
70
73
77
Ferric Oxide
Fe3O3 (%)
0.9
0.83
0.80
0.6
0.57
0.5
0.4
Calcium Oxide
CaO (%)
0.27
0.3
0.35
0.38
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