Heat Transfer Fluids - Synthetic and Thermal Hot Oils
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Typical Properties of XCELTHERM® HT*
XCELTHERM® HT Engineering Properties
(Viscosity, Density, Specific Heat, Thermal Conductivity, Vapor Pressure)
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XCELTHERM® HT Engineering Properties
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Temperature Viscosity Density Specific Heat Thermal
Conductivity

Vapor
Pressure

ºF

ºC

cP

lb/ft3

kg/m3

BTU/lb-ºF

J/g-K

BTU/ft-hr-ºF

W/m-K

psia

kg/cm2

-35 -37.2 1601.800

65.155

 1043.790 0.290 1.213 0.069 0.120 - -
0 -17.8 115.399 64.282 1029.796 0.305 1.278 0.070 0.122 - -
10 -12.2 54.423 64.032 1025.797 0.310 1.296 0.071 0.122 - -
20 -6.7 25.666 63.783 1021.799 0.314 1.315 0.070 0.122 - -
30 -1.1 12.104 63.533 1017.800 0.318 1.333 0.070 0.121 - -
40 4.4 7.604 63.283 1013.802 0.323 1.351 0.070 0.121 - -
50 10.0 6.059 63.034 1009.803 0.327 1.370 0.069 0.120 - -
60 15.6 5.100 62.784 1005.805 0.332 1.388 0.069 0.120 - -
70 21.1 4.305 62.535 1001.806 0.336 1.407 0.069 0.119 - -
80 26.7 3.715 62.285 997.808 0.340 1.425 0.068 0.118 0.2294 0.0161
90 32.2 3.260 62.036 993.809 0.345 1.443 0.068 0.118 0.2530 0.0178
100 37.8 2.871 61.786 989.811 0.349 1.462 0.068 0.117 0.2759 0.0194
110 43.3 2.526 61.536 985.812 0.354 1.480 0.068 0.117 0.3009 0.0212
120 48.9 2.246 61.287 981.814 0.358 1.499 0.067 0.116 0.3282 0.0231
130 54.4 2.015 61.037 977.815 0.362 1.517 0.067 0.116 0.3677 0.0259
140 60.0 1.822 60.788 973.817 0.367 1.535 0.067 0.115 0.4002 0.0281
150 65.6 1.658 60.538 969.818 0.371 1.554 0.066 0.115 0.4356 0.0306
160 71.1 1.518 60.288 965.820 0.376 1.572 0.066 0.114 0.4741 0.0333
170 76.7 1.397 60.039 961.821 0.380 1.591 0.066 0.114 0.5163 0.0363
180 82.2 1.291 59.789 957.823 0.384 1.609 0.065 0.113 0.5625 0.0396
190 87.8 1.198 59.540 953.824 0.389 1.628 0.065 0.113

0.6129

 0.0431
200 93.3 1.116 59.290 949.826 0.393 1.646 0.065 0.112 0.6677 0.0469
210 98.9 1.043 59.040 945.827 0.398 1.664 0.064 0.112 0.7275 0.0512
220 104.4 0.977 58.791 941.829 0.402 1.683 0.064 0.111 0.7927 0.0557
230 110.0 0.918 58.541 937.830 0.406 1.701 0.064 0.111 0.8636 0.0607
240 115.6 0.865 58.292 933.832 0.411 1.720 0.064 0.110 0.9409 0.0662
250 121.1 0.817 58.042 929.833 0.415 1.738 0.063 0.109 1.0252 0.0721
260 126.7 0.773 57.792 925.835 0.420 1.756 0.063 0.109 1.1169 0.0785
270 132.2 0.732 57.543 921.836 0.424 1.775 0.063 0.108 1.2169 0.0856
280 137.8 0.695 57.293 917.838 0.428 1.793 0.062 0.108

1.3259

 0.0932
290 143.3 0.661 57.044 913.839 0.433 1.812 0.062 0.107 1.4445 0.1016
300 148.9 0.630 56.794 909.841 0.437 1.830 0.062 0.107 1.5739 0.1107
310 154.4 0.601 56.544 905.842 0.442 1.848 0.061 0.106 1.7147 0.1206
320 160.0 0.574 56.295 901.844 0.446 1.867 0.061 0.106 1.8683 0.1314
330 165.6

0.549

 56.045 897.845 0.450 1.885 0.061 0.105 2.0355 0.1431
340 171.1 0.526 55.796 893.847 0.455 1.904 0.060 0.105

2.2177

0.1559
350 176.7 0.504 55.546 889.848 0.459 1.922 0.060 0.104 2.4163

0.1699
360 182.2 0.484 55.296 885.850 0.464 1.940 0.060 0.104 2.6326

0.1851
370 187.8 0.465 55.047 881.851 0.468 1.959 0.060 0.103

2.8682

0.2017
380 193.3 0.447 54.797 877.853 0.472 1.977 0.059 0.103

3.1250

0.2197
390 198.9 0.430 54.548 873.854 0.477 1.996 0.059 0.102

3.4047

0.2394
400 204.4 0.414 54.298 869.856 0.481 2.014 0.059 0.102

3.6643

0.2576
410 210.0 0.399 54.049 865.857 0.486 2.033 0.058 0.101

3.9567

0.2782
420 215.6

0.385

 53.799 861.859 0.490 2.051 0.058 0.100

4.2724

0.3004
430 221.1 0.371 53.549 857.860 0.494 2.069 0.058 0.100

4.6133

0.3244
440 226.7 0.359 53.300 853.862 0.499 2.088 0.057 0.099

4.9814

0.3502
450 232.2 0.347 53.050 849.863 0.503 2.106 0.057 0.099

5.3788

0.3782
460 237.8 0.335 52.801 845.865 0.508 2.125 0.057 0.098

5.8080

0.4084
470 243.3 0.325 52.551 841.867 0.512 2.143 0.057 0.098

6.2714

0.4409
480 248.9 0.314 52.301 837.868 0.516 2.161 0.056 0.097

6.7718

0.4761
490 254.4 0.305 52.052 833.870 0.521 2.180 0.056 0.097

7.3121

 0.5141
500 260.0 0.295 51.802 829.871 0.525 2.198 0.056 0.096 7.8955 0.5551
510 265.6 0.286 51.553 825.873 0.530 2.217 0.055 0.096

8.5255

 0.5994
520 271.1 0.278 51.303 821.874 0.534 2.235 0.055 0.095

9.2057

 0.6473
530 276.7 0.270 51.053 817.876 0.538 2.253 0.055 0.095

9.9402

 0.6989
540 282.2 0.262 50.804 813.877 0.543 2.272 0.054 0.094

10.7333

0.7547
550 287.8 0.254 50.554 809.879 0.547 2.290 0.054 0.094

11.5897

 0.8149
560 293.3 0.247 50.305 805.880 0.552 2.309 0.054 0.093

12.5145

 0.8799
570 298.9 0.240 50.055 801.882 0.556 2.327 0.053 0.092

13.5130

 0.9501
580 304.4 0.234 49.805 797.883 0.560 2.346 0.053 0.092

14.6960

 1.0333
590 310.0 0.228 49.556 793.885 0.565 2.364 0.053 0.091

16.1716

 1.1370
600 315.6 0.222 49.306 789.886 0.569 2.382 0.053 0.091

17.9026

 1.2587
610 321.1 0.216 49.057 785.888 0.574 2.401 0.052 0.090

19.8189

 1.3935
620 326.7 0.210 48.807 781.889 0.578 2.419 0.052 0.090

21.9403

 1.5426
630 332.2 0.205 48.557 777.891 0.582 2.438 0.052 0.089

24.2887

1.7077
640 337.8 0.200 48.308 773.892 0.587 2.456 0.051 0.089

26.8886

 1.8905
650 343.3 0.195 48.058 769.894 0.591 2.474 0.051 0.088

29.9720

 2.1073
660 348.9 0.190 47.809 765.895 0.596 2.493 0.051 0.088

32.7366

 2.3017

Vapor pressure values above 540°F (282.2°C) are extrapolated

* Data represents typical laboratory samples and are not guaranteed for all samples.