Industrial / Energy Fluids
XCELTHERM® 315
Economical synthetic thermal oil rated to 550ºF (288ºC) with very high resistance to oxidation as well as high resistance to sludge and fouling.-
Typical Properties
Key Operating Temperatures Maximum Bulk Fluid Operating Temperature 550°F (288°C) Maximum Film Temperature 600°F (316°C) Flash Point (PMCC)(ASTM D93)(minimum) 356°F (180°C) Flash Point (COC)(ASTM D92)(minimum) 347°F (175°C) Normal Boiling Point, 10% fraction 667°F (353°C) Autoignition Temperature (Minimum) 649°F (343°C) Pour Point (Maximum) -76°F (-60°C) Pumpability at 300 cSt (mm2/s) 17°F (-8°C) Physical Properties Composition Radco-engineered alkyl aromatic Odor Bland Appearance Bright, clear yellow Kinematic Viscosity at 40°C (104°F) 21.5 cSt Kinematic Viscosity at 100°C (212°F) 4.4 cSt Average Molecular weight 320 g/mol Moisture Content (maximum) 150 ppm Density at 25°C (77°F) 7.20 lbs/gal (863 kg/m3) Specific Gravity at 25°C/25°C (77°C/77°C) 0.87 Critical Pressure 1.42 MPa (14.0 atm) Critical Temperature 707°F (375°C) Critical Volume 0.069 ft3/lb (4.3 L/kg) Coefficient of thermal expansion at 200°C 0.00052/°F (0.00094/°C) * Data represents typical laboratory samples and are not guaranteed for all samples -
Engineering Properties
Temperature
Viscosity
Density
Enthalpy
Thermal Conductivity
Vapor Pressure
°F
°C
cSt
cP
lb/ft3
kg/m3
BTU/lb-°F
J/g-K
BTU/ft-hr-°F
W/m-K
psia
kg/cm2
-20
-29
1,470
1324
56.22
900.6
0.411
1.72
0.0769
0.1331
0
-18
229
205
55.74
892.8
0.421
1.76
0.0763
0.1320
20
-7
62.0
54.9
55.25
885.1
0.430
1.80
0.0757
0.1309
40
4
24.0
21.1
54.77
877.3
0.440
1.84
0.0750
0.1298
60
16
11.8
10.2
54.29
869.6
0.449
1.88
0.0744
0.1286
0.0007
0.0000
80
27
6.81
5.86
53.80
861.8
0.459
1.92
0.0737
0.1275
0.0010
0.0001
100
38
4.40
3.76
53.32
854.1
0.468
1.96
0.0731
0.1264
0.0014
0.0001
120
49
3.09
2.61
52.83
846.3
0.478
2.00
0.0725
0.1253
0.0020
0.0001
140
60
2.30
1.93
52.35
838.6
0.488
2.04
0.0718
0.1242
0.0028
0.0002
160
71
1.80
1.49
51.87
830.8
0.497
2.08
0.0712
0.1231
0.0039
0.0003
180
82
1.46
1.20
51.38
823.1
0.507
2.12
0.0705
0.1220
0.0055
0.0004
200
93
1.22
0.993
50.90
815.3
0.516
2.16
0.0699
0.1209
0.0078
0.0006
220
104
1.042
0.841
50.41
807.6
0.526
2.20
0.0692
0.1198
0.0111
0.0008
240
116
0.910
0.727
49.93
799.8
0.535
2.24
0.0686
0.1186
0.0157
0.0011
260
127
0.808
0.640
49.45
792.1
0.545
2.28
0.0680
0.1175
0.0222
0.0016
280
138
0.728
0.571
48.96
784.3
0.554
2.32
0.0673
0.1164
0.0314
0.0022
300
149
0.664
0.516
48.48
776.6
0.564
2.36
0.0667
0.1153
0.0444
0.0031
320
160
0.613
0.471
48.00
768.8
0.574
2.40
0.0660
0.1142
0.0628
0.0044
340
171
0.570
0.434
47.51
761.1
0.583
2.44
0.0654
0.1131
0.0889
0.0062
360
182
0.535
0.403
47.03
753.3
0.593
2.48
0.0647
0.1120
0.1257
0.0088
380
193
0.506
0.377
46.54
745.6
0.602
2.52
0.0641
0.1109
0.1777
0.0125
400
204
0.482
0.355
46.06
737.8
0.612
2.56
0.0635
0.1098
0.2514
0.0177
420
216
0.461
0.336
45.58
730.0
0.621
2.60
0.0628
0.1086
0.3555
0.0250
440
227
0.443
0.320
45.09
722.3
0.631
2.64
0.0622
0.1075
0.5029
0.0354
460
238
0.427
0.305
44.61
714.5
0.640
2.68
0.0615
0.1064
0.7112
0.0500
480
249
0.414
0.293
44.12
706.8
0.650
2.72
0.0609
0.1053
1.0059
0.0707
500
260
0.403
0.281
43.64
699.0
0.660
2.76
0.0602
0.1042
1.4227
0.1000
520
271
0.393
0.271
43.16
691.3
0.669
2.80
0.0596
0.1031
2.0122
0.1415
540
282
0.384
0.262
42.67
683.5
0.679
2.84
0.0590
0.1020
2.8460
0.2001
550
288
0.380
0.258
42.43
679.7
0.683
2.86
0.0586
0.1014
3.3846
0.2380
560
293
0.376
0.254
42.19
675.8
0.688
2.88
0.0583
0.1009
4.0252
0.2830
580
304
0.369
0.247
41.70
668.0
0.698
2.92
0.0577
0.0998
5.6930
0.4003
600
316
0.363
0.240
41.22
660.3
0.707
2.96
0.0570
0.0986
8.0518
0.5661
* Data represents typical laboratory samples and are not guaranteed for all samples** Enthalpy basis is liquid crystallizing point of 53.6ºF (12ºC)