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)

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