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# Ethylene - Thermal Conductivity vs. Temperature and Pressure

## Online calculator, figures and table showing thermal conductivity of ethylene, also called ethene or acetene, C2H4, at varying temperature and pressure - Imperial and SI Units.

Thermal conductivity is a material property that describes ability to conduct heat. Thermal conductivity can be defined as

"the quantity of heat transmitted through a unit thickness of a material - in a direction normal to a surface of unit area - due to a unit temperature gradient under steady state conditions"

The SI unit used for thermal conductivity is [W/m K], while a common Imperial unit is [Btu/h ft °F].

Thermal conductivity unit converter

The thermal conductivity of ethylene depends on temperature and pressure as shown in the figures and table below.

Ethylene phase diagram

### Online Ethylene Thermal Conductivity Calculator

The calculator below can be used to estimate the thermal conductivity of ethylene at given temperature and atmospheric pressure.

The output thermal conductivity is given as mW/(m K), Btu(IT)/(h ft °F), (Btu(IT) in)/(h ft 2 °F) and kcal(IT)/(h m K).

Choose the actual unit of temperature:

See also other properties of ethylene at varying temperature and pressure : Density and Specific Weight , Dynamic and kinematic viscosity and Specific heat (heat capacity) ,  and Thermophysical properties at standard conditions ,
as well as thermal conductivity o f air , ammonia , butane , carbon dioxide , ethane , hydrogen , methane , nitrogen , propane and water . For thermal conductivity of construction materials, see related documents at the bottom of the page.

Thermal conductivity of ethylene as function of temperature, given as °C and °F, at atmospheric pressure:

Thermal conductivity of ethylene as function of temperature, given as °C and °F, and pressure:

Thermal conductivity of ethylene at gas-liquid equilibrium pressure and varying temperature, given as °C and °F:

Thermal conductivity of ethylene at given temperatures and pressure, SI and Imperial units:

For full table with Thermal Conductivity - rotate the screen!

 State Temperature Pressure Thermal conductivity [K] [°C] [°F] [bara] [psia] [mW/m K] [kcal(IT)/(h m K)] [Btu(IT)/(h ft °F)] [(Btu(IT) in)/(h ft 2 °F)] Liquid at equilibrium 103.99 -169.16 -272.49 1.22E-03 0.0177 270.7 0.2328 0.1564 1.877 105 -168 -271 1.46E-03 0.0211 269.3 0.2316 0.1556 1.867 115 -158 -253 6.97E-03 0.101 255.6 0.2198 0.1477 1.772 125 -148 -235 0.0253 0.366 242.1 0.2082 0.1399 1.679 135 -138 -217 0.0739 1.07 228.8 0.1967 0.1322 1.586 145 -128 -199 0.183 2.66 216.0 0.1857 0.1248 1.498 155 -118 -181 0.398 5.77 203.5 0.1750 0.1176 1.411 165 -108 -163 0.777 11.3 191.5 0.1647 0.1106 1.328 175 -98.2 -145 1.39 20.2 180.1 0.1549 0.1041 1.249 185 -88.2 -127 2.33 33.9 169.2 0.1455 0.09776 1.173 195 -78.2 -109 3.69 53.5 158.8 0.1365 0.09175 1.101 205 -68.2 -90.7 5.56 80.7 148.8 0.1279 0.08598 1.032 215 -58.2 -72.7 8.05 117 139.2 0.1197 0.08043 0.9651 225 -48.2 -54.7 11.3 164 129.8 0.1116 0.07500 0.9000 235 -38.2 -36.7 15.3 223 120.6 0.1037 0.06968 0.8362 245 -28.2 -18.7 20.4 296 111.5 0.09587 0.06442 0.7731 255 -18.2 -0.7 26.5 384 102.1 0.08779 0.05899 0.7079 265 -8.1 17.3 33.9 492 92.17 0.07925 0.05325 0.6391 275 1.9 35.3 42.8 620 81.58 0.07015 0.04714 0.5656 Gas at equilibrium 103.99 -169.16 -272.49 1.22E-03 0.0177 6.801 5.85E-03 3.93E-03 0.04715 105 -168 -271 1.46E-03 0.0211 6.739 5.79E-03 3.89E-03 0.04672 115 -158 -253 6.97E-03 0.101 6.622 5.69E-03 3.83E-03 0.04591 125 -148 -235 0.0253 0.366 7.012 6.03E-03 4.05E-03 0.04862 135 -138 -217 0.0739 1.07 7.585 6.52E-03 4.38E-03 0.05259 145 -128 -199 0.183 2.66 8.201 7.05E-03 4.74E-03 0.05686 155 -118 -181 0.398 5.77 8.813 7.58E-03 5.09E-03 0.06110 165 -108 -163 0.777 11.3 9.417 8.10E-03 5.44E-03 0.06529 175 -98.2 -145 1.39 20.2 10.04 8.63E-03 5.80E-03 0.06961 185 -88.2 -127 2.33 33.9 10.70 9.20E-03 6.18E-03 0.07419 195 -78.2 -109 3.69 53.5 11.45 9.85E-03 6.62E-03 0.07939 205 -68.2 -90.7 5.56 80.7 12.31 0.01058 7.11E-03 0.08535 215 -58.2 -72.7 8.05 117 13.35 0.01148 7.71E-03 0.09256 225 -48.2 -54.7 11.3 164 14.61 0.01256 8.44E-03 0.1013 235 -38.2 -36.7 15.3 223 16.19 0.01392 9.35E-03 0.1123 245 -28.2 -18.7 20.4 296 18.25 0.01569 0.01054 0.1265 255 -18.2 -0.7 26.5 384 21.17 0.01820 0.01223 0.1468 265 -8.1 17.3 33.9 492 26.05 0.02240 0.01505 0.1806 275 1.9 35.3 42.8 620 39.17 0.03368 0.02263 0.2716 Liquid 150 -123 -190 1 14.5 209.7 0.1803 0.1212 1.454 169.16 -103.99 -155.18 1 14.5 186.7 0.1605 0.1079 1.294 Gas 169.16 -103.99 -155.18 1 14.5 9.671 8.32E-03 5.59E-03 0.06705 225 -48.2 -54.7 1 14.5 12.90 0.01109 7.45E-03 0.08944 300 26.9 80.3 1 14.5 20.56 0.01768 0.01188 0.1426 375 102 215 1 14.5 31.00 0.02666 0.01791 0.2149 450 177 350 1 14.5 42.20 0.03629 0.02438 0.2926 Liquid 150 -123 -190 10 145 210.7 0.1812 0.1217 1.461 221.33 -51.82 -61.28 10 145 133.2 0.1145 0.07696 0.9235 Gas 221.33 -51.82 -61.28 10 145 14.11 0.01213 0.00815 0.09783 225 -48.2 -54.7 10 145 14.32 0.01231 0.00827 0.09929 300 26.9 80.3 10 145 21.36 0.01837 0.01234 0.1481 375 102 215 10 145 31.53 0.02711 0.01822 0.2186 450 177 350 10 145 42.58 0.03661 0.02460 0.2952 Liquid 150 -123 -190 50 725 214.7 0.1846 0.1241 1.489 225 -48.2 -54.7 50 725 135.1 0.1162 0.07806 0.9367 281.98 8.83 47.89 50 725 145.7 0.1253 0.08418 1.010 Gas 281.98 8.83 47.89 50 725 182.6 0.1570 0.10550 1.266 300 26.9 80.3 50 725 30.86 0.02653 0.01783 0.2140 375 102 215 50 725 35.45 0.03048 0.02048 0.2458 450 177 350 50 725 45.11 0.03879 0.02606 0.3128 Liquid 150 -123 -190 100 1450 219.6 0.1888 0.1269 1.523 225 -48.2 -55 100 1450 140.9 0.1212 0.08141 0.9769 Supercritical phase 300 27 80 100 1450 79.64 0.06848 0.04602 0.5522 375 102 215 100 1450 45.20 0.03887 0.02612 0.3134 450 177 350 100 1450 50.08 0.04306 0.02894 0.3472
Thermal conductivity unit converter

## Related Topics

• ### Fluid Mechanics

The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
• ### Material Properties

Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
• ### Thermodynamics

Work, heat and energy systems.

## Related Documents

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Online calculator with figures and tables showing air thermal conductivity vs. temperature and pressure. SI and imperial units.
• ### Ammonia - Thermal Conductivity vs. Temperature and Pressure

Online calculator, figures and tables showing thermal conductivity of liquid and gaseous ammonia at temperatures ranging -70 to 425 °C (-100 to 800 °F) at atmospheric and higher pressure - Imperial and SI Units.
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Online calculators, figures and tables showing thermal conductivity of liquid and gaseous butane, C4H10, at varying temperature and pressure, SI and Imperial units.
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Online calculator, figures and table showing thermal conductivity of carbon dioxide, CO2, at temperatures ranging from -50 to 775 °C (-50 to 1400 °F) at atmospheric and higher pressure - Imperial and SI Units.
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Conductive heat transfer takes place in a solid if there is a temperature gradient.
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Online calculator, figures and tables showing density and specific weight of ethylene, C2H4, at varying temperature and pressure - Imperial and SI Units.
• ### Ethylene - Dynamic and Kinematic Viscosity vs. Temperature and Pressure

Online calculator, figures and tables showing dynamic and kinematic viscosity of ethylene, C2H4, also called ethene or acetene, at varying temperature and pressure - Imperial and SI Units.
• ### Ethylene - Thermophysical Properties

Chemical, physical and thermal properties of ethylene, also called ethene, acetene and olefiant gas. Phase diagram included.
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Typical heat exchanger materials and their thermal conductivities.
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Online calculator, figures and tables showing density and specific weight of hydrogen, H2, at temperatures ranging from -260 to 325 °C (-435 to 620 °F) at atmospheric and higher pressure - Imperial and SI Units.
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Online calculator, figures and table showing thermal conductivity of hydrogen, H2, at varying temperature and pressure - Imperial and SI Units.
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Online calculator, figures and table showing thermal conductivity of methane, CH4, at temperatures ranging from -160 to 725 °C (-260 to 1300 °F) at atmospheric and higher pressure - Imperial and SI Units.
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• ### Pipes and Cylinders - Conductive Heat Losses

Conductive heat losses through cylinder or pipe walls.
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Online calculator, figures and tables showing thermal conductivity of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units.
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Thermal conductivity coefficients for insulation materials, aluminum, asphalt, brass, copper, steel, gases and more.
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Convert between thermal conductivity units - table and diagram.
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## Citation

• The Engineering ToolBox (2018). Ethylene - Thermal Conductivity vs. Temperature and Pressure. [online] Available at: https://www.engineeringtoolbox.com/ethylene-ethene-acetene-C2H4-thermal-conductivity-temperature-pressure-d_2108.html [Accessed Day Month Year].

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