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# Water - Thermal Conductivity vs. Temperature

## Figures and tables showing thermal conductivity of water (liquid and gas phase) with varying temperature and pressure, SI and Imperial 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"

Thermal conductivity unit converter

The thermal conductivity of water depends on temperature and pressure as shown in the figures and tables below:

Thermophysical properties at standard conditions,
as well as thermal conductivity oFor thermal conductivity of construction materials, see related documents at the bottom of the page.

Thermal conductivity of water at given temperatures (°C) and 1 bara:

 State of water Temperature Thermal conductivity [°C] [mW/m K] [kcal(IT)/(h m K)] [Btu(IT)/(h ft °F)] Liquid 0.01 555.75 0.4779 0.3211 10 578.64 0.4975 0.3343 20 598.03 0.5142 0.3455 30 614.50 0.5284 0.3551 40 628.56 0.5405 0.3632 50 640.60 0.5508 0.3701 60 650.91 0.5597 0.3761 70 659.69 0.5672 0.3812 80 667.02 0.5735 0.3854 90 672.88 0.5786 0.3888 99.6 677.03 0.5821 0.3912 Gas 100 24.57 0.0211 0.0142 125 26.66 0.0229 0.0154 150 28.83 0.0248 0.0167 175 31.09 0.0267 0.0180 200 33.43 0.0287 0.0193 225 35.85 0.0308 0.0207 250 38.34 0.0330 0.0222 275 40.91 0.0352 0.0236 300 43.53 0.0374 0.0252 350 48.98 0.0421 0.0283 400 54.65 0.0470 0.0316 450 60.52 0.0520 0.0350 500 66.58 0.0573 0.0385 550 72.81 0.0626 0.0421 600 79.17 0.0681 0.0457 700 92.28 0.0794 0.0533 800 105.81 0.0910 0.0611 900 119.67 0.1029 0.0691

Thermal conductivity of water at given temperatures (°F) and 14.5 psia:

 State of water Temperature Thermal conductivity [°F] [Btu(IT)/(h ft °F)] [Btu(IT) in/(h ft2 °F)] [mW/m K] [x 10-3 cal(IT)/(s cm2 K)] Liquid 32 0.3211 3.853 555.73 1.327 40 0.3273 3.927 566.39 1.353 60 0.3408 4.089 589.80 1.409 80 0.3520 4.225 609.30 1.455 100 0.3615 4.338 625.62 1.494 120 0.3694 4.433 639.35 1.527 140 0.3761 4.513 650.91 1.555 160 0.3817 4.580 660.57 1.578 180 0.3862 4.635 668.45 1.597 200 0.3897 4.677 674.49 1.611 211.3 0.3912 4.694 677.03 1.617 Gas 212 0.0142 0.170 24.57 0.059 250 0.0152 0.183 26.33 0.063 300 0.0166 0.199 28.73 0.069 350 0.0181 0.217 31.25 0.075 400 0.0196 0.235 33.86 0.081 450 0.0211 0.254 36.56 0.087 550 0.0244 0.293 42.24 0.101 600 0.0261 0.313 45.20 0.108 650 0.0279 0.334 48.24 0.115 700 0.0297 0.356 51.35 0.123 750 0.0315 0.378 54.52 0.130 800 0.0334 0.400 57.76 0.138 900 0.0372 0.447 64.41 0.154 1000 0.0412 0.494 71.27 0.170 1100 0.0453 0.543 78.32 0.187 1200 0.0494 0.593 85.53 0.204 1400 0.0580 0.696 100.35 0.240 1600 0.0668 0.802 115.63 0.276

Thermal conductivity unit converter

## Related Topics

• ### Material Properties

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

Steam & condensate systems- properties, capacities, pipe sizing, systems configuration and more.
• ### Thermodynamics

Thermodynamics of steam and condensate systems.
• ### Thermodynamics

Work, heat and energy systems.
• ### Water Systems

Hot and cold water service systems - design properties, capacities, sizing and more.

## Related Documents

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Online calculator with figures and tables showing air thermal conductivity vs. temperature and pressure. SI and imperial units.
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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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Properties like density, specific heat, thermal conductivity, dynamic viscosity and Prandtl number.
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Thermal conductivity of calcium silicate insulation - temperature and k-values.
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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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Thermal conductivity of fiberglass insulation - temperature and k-values.
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Typical heat exchanger materials and their thermal conductivities.
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Thermodynamic properties of heavy water (D2O) like density, melting temperature, boiling temperature, latent heat of fusion, latent heat of evaporation, critical temperature and more.
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Thermal conductivity coefficients for insulation materials, aluminum, asphalt, brass, copper, steel, gases and more.
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• ### Water - Boiling Points at Vacuum Pressure

Online calculator, figures and tables giving the boiling temperatures of water in varying vacuum, SI and Imperial units.
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Definitions, online calculator and figures and tables with water properties like density, specific weight and thermal expansion coefficient of liquid water at temperatures ranging 0 to 360°C (32 to 680°F).
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Free online calculator - figures and tables with viscosity of water at temperatures ranging 0 to 360°C (32 to 675°F) - Imperial and SI Units.
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Figures and tables showing the enthalpy and entropy of liquid water as function of temperature - SI and Imperial Units.
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Online calculator, figures and tables showing heat of vaporization of water, at temperatures from 0 - 370 °C (32 - 700 °F) - SI and Imperial units.
• ### Water - Ionization Constant, pKw, of Normal and Heavy Water

Ionization constant (= dissociation constant = self-ionization constant = ion product = autoprotolysis constant ) of water and heavy water, given as function of temperature (°C and °F) in figures and tables.
• ### Water - Properties at Gas-Liquid Equilibrium Conditions

Figures and tables showing how the properties of water changes along the boiling/condensation curve (vapor pressure, density, viscosity, thermal conductivity, specific heat, Prandtl number, thermal diffusivity, entropy and enthalpy).
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Online calculator, figures and tables with water saturation (vapor) pressure at temperatures ranging 0 to 370 °C (32 to 700°F) - in Imperial and SI Units.
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Figures and tables showing specific gravity of liquid water in the range of 32 to 700 °F or 0 to 370°C, using water density at four different temperatures as reference.
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Online calculator, figures and tables showing specific heat of liquid water at constant volume or constant pressure at temperatures from 0 to 360 °C (32-700 °F) - SI and Imperial units.
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Online calculator, figures and tables showing Specific Volume of water at temperatures ranging from 0-370 °C and 32 - 700 °F - Imperial and IS Units.
• ### Water - Thermal Diffusivity vs. Temperature and Pressure

Figures and tables with thermal diffusivity of liquids and gaseous water at varying temperarures and pressures - SI and Imperial units.
• ### Water - Thermophysical Properties

Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more.
• ### Water Boiling Points at Higher Pressures

Online calculator, figures and tables showing boiling points of water at pressures ranging from 14.7 to 3200 psia (1 to 220 bara). Temperature given as °C, °F, K and °R.
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## Citation

• The Engineering ToolBox (2018). Water - Thermal Conductivity vs. Temperature. [online] Available at: https://www.engineeringtoolbox.com/water-liquid-gas-thermal-conductivity-temperature-pressure-d_2012.html [Accessed Day Month Year].

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9.19.12