Thermal Conductivity of Water: Temperature and Pressure Data
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:
See also other properties of Water at varying temperature and pressure : Boiling points at high pressure, Boiling points at vacuum pressure, Density and specific weight, Dynamic and kinematic viscosity, Enthalpy and entropy, Heat of vaporization, Ionization Constant, pKw , of normal and heavy water, Melting points at high pressure, Prandtl number, Properties at Gas-Liquid Equilibrium Conditions, Saturation pressure, Specific gravity, Specific heat (heat capacity), Specific volume, Thermal diffusivity and Vapour pressure at gas-liquid equilibrium, and Thermophysical properties at standard conditions ,
as well as thermal conductivity o f air, ammonia, butane, carbon dioxide, ethylene, hydrogen, methane, nitrogen and propane . For 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) | (×10-3 cal(IT)/(s cm2K)) | |
| 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 | |
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