Fluids / R-410A (saturated liquid)
Thermal conductivity of R-410A (saturated liquid) vs temperature
R-410A saturated liquid from −40 to 60 °C — the high-pressure blend in most modern split systems and heat pumps, running roughly 60 % above R-134a pressures.
Thermal conductivity in W/(m·K), from -40 to 60 °C along the saturation curve. The chart and the table below are the same numbers; the table is the one you can copy.
| Density | 1,046 kg/m³ |
| Vapour pressure | 1,444.2 kPa |
| Latent heat of vaporisation | 202.9 kJ/kg |
| Dynamic viscosity | 0.14 mPa·s |
| Specific heat | 1.6 kJ/(kg·K) |
| Temperature (°C) | Thermal conductivity (W/(m·K)) | Row |
|---|---|---|
| -40 | 0.135 | published |
| -30 | 0.129 | interpolated |
| -20 | 0.123 | published |
| -10 | 0.117 | interpolated |
| 0 | 0.111 | published |
| 10 | 0.105 | interpolated |
| 20 | 0.099 | published |
| 30 | 0.093125 | interpolated |
| 40 | 0.087 | published |
| 50 | 0.080125 | interpolated |
| 60 | 0.073 | published |
Rows marked published land exactly on a source anchor and are the tabulated figure. The rest are this library’s interpolation between the two anchors either side — good enough to design with, and said out loud so you can decide that for yourself.
NIST REFPROP / ASHRAE Handbook—Fundamentals, Ch. 30, saturated liquid line · validated -40 to 60 °C · interpolated between 6 published anchors (values held, not extrapolated, past the ends) · saturated state only