R-410A (HFC)
R-410A PT Chart
The full R-410A pressure-temperature reference table, from -20 to 130°F. R-410A reads on one saturation column with no usable glide. Cross-checked against the Hudson Technologies R-410A chart and CoolProp reference data.
R-410A Pressure-Temperature Table
| Pressure (psig) | Sat. Temp (°F) |
|---|---|
| 26.9 | -20°F |
| 36.8 | -10°F |
| 48.6 | 0°F |
| 55.2 | 5°F |
| 62.3 | 10°F |
| 70 | 15°F |
| 78.3 | 20°F |
| 87.3 | 25°F |
| 96.8 | 30°F |
| 107 | 35°F |
| 118 | 40°F |
| 130 | 45°F |
| 142 | 50°F |
| 155 | 55°F |
| 170 | 60°F |
| 185 | 65°F |
| 201 | 70°F |
| 217 | 75°F |
| 235 | 80°F |
| 254 | 85°F |
| 274 | 90°F |
| 295 | 95°F |
| 317 | 100°F |
| 340 | 105°F |
| 365 | 110°F |
| 391 | 115°F |
| 418 | 120°F |
| 446 | 125°F |
| 476 | 130°F |
Read the low-side (suction) pressure and find its saturation temperature for superheat, and read the high-side (liquid) pressure and its saturation temperature for subcooling. The chart is in psig (gauge) and °F. To convert: kPa gauge = psig × 6.895; °C = (°F − 32) / 1.8.
R-410A PT Chart FAQs
What is the R-410A pressure at 40F and 100F?
On the R-410A PT chart, 40F saturation is about 118 psig and 100F is about 317 psig, rising to 476 psig at 130F. R-410A is a near-azeotropic blend read on a single saturation column, so the same saturation temperature serves both superheat (suction side) and subcooling (liquid side).
Does the R-410A PT chart have glide (bubble and dew)?
No usable glide. R-410A is a near-azeotrope: its glide is a fraction of a degree, small enough that the field reads it on one saturation column like a pure refrigerant. Zeotropic blends such as R-454B, R-407C, and R-448A are the ones that list a separate bubble and dew temperature at each pressure.
Is the R-410A PT chart the same as R-454B?
No, but they are close. R-410A runs a little higher: about 6 psig above R-454B at 40F and 16 psig higher at 100F condensing. That is why R-454B is a low-glide near-match on the pressure side, but it is still not an actual drop-in because it is A2L and needs A2L-rated equipment. Read each refrigerant on its own column.
What units is this R-410A PT chart in, and how do I convert to kPa or Celsius?
The table is in psig (gauge pressure) and degrees Fahrenheit, the field-standard units in North America. To convert pressure to kPa (gauge), multiply psig by 6.895. To convert temperature to Celsius, use C = (F - 32) / 1.8. For example, 100F is about 37.8C.
Related R-410A Tools
R-410A Superheat & Subcooling Calculator
Enter your readings; the calculator interpolates this PT chart and returns the verdict.
R-454B vs R-410A
The A2L replacement in new ducted systems: pressures, GWP, glide, and the line-set question.
R-410A Phase-Out and A2L Transition
What the 2025 GWP cutoff changed, and why existing R-410A systems keep running.
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