R744 pressure–temperature chart
Saturation pressure and temperature of R744: convert temperature to pressure or pressure to temperature, and see the full table.
Refrigerant
- Safety class
- A1
- GWP (AR4)
- 1
- Temperature glide
- No glide
Saturation point
33.84 barg
34.85 bar a · 490.8 psig
Type: Pure substanceSafety class: A1GWP (AR4): 1Temperature glide: No glideCritical point: 31.0 °C · 73.8 bar
R744 — Pressure–temperature table
| °C | °F | bar a | barg | psig |
|---|---|---|---|---|
| -54 | -65.2 | 5.78 | 4.77 | 69.1 |
| -52 | -61.6 | 6.29 | 5.27 | 76.5 |
| -50 | -58.0 | 6.82 | 5.81 | 84.3 |
| -48 | -54.4 | 7.39 | 6.38 | 92.5 |
| -46 | -50.8 | 8.00 | 6.99 | 101.3 |
| -44 | -47.2 | 8.64 | 7.63 | 110.7 |
| -42 | -43.6 | 9.33 | 8.31 | 120.6 |
| -40 | -40.0 | 10.05 | 9.04 | 131.1 |
| -38 | -36.4 | 10.81 | 9.79 | 142.1 |
| -36 | -32.8 | 11.61 | 10.59 | 153.7 |
| -34 | -29.2 | 12.45 | 11.44 | 165.9 |
| -32 | -25.6 | 13.34 | 12.33 | 178.8 |
| -30 | -22.0 | 14.28 | 13.27 | 192.4 |
| -28 | -18.4 | 15.26 | 14.25 | 206.6 |
| -26 | -14.8 | 16.29 | 15.28 | 221.6 |
| -24 | -11.2 | 17.37 | 16.36 | 237.3 |
| -22 | -7.6 | 18.51 | 17.50 | 253.8 |
| -20 | -4.0 | 19.70 | 18.69 | 271 |
| -18 | -0.4 | 20.94 | 19.93 | 289 |
| -16 | 3.2 | 22.24 | 21.23 | 307.9 |
| -14 | 6.8 | 23.60 | 22.58 | 327.5 |
| -12 | 10.4 | 25.01 | 24.00 | 348.1 |
| -10 | 14.0 | 26.49 | 25.48 | 369.5 |
| -8 | 17.6 | 28.03 | 27.02 | 391.8 |
| -6 | 21.2 | 29.63 | 28.62 | 415.1 |
| -4 | 24.8 | 31.31 | 30.29 | 439.3 |
| -2 | 28.4 | 33.04 | 32.03 | 464.6 |
| 0 | 32.0 | 34.85 | 33.84 | 490.8 |
| 2 | 35.6 | 36.74 | 35.72 | 518.1 |
| 4 | 39.2 | 38.69 | 37.68 | 546.5 |
| 6 | 42.8 | 40.73 | 39.71 | 576 |
| 8 | 46.4 | 42.83 | 41.82 | 606.6 |
| 10 | 50.0 | 45.02 | 44.01 | 638.3 |
| 12 | 53.6 | 47.31 | 46.29 | 671.4 |
| 14 | 57.2 | 49.68 | 48.66 | 705.8 |
| 16 | 60.8 | 52.13 | 51.12 | 741.4 |
| 18 | 64.4 | 54.67 | 53.65 | 778.2 |
| 20 | 68.0 | 57.29 | 56.28 | 816.2 |
| 22 | 71.6 | 60.04 | 59.03 | 856.1 |
| 24 | 75.2 | 62.88 | 61.87 | 897.4 |
| 26 | 78.8 | 65.85 | 64.84 | 940.4 |
| 28 | 82.4 | 68.94 | 67.93 | 985.3 |
| 30 | 86.0 | 72.14 | 71.13 | 1,031.6 |
bar a = absolute (bar a) · barg = gauge (barg) (bar a − 1,013)
All refrigerants
- R404ANear-azeotropic blend · A1 · GWP 3,9220 °C: 6.10 bar a
- R507AAzeotropic blend · A1 · GWP 3,9850 °C: 6.25 bar a
- R134aPure substance · A1 · GWP 1,4300 °C: 2.93 bar a
- R449AZeotropic blend · Temperature glide ≈ 4.5 K · A1 · GWP 1,3970 °C: 6.12 bar a
- R448AZeotropic blend · Temperature glide ≈ 5 K · A1 · GWP 1,3870 °C: 6.24 bar a
- R407CZeotropic blend · Temperature glide ≈ 7 K · A1 · GWP 1,7740 °C: 5.68 bar a
- R410ANear-azeotropic blend · A1 · GWP 2,0880 °C: 7.99 bar a
- R32Pure substance · A2L · GWP 6750 °C: 8.13 bar a
- R22Pure substance · A1 · GWP 1,8100 °C: 4.98 bar a
- R290Pure substance · A3 · GWP 30 °C: 4.74 bar a
- R717Pure substance · B2L · GWP 00 °C: 4.29 bar a
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