RefrigerantASHRAE R-407A

R-407A

A1Non-flammableHFC blend AIM Act phase-down

R-32/R-125/R-134a (20/40/40)

Ternary HFC blend (20% R-32 / 40% R-125 / 40% R-134a). Branded as Arkema Forane 407A. ASHRAE A1, GWP 2107. Commercial refrigeration alternative to R-407C and R-404A — higher R-32 content gives better low-temperature capacity than R-407C.

Saturation @ 70°F

148.8 / 127.0PSIG

GWP (IPCC AR5)

2107100-yr

Temperature glide

9.9°F

Boiling point

-49.0°F

R-407A PT calculator Superheat

Non-flammable

Lower toxicity (Occupational Exposure Limit ≥ 400 ppm). No flame propagation in air at standard atmospheric pressure and 60°C. R-134a, R-22, R-410A, R-404A, R-744 (CO2) are A1.

Flammability: None (no flame propagation)
Toxicity: Lower (OEL ≥ 400 ppm)

Classification per ANSI/ASHRAE Standard 34-2022. See full reference.

Saturation pressure-temperature curve

Pressure

Temperature

Highlight at°F

Quick lookup — R-407A

Temp:°F

148.8 / 127.0PSIG(1,026 / 875 kPa)

Bubble Dew· zeotropic blend

Range: -40 to 150°FOpen full PT calculator →

Common service temperatures

32°F

72 / 58PSIG

Freezing

45°F

95 / 77PSIG

Heat-pump heat

70°F

149 / 127PSIG

Standard

75°F

162 / 139PSIG

Test ref

80°F

175 / 152PSIG

Warm

95°F

221 / 194PSIG

Summer peak

Saturation values from CoolProp 7.2.0 R407A.mix. Operating pressure on a running system differs — see the operating-pressure references for in-use values.

R-407A PT chart PDF — printable saturation table

Looking for the R-407A PT chart PDF for shop reference? The complete pressure-temperature saturation table is below — every 1° increment from −40°F to 150°F (or to the refrigerant's critical temperature). Use the Print / Save as PDF button in the table header to download a clean, table-only PDF (the rest of the page is hidden from the print output). Important service temperatures (normal boiling point, freezing point of water, residential AC evap and condenser targets) are tinted and tagged in the table for at-a-glance shop reference.

R-407A PT Chart — Pressure-Temperature Saturation Table

1° increments · Source: CoolProp 7.2.0 / manufacturer datasheet · hvacptcharts.com

R-407A · 1° increments · °F / PSIG

Tinted rows: 32°F H₂O freeze · 20°F MT evap target · 35°F MT box temp · 95°F AHRI design ambient · 110°F Cond saturation

R-407A pressure-temperature saturation table in Fahrenheit and PSIG
Temp (°F)	Bubble (PSIG)	Dew (PSIG)	Glide (PSI)
-40°F	3.9	-1.0	4.9
-39°F	4.4	-0.6	5.0
-38°F	4.9	-0.2	5.1
-37°F	5.4	0.2	5.2
-36°F	5.9	0.6	5.3
-35°F	6.4	1.0	5.4
-34°F	7.0	1.4	5.5
-33°F	7.5	1.9	5.6
-32°F	8.1	2.3	5.7
-31°F	8.6	2.8	5.8
-30°F	9.2	3.3	6.0
-29°F	9.8	3.7	6.0
-28°F	10.4	4.2	6.2
-27°F	11.0	4.7	6.3
-26°F	11.6	5.2	6.4
-25°F	12.3	5.8	6.5
-24°F	12.9	6.3	6.6
-23°F	13.6	6.8	6.7
-22°F	14.2	7.4	6.8
-21°F	14.9	7.9	7.0
-20°F	15.6	8.5	7.1
-19°F	16.3	9.1	7.2
-18°F	17.0	9.7	7.3
-17°F	17.7	10.3	7.5
-16°F	18.5	10.9	7.6
-15°F	19.2	11.5	7.7
-14°F	20.0	12.2	7.8
-13°F	20.8	12.8	8.0
-12°F	21.6	13.5	8.1
-11°F	22.4	14.2	8.2
-10°F	23.2	14.9	8.4
-9°F	24.0	15.6	8.5
-8°F	24.9	16.3	8.6
-7°F	25.8	17.0	8.8
-6°F	26.6	17.8	8.9
-5°F	27.5	18.5	9.0
-4°F	28.4	19.3	9.2
-3°F	29.4	20.1	9.3
-2°F	30.3	20.9	9.4
-1°F	31.3	21.7	9.6
0°F	32.2	22.5	9.7
1°F	33.2	23.4	9.9
2°F	34.2	24.2	10.0
3°F	35.2	25.1	10.2
4°F	36.3	26.0	10.3
5°F	37.3	26.9	10.5
6°F	38.4	27.8	10.6
7°F	39.5	28.7	10.8
8°F	40.6	29.7	10.9
9°F	41.7	30.6	11.1
10°F	42.8	31.6	11.2
11°F	44.0	32.6	11.4
12°F	45.1	33.6	11.5
13°F	46.3	34.6	11.7
14°F	47.5	35.7	11.8
15°F	48.8	36.8	12.0
16°F	50.0	37.8	12.1
17°F	51.2	38.9	12.3
18°F	52.5	40.0	12.5
19°F	53.8	41.2	12.6
20°FMT evap target	55.1	42.3	12.8
21°F	56.5	43.5	13.0
22°F	57.8	44.7	13.1
23°F	59.2	45.9	13.3
24°F	60.6	47.1	13.5
25°F	62.0	48.3	13.6
26°F	63.4	49.6	13.8
27°F	64.9	50.9	14.0
28°F	66.3	52.2	14.2
29°F	67.8	53.5	14.3
30°F	69.3	54.8	14.5
31°F	70.9	56.2	14.7
32°FH₂O freeze	72.4	57.6	14.8
33°F	74.0	59.0	15.0
34°F	75.6	60.4	15.2
35°FMT box temp	77.2	61.8	15.4
36°F	78.8	63.3	15.5
37°F	80.5	64.8	15.7
38°F	82.2	66.3	15.9
39°F	83.9	67.8	16.1
40°F	85.6	69.4	16.3
41°F	87.4	70.9	16.4
42°F	89.2	72.5	16.6
43°F	90.9	74.1	16.8
44°F	92.8	75.8	17.0
45°F	94.6	77.4	17.2
46°F	96.5	79.1	17.3
47°F	98.4	80.8	17.5
48°F	100.3	82.5	17.7
49°F	102.2	84.3	17.9
50°F	104.2	86.1	18.1
51°F	106.2	87.9	18.3
52°F	108.2	89.7	18.5
53°F	110.2	91.6	18.6
54°F	112.3	93.4	18.8
55°F	114.3	95.3	19.0
56°F	116.5	97.3	19.2
57°F	118.6	99.2	19.4
58°F	120.8	101.2	19.6
59°F	123.0	103.2	19.8
60°F	125.2	105.2	20.0
61°F	127.4	107.3	20.1
62°F	129.7	109.3	20.3
63°F	132.0	111.5	20.5
64°F	134.3	113.6	20.7
65°F	136.7	115.8	20.9
66°F	139.0	117.9	21.1
67°F	141.4	120.2	21.3
68°F	143.9	122.4	21.5
69°F	146.3	124.7	21.7
70°F	148.8	127.0	21.8
71°F	151.3	129.3	22.0
72°F	153.9	131.7	22.2
73°F	156.4	134.0	22.4
74°F	159.1	136.5	22.6
75°F	161.7	138.9	22.8
76°F	164.3	141.4	23.0
77°F	167.0	143.9	23.2
78°F	169.8	146.4	23.3
79°F	172.5	149.0	23.5
80°F	175.3	151.6	23.7
81°F	178.1	154.2	23.9
82°F	181.0	156.9	24.1
83°F	183.8	159.6	24.3
84°F	186.7	162.3	24.4
85°F	189.7	165.1	24.6
86°F	192.7	167.8	24.8
87°F	195.7	170.7	25.0
88°F	198.7	173.5	25.2
89°F	201.7	176.4	25.3
90°F	204.8	179.3	25.5
91°F	208.0	182.3	25.7
92°F	211.1	185.3	25.9
93°F	214.3	188.3	26.0
94°F	217.6	191.3	26.2
95°FAHRI design ambient	220.8	194.4	26.4
96°F	224.1	197.6	26.6
97°F	227.4	200.7	26.7
98°F	230.8	203.9	26.9
99°F	234.2	207.2	27.0
100°F	237.7	210.4	27.2
101°F	241.1	213.8	27.4
102°F	244.6	217.1	27.5
103°F	248.2	220.5	27.7
104°F	251.7	223.9	27.8
105°F	255.3	227.4	28.0
106°F	259.0	230.9	28.1
107°F	262.7	234.4	28.3
108°F	266.4	238.0	28.4
109°F	270.1	241.6	28.6
110°FCond saturation	273.9	245.2	28.7
111°F	277.8	248.9	28.8
112°F	281.6	252.7	29.0
113°F	285.5	256.4	29.1
114°F	289.5	260.2	29.3
115°F	293.5	264.1	29.4
116°F	297.5	268.0	29.5
117°F	301.6	271.9	29.6
118°F	305.6	275.9	29.7
119°F	309.8	279.9	29.8
120°F	314.0	284.0	29.9
121°F	318.2	288.1	30.1
122°F	322.4	292.3	30.2
123°F	326.7	296.5	30.3
124°F	331.1	300.7	30.4
125°F	335.4	305.0	30.4
126°F	339.9	309.3	30.5
127°F	344.3	313.7	30.6
128°F	348.8	318.1	30.7
129°F	353.4	322.6	30.7
130°F	357.9	327.1	30.8
131°F	362.6	331.7	30.9
132°F	367.2	336.3	30.9
133°F	371.9	341.0	31.0
134°F	376.7	345.7	31.0
135°F	381.5	350.5	31.0
136°F	386.4	355.3	31.1
137°F	391.2	360.1	31.1
138°F	396.2	365.1	31.1
139°F	401.1	370.0	31.1
140°F	406.2	375.1	31.1
141°F	411.2	380.1	31.1
142°F	416.3	385.3	31.1
143°F	421.5	390.4	31.0
144°F	426.7	395.7	31.0
145°F	431.9	401.0	31.0
146°F	437.2	406.3	30.9
147°F	442.6	411.8	30.8
148°F	448.0	417.2	30.8
149°F	453.4	422.7	30.7
150°F	458.9	428.3	30.6

R-407A pressure-temperature saturation table in Celsius and kPa
Temp (°C)	Bubble (kPa)	Dew (kPa)	Glide (kPa)
-40°C	27	-7	34
-39°C	33	-2	35
-38°C	39	3	36
-37°C	46	8	38
-36°C	53	14	39
-35°C	60	19	40
-34°C	67	25	42
-33°C	74	31	43
-32°C	82	38	44
-31°C	90	44	46
-30°C	98	51	47
-29°C	106	58	49
-28°C	115	65	50
-27°C	124	73	52
-26°C	134	80	53
-25°C	143	88	55
-24°C	153	97	56
-23°C	163	105	58
-22°C	174	114	60
-21°C	185	123	61
-20°C	196	133	63
-19°C	208	143	65
-18°C	220	153	67
-17°C	232	163	68
-16°C	244	174	70
-15°C	257	185	72
-14°C	271	197	74
-13°C	284	208	76
-12°C	298	221	78
-11°C	313	233	80
-10°C	328	246	82
-9°C	343	259	84
-8°C	359	273	86
-7°CMT evap target	375	287	88
-6°C	391	301	90
-5°C	408	316	92
-4°C	425	332	94
-3°C	443	347	96
-2°C	461	363	98
-1°C	480	380	100
0°CH₂O freeze	499	397	102
1°C	519	415	104
2°CMT box temp	539	432	107
3°C	560	451	109
4°C	581	470	111
5°C	602	489	113
6°C	625	509	116
7°C	647	529	118
8°C	670	550	120
9°C	694	572	122
10°C	718	594	125
11°C	743	616	127
12°C	768	639	129
13°C	794	663	132
14°C	821	687	134
15°C	848	711	136
16°C	875	737	139
17°C	904	763	141
18°C	932	789	143
19°C	962	816	146
20°C	992	844	148
21°C	1,023	872	150
22°C	1,054	901	153
23°C	1,086	931	155
24°C	1,118	961	157
25°C	1,152	992	160
26°C	1,186	1,024	162
27°C	1,220	1,056	164
28°C	1,256	1,089	167
29°C	1,292	1,123	169
30°C	1,328	1,157	171
31°C	1,366	1,192	173
32°C	1,404	1,228	175
33°C	1,443	1,265	178
34°C	1,482	1,303	180
35°CAHRI design ambient	1,523	1,341	182
36°C	1,564	1,380	184
37°C	1,605	1,419	186
38°C	1,648	1,460	188
39°C	1,691	1,501	190
40°C	1,736	1,544	192
41°C	1,781	1,587	194
42°C	1,826	1,631	196
43°CCond saturation	1,873	1,676	197
44°C	1,921	1,721	199
45°C	1,969	1,768	201
46°C	2,018	1,816	202
47°C	2,068	1,864	204
48°C	2,119	1,913	205
49°C	2,171	1,964	207
50°C	2,223	2,015	208
51°C	2,277	2,067	209
52°C	2,331	2,121	210
53°C	2,386	2,175	211
54°C	2,443	2,231	212
55°C	2,500	2,287	213
56°C	2,558	2,345	213
57°C	2,617	2,403	214
58°C	2,677	2,463	214
59°C	2,738	2,524	214
60°C	2,800	2,586	215
61°C	2,863	2,649	214
62°C	2,928	2,714	214
63°C	2,993	2,779	213
64°C	3,059	2,846	212
65°C	3,126	2,915	211

CoolProp 7.2.0 · PSIG/kPa = gauge · PSIA = PSIG + 14.696 · kPa(abs) = kPa(gauge) + 101.325

Full saturation values at 1° increments — toggle between °F / PSIG and °C / kPa. Use Print / Save as PDF for laminated shop reference, or download the CSV / JSON below for use in other tools. R-407A PT chart data: CoolProp 7.2.0 (REFPROP-compatible Helmholtz EOS) or manufacturer datasheet, validated against AHRI Standard 700-2019.

At a glance

Chemistry

R-32/R-125/R-134a (20/40/40)

Ternary HFC blend

Lubricant compatibility

POEMO

POE required. Used as a medium-/low-temperature R-22 retrofit, also as a lower-GWP alternative to R-404A in commercial refrigeration. Significant temperature glide (~5-6 K).

Blend composition

R-3220.0%
R-12540.0%
R-134a40.0%

Trade names

Forane 407AArkema

Common applications

Commercial refrigeration (medium and low temp)
R-22 / R-404A retrofit
Supermarket display cases

Properties

Boiling point (1 atm)
-45.0°C / -49.0°F
Critical point
180.0°F at 640 PSIG
Molar mass
90.11 g/mol
Temperature glide
9.9°F
ODP
0
GWP (AR5, 100-yr)
2107
GWP (AR6, 100-yr)
2298

What is R-407A?

R-407A is a ternary HFC blend developed by Arkema for commercial refrigeration applications. The composition is similar to R-407C (same three components — R-32, R-125, R-134a) but with different proportions: less R-134a, more R-32 and R-125. This composition difference shifts the blend's pressure envelope and capacity toward commercial refrigeration (medium and low temperature) rather than R-407C's residential AC retrofit position.

R-407A occupies a niche between R-407C (R-22 retrofit for AC) and R-404A (commercial refrigeration). For commercial refrigeration applications where R-407C is insufficient capacity but R-404A's GWP is restrictive, R-407A is a middle-ground option — though both R-407A and R-407C have been largely displaced by the lower-GWP R-448A and R-449A in modern commercial refrigeration.

Where R-407A is used

Commercial refrigeration medium and low temperature (supermarket cases, walk-in coolers)
R-22 retrofit (commercial refrigeration applications)
R-404A retrofit (lower-GWP alternative within the HFC family)
Some industrial chiller applications

Regulatory & phase-down status

R-407A's GWP of 2107 is above the EPA AIM Act 700 threshold for new commercial refrigeration equipment. For new installations R-407A is not the choice; for existing R-407A or R-404A equipment service it remains available.

Service notes

POE oil required. Significant temperature glide (~5-6°F at typical operating pressures); TXV operation may require attention. Use the dew curve for superheat measurement.

Temperature glide

R-407A is a zeotropic blend: at constant pressure it boils across a temperature range rather than at a single point. This affects EXV sizing, charge measurement, and superheat measurement. Use the dew curve for superheat, bubble curve for subcooling.

Operating cycle

Phase-down timeline

No phase-down milestones documented for R-407A in this build. This may mean: (a) no regulatory phase-down currently published; (b) the refrigerant has local regulatory schedules not yet transcribed into the site dataset; or (c) it is a specialty refrigerant outside the main regulatory frameworks. For authoritative current status, consult the EPA AIM Act allocations (40 CFR Part 84), EU F-Gas Regulation 517/2014 + 2024/573, and the relevant national implementations of the Kigali Amendment.

Properties: GWP (AR5) 2107 · ODP 0 · AIM Act affected · type: hfc-blend

Global warming potential, in context

Commercial refrigeration — medium temperature

Retrofit and replacement paths

R-407A replaces

Replacements for R-407A

Frequently asked

›How does R-407A compare to R-407C?

Same components (R-32, R-125, R-134a) with different proportions. R-407C is 23/25/52 (R-134a-dominant), positioning it as an R-22 AC retrofit. R-407A is 20/40/40 (R-125-dominant), positioning it for commercial refrigeration. R-407A has higher R-125 content and slightly higher pressures across the envelope, better suited to lower-temperature evaporator operation.

›Why use R-407A instead of R-404A for commercial refrigeration?

GWP. R-407A (2107) is meaningfully lower than R-404A (3922) for the same application. The trade-off is somewhat lower capacity per unit displacement and the temperature glide that R-404A (near-azeotropic) doesn't have. For installations where R-404A is being retrofitted and oil/equipment changes are minor, R-407A is a meaningful GWP improvement; for new equipment the modern path is R-448A, R-449A, R-454C, or R-455A.

›What lubricant does R-407A use?

POE oil. Mineral oil and alkylbenzene are not miscible.

›What is the normal operating pressure of R-407A?

Roughly 15-25% higher than R-407C at the same operating conditions due to the higher R-125 content. At a 25°F walk-in cooler evaporator with 95°F ambient, expect approximately 50-65 PSIG suction and 230-280 PSIG discharge.

›Does R-407A have temperature glide?

Yes — about 5-6°F at typical evaporator pressures. Smaller than R-407C's ~7°F glide but still meaningful. Use the dew curve for superheat math.

Download this dataset

Full PT chart for R-407A · CC BY 4.0 · attribute the source

CSV JSON

Saturation pressure-temperature curve

R-407A PT chart PDF — printable saturation table

R-407A PT Chart — Pressure-Temperature Saturation Table

At a glance

Chemistry

Lubricant compatibility

Blend composition

Trade names

Common applications

Properties

What is R-407A?

Where R-407A is used

Regulatory & phase-down status

Service notes

Temperature glide

Operating cycle

Phase-down timeline

Global warming potential, in context

Retrofit and replacement paths

R-407A replaces

Replacements for R-407A

More on R-407A

Calculators

Guides

Frequently asked

Download this dataset