Copper Tubing HVAC Size Chart

Hydraulic, Pneumatic Design & Engineering | Fluid Power Engineering

Copper Tubing HVAC Size Chart- Size and Physical Characteristics of Copper Tube: ACR (Air-Conditioning and Refrigeration Field Service) (A= Annealed Temper, D=Drawn Temper)

Nominal or Standard
Size, inches
Nominal Dimensions, inches
Calculated Values (based on nominal dimensions)
Outside Diameter
Inside Diameter
Wall Thickness
Cross Sectional Area of Bore,
sq inches
External Surface,
sq ft per linear ft
Internal Surface,
sq ft/linear ft
Weight of Tube Only,
pounds/linear ft
Contents of Tube,
cu ft /linear ft
1/8
A
.125
.065
.030
.00332
.0327
.0170
.0347
.00002
3/16
A
.187
.128
.030
.0129
.0492
.0335
.0575
.00009
1/4
A
.250
.190
.030
.0284
.0655
.0497
.0804
.00020
5/16
A
.312
.248
.032
.0483
.0817
.0649
.109
.00034
3/8
A
.375
.311
.032
.076
.0982
.0814
.134
.00053
D
.375
.315
.030
.078
.0982
.0821
.126
.00054
1/2
A
.500
.436
.032
.149
.131
.114
.182
.00103
D
.500
.430
.035
.145
.131
.113
.198
.00101
5/8
A
.625
.555
.035
.242
.164
.145
.251
.00168
D
.625
.545
.040
.233
.164
.143
.285
.00162
3/4
A
.750
.680
.035
.363
.196
.178
.305
.00252
A
.750
.666
.042
.348
.196
.174
.362
.00242
D
.750
.666
.042
.348
.196
.174
.362
.00242
7/8
A
.875
.785
.045
.484
.229
.206
.455
.00336
D
.875
.785
.045
.484
.229
.206
.455
.00336
1 1/8
A
1.125
1.025
.050
.825
.294
.268
.655
.00573
D
1.125
1.025
.050
.825
.294
.268
.655
.00573
1 3/8
A
1.375
1.265
.055
1.26
.360
.331
.884
.00875
D
1.375
1.265
.055
1.26
.360
.331
.884
.00875
1 5/8
A
1.625
1.505
.060
1.78
.425
.394
1.14
.0124
D
1.625
1.505
.060
1.78
.425
.394
1.14
.0124
2 1/8
D
2.125
1.985
.070
3.09
.556
.520
1.75
.0215
2 5/8
D
2.625
2.465
.080
4.77
.687
.645
2.48
.0331
3 1/8
D
3.125
2.945
.090
6.81
.818
.771
3.33
.0473
3 5/8
D
3.625
3.425
.100
9.21
.949
.897
4.29
.0640
4 1/8
D
4.125
3.905
.110
12.0
1.08
1.02
5.38
.0833
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