Dimensions of Type K Copper Tubbing
Dimensions of Type K Copper Tubbing
Nominal Size
Outside Diameter
Wall Thickness
Inside Diameter
Flow Area
( in )
( in)
( mm )
( in )
( mm )
( in )
( ft )
( mm )
( ft2 )
( in2 )
1/8
0.250
6.35
0.035
0.889
0.180
0.0150
4.572
1.767 x 10-4
1.642 x 10-5
1/4
0.375
9.53
0.049
1.245
0.277
0.0231
7.036
4.185 x 10-4
3.888 x 10-5
3/8
0.500
12.70
0.049
1.245
0.402
0.0335
10.21
8.814 x 10-4
8.189 x 10-5
1/2
0.625
15.88
0.049
1.245
0.527
0.0439
13.39
1.515 x 10-3
1.407 x 10-4
5/8
0.750
19.05
0.049
1.245
0.652
0.0543
16.56
2.319 x 10-3
2.154 x 10-4
3/4
0.875
22.23
0.065
1.651
0.745
0.0621
18.92
3.027 x 10-3
2.812 x 10-4
1
1.125
28.58
0.065
1.651
0.995
0.0829
25.27
5.400 x 10-3
5.017 x 10-4
1 1/4
1.375
34.93
0.065
1.651
1.245
0.1037
31.62
8.454 x 10-3
7.854 x 10-4
1 1/2
1.625
41.28
0.072
1.829
1.481
0.1234
37.62
1.196 x 10-2
1.111 x 10-3
2
2.125
53.98
0.083
2.108
1.959
0.1632
49.76
2.093 x 10-2
1.945 x 10-3
2 1/2
2.625
66.68
0.095
2.413
2.435
0.2029
61.85
3.234 x 10-2
3.004 x 10-3
3
3.125
79.38
0.109
2.769
2.907
0.2423
73.84
4.609 x 10-2
4.282 x 10-3
3 1/2
3.625
92.08
0.120
3.048
3.385
0.2821
85.98
6.249 x 10-2
5.806 x 10-3
4
4.125
104.8
0.134
3.404
3.857
0.3214
97.97
8.114 x 10-2
7.538 x 10-3
5
5.125
130.2
0.160
4.064
4.805
0.4004
122.0
1.259 x 10-1
1.170 x 10-2
6
6.125
155.6
0.192
4.877
5.741
0.4784
145.8
1.798 x 10-1
1.670 x 10-2
8
8.125
206.4
0.271
6.883
7.583
0.6319
192.6
3.136 x 10-1
2.914 x 10-2
10
10.125
257.2
0.338
8.585
9.449
0.7874
240.0
4.870 x 10-1
4.524 x 10-2
12
12.125
308.0
0.405
10.287
11.315
0.9429
287.4
6.983 x 10-1
6.487 x 10-2
