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Steel Pipes Dimensions - ANSI Schedule 80
Internal and external diameters, areas, weights, volumes and number of threads for schedule 80 steel pipes
Pipe Size
(inches)
Diameter
(inches)
Nominal Thickness
(inches)
Transverse Areas
(sq. inches)
Length of Pipe
(per sq. foot of)
Volume
(Cubic feet pr. foot)
Weight
Number of Threads per inch of Screw
External
Internal
External
Internal
Steel
External Surface
(feet)
Internal Surface
(feet)
(pounds per foot. lb / ft)
(kg/m)
1/8
0.41
0.22
0.10
0.13
0.04
0.09
9.43
17.75
0.0003
0.31
0.47
27
¼
0.54
0.30
0.12
0.23
0.07
0.16
7.07
12.65
0.0005
0.54
0.80
18
3/8
0.68
0.42
0.13
0.36
0.14
0.22
5.66
9.03
0.0010
0.74
1.10
18
½
0.84
0.55
0.15
0.55
0.23
0.32
4.55
7.00
0.0016
1.00
1.49
18
¾
1.05
0.74
0.15
0.87
0.43
0.43
3.64
5.15
0.0030
1.47
2.19
14
1
1.32
0.96
0.18
1.36
0.72
0.64
2.90
4.00
0.0050
2.17
3.23
14
1 ¼
1.66
1.28
0.19
2.16
1.28
0.88
2.30
2.99
0.0891
3.00
4.46
11 ½
1 ½
1.90
1.50
0.20
2.84
1.77
1.07
2.01
2.54
0.0123
3.65
5.43
11 ½
2
2.38
1.94
0.22
4.43
2.95
1.48
1.61
1.97
0.0205
5.02
7.47
11 ½
2 ½
2.88
2.32
0.28
6.49
4.24
2.25
1.33
1.65
0.0294
7.66
11.40
11 ½
3
3.50
2.90
0.30
9.62
6.61
3.02
1.09
1.32
0.0459
10.30
15.33
8
3 ½
4.00
3.36
0.32
12.56
8.89
3.68
0.95
1.14
0.0617
12.50
18.60
8
4
4.50
3.83
0.34
15.90
11.50
4.41
0.85
1.00
0.0198
14.90
22.17
8
5
5.56
4.81
0.38
24.30
18.19
6.11
0.69
0.79
0.1263
20.80
30.95
8
6
6.63
5.76
0.43
34.47
26.07
8.30
0.58
0.67
0.1810
28.60
42.56
8
8
8.63
7.63
0.50
58.42
45.66
12.76
0.44
0.50
0.3171
43.40
64.59
8
10
10.75
9.56
0.59
90.76
71.84
18.92
0.36
0.40
0.4989
64.40
95.84
8
12
12.75
11.38
0.69
127.64
101.64
26.00
0.30
0.34
0.7058
88.60
131.85
14
14.00
12.50
0.75
153.94
122.72
31.22
0.27
0.31
0.8522
107.00
159.23
16
16.00
14.31
0.84
201.05
160.92
40.13
0.24
0.26
1.1170
137.00
203.88
18
18.00
16.13
0.94
254.85
204.24
50.61
0.21
0.24
1.4180
171.00
254.48
20
20.00
17.94
1.03
314.15
252.72
61.43
0.19
0.21
1.7550
209.00
311.03
24
24.00
21.56
1.22
452.40
365.22
87.18
0.16
0.17
2.5360
297.00
441.99
