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Pipe Reference Chart
Confused about wall thickness and pipe schedules? Please use the following ANSI pipe dimension weight chart. For your convenience STANDARD schedules are shaded blue and EXTRA HEAVY schedules are shaded red. This chart is for REFERENCE only. Some items on this list may not be readily available in todays market place. Please refer to our pipe lists in our inventory.
The sizes with an alloy specified on the chart are items we have on hand. Click the Alloy link and it will give you an option to purchase.
1/8"
1/4"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
0.405
40
0.068
0.269
6061
0.54
40
0.088
0.364
T304 /T316
6061
0.405
80
0.095
0.215
0.54
80
0.119
0.302
3/8"
1/2"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
0.675
40
0.091
0.493
6061
0.84
40
0.109
0.622
T304 /T316
6061 /6063
0.675
80
0.126
0.423
0.84
80
0.147
0.546
T304 /T316
6061
3/4"
1"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
1.05
40
0.113
0.824
6061 /6063
1.315
0.083
1.149
1.05
80
0.154
0.742
6061
1.315
0.095
1.125
1.05
160
0.218
0.612
1.315
10
0.109
1.097
1.05
XXHY
0.308
0.434
1.315
0.125
1.065
1.315
40
0.133
1.049
T304 /T316
6061 /6063
1.315
80
0.179
0.957
T304
6061
1.315
XXHY
0.358
0.599
1 1/4"
1 1/2"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
1.66
5
0.065
1.53
1.9
5
0.065
1.774
1.66
0.095
1.47
1.9
10
0.109
1.682
1.66
10
0.109
1.442
1.9
0.125
1.65
1.66
0.125
1.41
1.9
40
0.145
1.61
T304 /T316
6061 /6063
1.66
40
0.14
1.38
6061 /6063
1.9
80
0.2
1.5
T304
6061
1.66
80
0.191
1.278
6061
1.9
160
0.281
1.338
1.66
160
0.25
1.16
1.9
XXHY
0.4
1.1
1.66
XXHY
0.382
0.896
2"
2 1/2"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
2.375
5
0.065
2.245
2.875
5
0.083
2.709
2.375
10
0.109
2.157
2.875
10
0.12
2.635
2.375
40
0.154
2.067
6061 /6063
2.875
0.156
2.563
2.375
80
0.218
1.939
6061
2.875
40
0.203
2.469
T304/ T316
6061 /6063
2.375
160
0.343
1.687
2.875
0.25
2.375
2.375
XXHY
0.436
1.5
2.875
80
0.276
2.323
T304
6061
2.875
160
0.375
2.125
2.875
XXHY
0.552
1.771
3"
3 1/2"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
3.5
5
0.078
3.344
4
5
0.083
3.834
3.5
10
.120
3.26
4
10
0.12
3.76
T304
3.5
0.188
3.124
4
40
0.226
3.548
T304 /T316
6061
3.5
40
0.216
3.068
6061 /6063
4
0.25
3.5
3.5
0.281
2.938
4
80
0.318
3.364
6061
3.5
80
0.3
2.9
6061
4
XXHY
0.636
2.728
3.5
160
0.437
2.624
3.5
XXHY
0.6
2.3
4"
5"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
4.5
5
0.083
4.334
5.563
5
0.109
5.345
4.5
10
0.12
4.26
5.563
10
0.134
5.313
4.5
0.203
4.094
5.563
40
0.258
5.047
T304 /T316
6061
4.5
40
0.237
4.026
6061
5.563
0.312
4.939
4.5
60
0.281
3.938
5.563
80
0.375
4.813
4.5
0.312
3.876
5.563
120
0.5
4.563
4.5
80
0.337
3.826
6061
5.563
160
0.625
4.313
4.5
120
0.438
3.624
5.563
XXHY
0.75
4.063
4.5
160
0.531
3.438
4.5
XXHY
0.674
3.152
6"
8"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
6.625
0.094
6.437
8.625
5
0.109
8.407
6.625
5
0.109
6.407
8.625
0.12
8.385
6.625
10
0.134
6.357
8.625
0.141
8.343
6.625
0.141
6.343
8.625
10
0.148
8.329
6.625
0.25
6.125
8.625
20
0.25
8.125
6.625
40
0.28
6.065
6061
8.625
30
0.277
8.071
6.625
0.344
5.937
8.625
40
0.322
7.981
6061
6.625
80
0.432
5.761
6061
8.625
0.375
7.875
6.625
0.5
5.625
8.625
60
0.406
7.813
6.625
120
0.562
5.501
8.625
0.438
7.749
6.625
0.625
5.375
8.625
80
0.5
7.625
6.625
160
0.719
5.187
8.625
0.562
7.501
6.625
XXHY
0.864
4.897
8.625
100
0.593
7.437
6.625
1.125
4.375
8.625
120
0.719
7.187
8.625
140
0.812
7.001
8.625
XXHY
0.875
6.875
8.625
160
0.906
6.813
10"
12"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
10.75
5
0.134
10.48
12.75
0.172
12.406
10.75
10
0.165
10.42
12.75
0.219
12.312
10.75
0.188
10.374
12.75
20
0.25
12.25
10.75
0.237
10.276
12.75
30
0.33
12.09
10.75
20
0.25
10.25
12.75
0.344
12.062
10.75
0.279
10.192
12.75
STD
0.375
12
10.75
30
0.307
10.136
12.75
40
0.406
11.938
10.75
40
0.365
10.02
12.75
XHY
0.5
11.75
10.75
0.375
10
12.75
60
0.562
11.626
10.75
60
0.5
9.75
12.75
80
0.688
11.374
10.75
0.562
9.626
12.75
0.75
11.25
10.75
80
0.593
9.562
12.75
100
0.844
11.062
10.75
0.625
9.5
12.75
120 / XXHY
1
10.75
10.75
100
0.719
9.312
12.75
140
1.125
10.5
10.75
0.812
9.126
12.75
160
1.312
10.126
10.75
120
0.844
9.062
10.75
140 / XXHY
1
8.75
10.75
160
1.125
8.5
14"
16"
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
O.D.
Sch #
Wall
I.D.
Stainless
Aluminum
14
0.237
13.526
16
10
0.25
15.5
14
10
0.25
13.5
16
0.281
15.438
14
0.281
13.438
16
20
0.312
15.376
14
20
0.312
13.376
16
0.344
15.312
14
0.344
13.312
16
30
0.375
15.25
14
30
0.375
13.25
16
0.406
15.188
14
40
0.438
13.124
16
0.469
15.062
14
0.459
13.082
16
40 / XHY
0.5
15
14
XHY
0.5
13
16
0.562
14.876
14
60
0.594
12.812
16
60
0.656
14.688
14
80
0.75
12.5
16
80
0.844
14.376
14
0.812
12.376
16
100
1.031
13.938
14
100
0.938
12.124
16
120
1.219
13.562
14
120
1.094
11.812
16
140
1.438
13.124
14
140
1.25
11.5
16
160
1.594
12.812
14
160
1.406
11.188