Pipes & Tubes

OD and Nominal Pipe Size

NOMINAL PIPE SIZE OUTSIDE DIAMETER (INCHES)
1/2" 0.84
3/4" 1.05
1" 1.315
1-1/4" 1.66
1-1/2" 1.9
2" 2.375
2-1/2" 2.875
3" 3.5
3-1/2" 4

Wall Thickness and Pipe Schedule

GAUGE THICKNESS RANGE(INCHES) TYPICAL VALUE (INCHES)
22 0.025 through 0.029 0.028
20 0.031 through 0.035 0.035
19 0.038 through 0.042 0.042
18 0.044 through 0.049 0.049
17 0.053 through 0.058 0.058
16 0.060 through 0.065 0.065
15 0.066 through 0.074 0.072
14 0.075 through 0.085 0.083
13 0.087 through 0.097 0.095
12 0.101 through 0.111 0.109
11 0.112 through 0.122 0.12
10 0.126 through 0.136 0.134
9 0.140 through 0.150 0.148
8 0.157 through 0.167 0.165
7 0.175 through 0.185 0.18
NOMINAL PIPE SIZE OD SCH 5 SCH 10 SCH 40 SCH 80
1/2" 0.84 0.065 0.083 0.109 0.147
3/4" 1.05 0.065 0.083 0.113 0.154
1" 1.315 0.065 0.109 0.133 0.179
1-1/4" 1.66 0.065 0.109 0.14 0.191
1-1/2" 1.9 0.065 0.109 0.145 0.2
2" 2.375 0.083 0.109 0.154 0.218
2-1/2" 2.875 0.083 0.12 0.203 0.276
3" 3.5 0.083 0.12 0.216 0.3
3-1/2" 4 0.083 0.12 0.226 0.318
4" 4.5 0.083 0.12 0.237 0.337
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