Tubing Characteristics
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Tubing
OD, in | BWG gauge |
Wall thickness, in |
Inside cross-sectional area, in2 |
Ft2
external surface per ft length |
Ft2
internal surface per ft length |
Weight
per ft length steel, lb † |
Tubing
ID, in |
Moment
of inertia, in4 |
Section modulus, in3 |
Radius of gyration, in |
Costant
C ↨ |
OD |
Transverse metal area, in2 |
1/4 |
22 |
0.028 |
0.0295 |
0.0655 |
0.0508 |
.0066 |
0.194 |
0.00012 |
0.00098 |
0.0792 |
46 |
1.289 |
0.0195 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1/4 |
24 |
.022 |
.0333 |
.0655 |
.0539 |
.054 |
.206 |
.00011 |
.00083 |
.0810 |
52 |
1.214 |
.0159 |
1/4 |
26 |
.018 |
.0360 |
.0655 |
.0560 |
.045 |
.214 |
.00009 |
.00071 |
.0824 |
56 |
1.168 |
.0131 |
1/4 |
27 |
.016 |
.0373 |
.0655 |
.0570 |
.040 |
.218 |
.00008 |
.00064 |
.0829 |
58 |
1.146 |
.0117 |
3/8 |
18 |
.049 |
.0603 |
.0982 |
.0725 |
.171 |
.277 |
.00068 |
.0036 |
.1164 |
94 |
1.354 |
.0502 |
3/8 |
20 |
.035 |
.0731 |
.0982 |
.0798 |
.127 |
.305 |
.00055 |
.0029 |
.1213 |
114 |
1.233 |
.0374 |
3/8 |
22 |
.028 |
.0799 |
.0982 |
.0835 |
.104 |
.319 |
.00046 |
.0025 |
.1227 |
125 |
1.176 |
.0305 |
3/8 |
24 |
.022 |
.0860 |
.0982 |
.0867 |
.083 |
.331 |
.00038 |
.0020 |
.1248 |
134 |
1.133 |
.0244 |
1/2 |
16 |
.065 |
.1075 |
.1309 |
.0969 |
.302 |
.370 |
.0022 |
.0086 |
.1556 |
168 |
1.351 |
.0888 |
1/2 |
18 |
.049 |
.1269 |
.1309 |
.1052 |
.236 |
.402 |
.0018 |
.0072 |
.1606 |
198 |
1.244 |
.0694 |
1/2 |
20 |
.035 |
.1452 |
.1309 |
.1126 |
.174 |
.430 |
.0014 |
.0056 |
.1649 |
227 |
1.163 |
.0511 |
1/2 |
22 |
.028 |
.1548 |
.1309 |
.1162 |
.141 |
.444 |
.0012 |
.0046 |
.1671 |
241 |
1.126 |
.0415 |
5/8 |
12 |
.109 |
.1301 |
.1636 |
.1066 |
.602 |
.407 |
.0061 |
.0197 |
.1864 |
203 |
1.536 |
.177 |
5/8 |
13 |
.095 |
.1486 |
.1636 |
.1139 |
.537 |
.435 |
.0057 |
.0183 |
.1903 |
232 |
1.437 |
.158 |
5/8 |
14 |
.083 |
.1655 |
.1636 |
.1202 |
.479 |
.459 |
.0053 |
.0170 |
.1938 |
258 |
1.362 |
.141 |
5/8 |
15 |
.072 |
.1817 |
.1636 |
.1259 |
.425 |
.481 |
.0049 |
.0156 |
.1971 |
283 |
1.299 |
.125 |
5/8 |
16 |
.065 |
.1924 |
.1636 |
.1296 |
.388 |
.495 |
.0045 |
.0145 |
.1993 |
300 |
1.263 |
.114 |
5/8 |
17 |
.058 |
.2035 |
.1636 |
.1333 |
.350 |
.509 |
.0042 |
.0134 |
.2016 |
317 |
1.228 |
.103 |
5/8 |
18 |
.049 |
.2181 |
.1636 |
.1380 |
.303 |
.527 |
.0037 |
.0118 |
.2043 |
340 |
1.186 |
.089 |
5/8 |
19 |
.042 |
.2298 |
.1636 |
.1416 |
.262 |
.541 |
.0033 |
.0105 |
.2068 |
358 |
1.155 |
.077 |
5/8 |
20 |
.035 |
.2419 |
.1636 |
.1453 |
.221 |
.555 |
.0028 |
.0091 |
.2089 |
377 |
1.126 |
.065 |
3/4 |
10 |
.134 |
.1865 |
.1963 |
.1262 |
.844 |
.482 |
.0129 |
.0344 |
.2229 |
285 |
1.556 |
.260 |
3/4 |
11 |
.120 |
.2043 |
.1963 |
.1335 |
.809 |
.510 |
.0122 |
.0326 |
.2267 |
319 |
1.471 |
.238 |
3/4 |
12 |
.109 |
.2223 |
.1963 |
.1393 |
.748 |
.532 |
.0116 |
.0309 |
.2299 |
347 |
1.410 |
.220 |
3/4 |
13 |
.095 |
.2463 |
.1963 |
.1466 |
.666 |
.560 |
.0107 |
.0285 |
.2340 |
384 |
1.339 |
.196 |
3/4 |
14 |
.083 |
.2679 |
.1963 |
.1529 |
.592 |
.584 |
.0098 |
.0262 |
.2376 |
418 |
1.284 |
.174 |
3/4 |
15 |
.072 |
.2884 |
.1963 |
.1587 |
.520 |
.606 |
.0089 |
.0238 |
.2410 |
450 |
1.238 |
.153 |
3/4 |
16 |
.065 |
.3019 |
.1963 |
.1623 |
.476 |
.620 |
.083 |
.0221 |
.2433 |
471 |
1.210 |
.140 |
3/4 |
17 |
.058 |
.3157 |
.1963 |
.1660 |
.428 |
.634 |
.0076 |
.0203 |
.2455 |
492 |
1.183 |
.126 |
3/4 |
18 |
.049 |
.3339 |
.1963 |
.1707 |
.367 |
.652 |
.0067 |
.0178 |
.2484 |
521 |
1.150 |
.108 |
3/4 |
20 |
.035 |
.3632 |
.1963 |
.1780 |
.269 |
.680 |
.0050 |
.0134 |
.2532 |
567 |
1.103 |
.079 |
7/8 |
10 |
.134 |
.2892 |
.2291 |
.1589 |
1.061 |
.607 |
.0221 |
.0505 |
.2662 |
451 |
1.441 |
.312 |
7/8 |
12 |
.109 |
.3390 |
.2291 |
.1720 |
.891 |
.657 |
.0196 |
.0449 |
.2736 |
529 |
1.332 |
.262 |
7/8 |
13 |
.095 |
.3685 |
.2291 |
.1793 |
.792 |
.685 |
.0180 |
.0411 |
.2778 |
575 |
1.277 |
.233 |
7/8 |
14 |
.083 |
.3948 |
.2291 |
.1856 |
.704 |
.709 |
.0164 |
.0374 |
.2815 |
616 |
1.234 |
.207 |
7/8 |
16 |
.065 |
.4359 |
.2291 |
.1950 |
.561 |
.745 |
.0137 |
.0312 |
.2873 |
680 |
1.174 |
.165 |
7/8 |
18 |
.049 |
.4742 |
.2291 |
.2034 |
.432 |
.777 |
.0109 |
.0249 |
.2925 |
740 |
1.126 |
.127 |
7/8 |
20 |
.035 |
.5090 |
.2291 |
.2107 |
.313 |
.805 |
.0082 |
.0187 |
.2972 |
749 |
1.087 |
.092 |
1 |
8 |
.165 |
.3526 |
.2618 |
.1754 |
1.462 |
.670 |
.0392 |
.0784 |
.3009 |
550 |
1.493 |
.430 |
1 |
10 |
.134 |
.4208 |
.2618 |
.1916 |
1.237 |
.732 |
.0350 |
.0700 |
.3098 |
656 |
1.366 |
.364 |
1 |
11 |
.120 |
.4536 |
.2618 |
.1990 |
1.129 |
.760 |
.0327 |
.0654 |
.3140 |
708 |
1.316 |
.332 |
1 |
12 |
.109 |
.4803 |
.2618 |
.2047 |
1.037 |
.782 |
.0307 |
.0615 |
.3174 |
749 |
1.279 |
.305 |
1 |
13 |
.095 |
.5153 |
.2618 |
.2121 |
.918 |
.810 |
.0280 |
.0559 |
.3217 |
804 |
1.235 |
.270 |
1 |
14 |
.083 |
.5463 |
.2618 |
.2183 |
.813 |
.834 |
.0253 |
.0507 |
.3255 |
852 |
1.199 |
.239 |
1 |
15 |
.072 |
.5755 |
.2618 |
.2241 |
.714 |
.856 |
.0227 |
.0455 |
.3291 |
898 |
1.167 |
.210 |
1 |
16 |
.065 |
.5945 |
.2618 |
.2278 |
.649 |
.870 |
.0210 |
.0419 |
.3314 |
927 |
1.149 |
.191 |
1 |
18 |
.049 |
.6390 |
.2618 |
.2361 |
.496 |
.902 |
.0166 |
.0332 |
.3366 |
997 |
1.109 |
.146 |
1 |
20 |
.035 |
.6793 |
.2618 |
.2435 |
.360 |
.930 |
.0124 |
.0247 |
.3414 |
1060 |
1.075 |
.106 |
1 1/4 |
7 |
.180 |
.6221 |
.3272 |
.2330 |
2.057 |
.890 |
.0890 |
.1425 |
.3836 |
970 |
1.404 |
.605 |
1 1/4 |
8 |
.165 |
.6648 |
.3272 |
.2409 |
1.921 |
.920 |
.0847 |
.1355 |
.3880 |
1037 |
1.359 |
.565 |
1 1/4 |
10 |
.134 |
.7574 |
.3272 |
.2571 |
1.598 |
.982 |
.0741 |
.1186 |
.3974 |
1182 |
1.273 |
.470 |
1 1/4 |
11 |
.120 |
.8012 |
.3272 |
.2644 |
1.448 |
1.010 |
.0688 |
.1100 |
.4018 |
1250 |
1.238 |
.426 |
1 1/4 |
12 |
.109 |
.8365 |
.3272 |
.2702 |
1.329 |
1.032 |
.0642 |
.1027 |
.4052 |
1305 |
1.211 |
.391 |
1 1/4 |
13 |
.095 |
.8825 |
.3272 |
.2775 |
1.173 |
1.060 |
.0579 |
.0926 |
.4097 |
1377 |
1.179 |
.345 |
1 1/4 |
14 |
.083 |
.9229 |
.3272 |
.2838 |
1.033 |
1.084 |
.0521 |
.0833 |
.4136 |
1440 |
1.153 |
.304 |
1 1/4 |
16 |
.065 |
.9852 |
.3272 |
.2932 |
.823 |
1.120 |
.0426 |
.0682 |
.4196 |
1537 |
1.116 |
.242 |
1 1/4 |
18 |
.049 |
1.042 |
.3272 |
.3016 |
.629 |
1.152 |
.0334 |
.0534 |
.4250 |
1626 |
1.085 |
.185 |
1 1/4 |
20 |
.035 |
1.094 |
.3272 |
.3089 |
.456 |
1.180 |
.0247 |
.0395 |
.4297 |
1707 |
1.059 |
.134 |
1 1/2 |
10 |
.134 |
1.192 |
.3927 |
.3225 |
1.955 |
1.232 |
.1354 |
.1806 |
.4853 |
1860 |
1.218 |
.575 |
1 1/2 |
12 |
.109 |
1.291 |
.3927 |
.3356 |
1.618 |
1.282 |
.1159 |
.1546 |
.4933 |
2014 |
1.170 |
.476 |
1 1/2 |
14 |
.083 |
1.398 |
.3927 |
.3492 |
1.258 |
1.334 |
.931 |
.1241 |
.5018 |
2181 |
1.124 |
.370 |
1 1/2 |
16 |
.065 |
1.474 |
.3927 |
.3587 |
.996 |
1.370 |
.0756 |
.1008 |
.5079 |
2299 |
1.095 |
.293 |
2 |
11 |
.120 |
2.433 |
.5236 |
.4608 |
2.410 |
1.760 |
.3144 |
.3144 |
.6660 |
3795 |
1.136 |
.709 |
2 |
14 |
.038 |
9 |
.5236 |
.4801 |
1.699 |
1.834 |
.2300 |
.2300 |
.6784 |
4121 |
1.090 |
.500 |
2 1/2 |
9 |
.148 |
3.815 |
.6540 |
.5770 |
3.719 |
2.204 |
.7592 |
.6074 |
.8332 |
5951 |
1.134 |
1.094 |
† Weights are based on low-carbon steel with a density of 0.2833 lb/in3. For other metals multiply by the following factors: |
||
|---|---|---|
Aluminum...........................................0.35 |
Aluminum brass....................1.06 |
|
Titanium..............................................0.58 |
Nickel-chrome-iron..............1.07 |
|
AISI 400 series stainless steels...0.99 |
Admiralty.................................1.09 |
|
AISI 300 series stainless steels...1.92 |
Nickel and nickel-copper.....1.13 |
|
Aluminum bronze..............................1.04 |
Copper and cupronickels....1.14 |
|
|
↨ Liquid velocity = (lb per tube per h / C x sp gr of liquid) in
ft / s [sp gr of water at 16oC (60oF) = 1.0] |
||
