Machinery's Handbook, 31st Edition
286
Loads for Steel Pipe Columns Allowable Concentric Loads for Steel Pipe Columns STANDARD STEEL PIPE
3
Nominal Diameter, Inches Wall Thickness, Inch Weight per Foot, Pounds Effective Length ( KL ), Feet a
12
10
8
6
5
4
3 1 ∕ 2
0.375 0.365 0.322 0.280 0.258 0.237 0.226 0.216 49.56 40.48 28.55 18.97 14.62 10.79 9.11 7.58
Allowable Concentric Loads in Thousands of Pounds
6 7 8 9
303 301 299 296 293 291 288 285 282 278 275 272 268 265 261 254 246 242 238
246 243 241 238 235 232 229 226 223 220 216 213 209 205 201 193 185 180 176
171 110 168 108 166 106 163 103 161 101
83 81 78 76 73 71 68 65 61 58 55 51 47 43 39 32 27 25 23
59 57 54 52 49 46 43 40 36 33 29 26 23 21 19 15 13 12
48 46 44 41 38 35 32 29 25 22 19 17 15 14 12 10
38 36 34 31 28 25 22 19 16 14 12 11 10
10 11 12 13 14 15 16 17 18 19 20 22 24 25 26
158 155 152 149 145 142 138 135 131 127 119 111 106 102
98 95 92 89 86 82 79 75 71 67 59 51 47 43
9
EXTRA STRONG STEEL PIPE
Nominal Diameter, Inches Wall Thickness, Inch Weight per Foot, Pounds Effective Length ( KL ), Feet a
12
10
8
6
5
4
3 1 ∕ 2
3
0.500 0.500 0.500 0.432 0.375 0.337 0.318 0.300 65.42 54.74 43.39 28.57 20.78 14.98 12.50 10.25
Allowable Concentric Loads in Thousands of Pounds
6 7 8 9
400 397 394 390 387 383 379 375 371 367 363 353 349 344 337 334 323 312 301
332 328 325 321 318 314 309 305 301 296 291 281 276 271 265 260 248 236 224
259 166 255 162 251 159 247 155 243 151 239 146 234 142 229 137 224 132 219 127 214 122 203 111 197 105
118 114 111 107 103
81 78 75 71 67 63 59 54 49 44 39 31 28 25 22 21 17
66 63 59 55 51 47 43 38 33 29 25 20 18 16 14
52 48 45 41 37 33 28 24 21 18 16 12 11
10 11 12 13 14 15 16 18 19 20 21 22 24 26 28
99 95 91 86 81 76 65 59 54 48 44 37 32
191 185 179 166 152 137
99 92 86 73 62 54
27 a With respect to radius of gyration. The effective length ( KL ) is the actual unbraced length, L , in feet, multiplied by the effective length factor ( K ), which is dependent upon the restraint at the ends of the unbraced length and the means available to resist lateral movements. K may be determined by referring to the last portion of this table.
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