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# Steel Pipe Columns - Allowable Loads

## Allowable concentric loads for steel pipe columns.

The tables bellows indicates allowable concentric loads for steel pipe columns:

### Standard Steel Pipe

Nominal Pipe Diameter
(inches)
Wall Thickness
(inches)

Effective Length of Column (feet)
68101214161820
3 0.216 38 34 28 22 16 12 10
3 1/2 0.226 48 44 38 32 25 19 15 12
4 0.237 59 54 49 43 36 29 23 19
5 0.257 83 78 73 68 61 55 47 39
6 0.280 110 106 101 95 89 82 75 67
8 0.322 171 166 161 155 149 142 135 127
10 0.365 246 241 235 229 223 216 209 201
12 0.375 303 299 293 288 282 275 268 261
• 1 lbf (Pound force) = 4.45 N = 0.45 kp

### Extra Strong Steel Pipe

Nominal Pipe Diameter
(inches)
Wall Thickness
(inches)

Effective Length of Column (feet)
68101214161820
3 0.300 52 45 37 28 21 16 12
3 1/2 0.318 66 59 51 43 33 25 20 16
4 0.337 81 75 67 59 49 39 31 25
5 0.375 118 111 103 95 86 76 65 54
6 0.432 166 159 151 142 132 122 111 99
8 0.500 259 251 243 234 224 214 203 191
10 0.500 332 325 318 309 301 291 281 271
12 0.500 400 394 387 379 371 363 353 344

Note that the effective column length depends on the column configuration. The values above is valid for columns with rotation free and translation fixed in both ends - equal to correction factor k = 1 in the Euler Column Formula.

## Related Topics

• Beams and Columns - Deflection and stress, moment of inertia, section modulus and technical information of beams and columns.

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Temperature

oC
oF

Length

m
km
in
ft
yards
miles
naut miles

Area

m2
km2
in2
ft2
miles2
acres

Volume

m3
liters
in3
ft3
us gal

Weight

kgf
N
lbf

Velocity

m/s
km/h
ft/min
ft/s
mph
knots

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O

Flow

m3/s
m3/h
US gpm
cfm

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