Properties of tubes

This page lists the yield moment and weights of some common aluminium tubes. The figures are provided for information but I cannot guarantee they are accurate – either in general or for your tubes! Check the values before you use them for anything critical. The figures assume a yield/proof stress of 170MPa – this is generally the T6 temper. Other tempers will have different figures.

TubeOD (mm)t (mm)Wt (kg/m)Yield moment (Nm)
5/8” x 18swg15.8751.2190.1532
5/8” x 16swg15.8751.6260.2040
¾ x 18swg19.051.2190.1949
¾ x 16swg19.051.6260.2461
22 x 22220.3498
7/8 x 18swg22.2251.2190.2268
7/8 x 16swg22.2251.6260.2986
1” x 18swg25.41.2190.2591
1” x 16swg25.41.6260.33115
1 1/8” x 18swg28.5751.2190.28117
30 x 23020.48196
1 ¼” x 16swg31.751.6260.42187
1 ½ x 16swg38.11.6260.51277
40 x 1.5401.50.49286
40 x 34030.95511
1 5/8 x 16swg40.1751.6260.54310
1 ¾ x 16swg44.451.6260.60384
1 7/8 x 16swg47.6251.6260.64444
Scaffold tube48.44.51.691,061
50 x 1.5501.50.62457
50 x 25020.82592
2 x 16swg50.81.6260.68509
2 x 14swg50.82.0320.85621
2 x 10swg50.83.2511.32923
45 solid4522.54.331,521
50 solid50255.342,086
55 solid5527.56.462,777
60 solid60307.693,605
2 x ½50.812.74.132,051
2 ¼ x 16swg57.151.6260.77651
2 ¼ x 10swg57.153.2511.501,194
2 ¼ x ¼57.156.352.761,975
2 ¼ x 3/857.159.5253.882,500
60 x 26020.99869
60 x 36031.461,240
60 x 56052.351,866
60 x 1060104.272,893
2 ½ x 16swg63.51.6260.86810
2 ½ x 10swg63.53.2511.671,499
2 ½ x 3/1663.54.76252.392,043
2 ½ x ¼63.56.353.102,523
2 ½ x 3/863.59.5254.393,247
2 ½ x ½63.512.75.513,720
Flagpole 8m63.51.50.79752
Flagpole 6m651.50.81789
2 ¾ x 16swg69.851.6260.95988
2 ¾ x 10swg69.853.2511.851,840
2 ¾ x ¼69.856.353.453,139
70 x 27021.161,201
70 x 37031.721,724
3 x 16swg76.21.6261.041,182
3 x 10swg DD76.23.2512.032,216
3 ¼ x 10swg82.553.2512.202,626
3 ½ x 16swg88.91.6261.211,624
3 ½ x 10swg88.93.2512.383,072
3.5 x ¼88.96.354.485,397
4 x 16swg101.61.6261.392,136
4 x 10swg101.63.2512.734,069
4 x ¼101.66.355.177,243
4 ¼ x 10swg107.953.2512.914,619
4 ½ x 10swg114.33.2513.085,205
4 ½ x ¼114.36.355.869,363
5 x 10swg1273.2513.446,482
5 x ¼1276.356.5511,757
6 x 10swg152.43.2514.149,454