Steel tubes 21
| Section | Dimensions | Properties | |||||
|---|---|---|---|---|---|---|---|
| D | t | I | Wel | A | G | ||
| mm | mm | cm4 | cm3 | cm²/m | kg/m | ||
| Steel tubes 21 | 
             1626 
       | 
				
             22.0 
       | 
				
             3565970 
       | 
				
             43860 
       | 
				
             1108.6 
       | 
				
             870.3 
       | 
			|
| D | Diameter (external) | 
|---|---|
| t | Thickness | 
| I | Moment of inertia | 
| Wel | Elastic section modulus | 
| A | Cross sectional steel area | 
| G | Mass | 
