LIPPED ANGLES


Cold Formed Lipped Angles


A common replacement for lip channels in the market is lipped angles.

Though the rolling process of both lip channels and lipped angles are similar, the strip width used for the lipped angle is less than that of a lip channel. This means that there is a potential cost saving to the customer or end user as the lipped angle should be lighter than the lip channel. Transport cost and the cost of hot dip galvanizing can therefore be reduced. The fact that there is also less of an area to cover on a lipped angle than that of a lip channel could have cost savings implications should one paint or primer the steel section.

Both lip channels and lipped angles have a wide variety of common sizes available in the South African market. To add value and assist customers Tubecon offers an inline punching facility that can punch holes of various sizes in the profile, we can also roll the steel channel to length.

The table below will indicate the most common steel lipped angle sizes:

 

cold_formed_lipped_angles.png

Cold-formed lipped angles dimensions and properties
 Designation
 h*b*c*t
 m A  ax                ay                  rv                    J
 mm  kg/m                10^3mm^2  mm  mm  mm  10^3mm^4
 75x50x20x2.0  2.42  0.308  27.7  15.1  14.6  0.427
 2.5  2.96  0.378  27.8  15.1  14.4  0.828
 3.0  3.49  0.445  27.9  15.2  14.2  1.42
 100x50x25x2.0  2.96  0.378  39.5  14.3  15.4  0.520
 2.5  3.65  0.465  39.6  14.4  15.2  1.01
 3.0  4.32  0.550  39.8  14.4  15.0  1.73
 100x75x25x2.0  3.36  0.428  35.0  22.4  21.1  0.587
 2.5  4.14  0.528  35.1  22.5  20.9  1.14
 3.0  4.90  0.625  35.2  22.5  20.7  1.96
 115x75x25x2.0  3.59  0.458  41.2  21.0  21.3  0.627
 2.5  4.44  0.565  41.2  21.1  21.1  1.22
 3.0  5.26  0.670  41.3  21.1  20.9  2.09
 125x75x25x2.5  4.63  0.590  45.4  20.2  21.2  1.27
 3.0  5.49  0.700  45.5  20.3  20.9  2.18
 3.5  6.33  0.807  45.6  20.3  20.7  3.45
 4.5  7.95  1.01  45.8  20.4  20.3  7.26
 150x75x25x2.5  5.12  0.653  56.2  18.4  21.0  1.40
 3.0  6.08  0.775  56.3  18.4  20.8  2.41
 3.5  7.02  0.894  56.4  18.5  20.6  3.81
 4.5  8.83  1.12  56.7  18.6  20.1  8.02

rv = minimum radius of gyration 

 

Cold-formed lipped angles dimensions and properties (continued)
 Designation
 hxbxcxt
 I  Ze  r  I  Ze  r
 mm  10^6mm^4  10^3mm^3  mm           10^6mm^4  10^3mm^3  mm
                     About x-x                  About y-y
 75x50x20x2.0  0.229  4.83  27.3  0.097  2.78  17.8
 2.5  0.275  5.82  27.0  0.116  3.32  17.5
 3.0  0.317  6.73  26.7  0.132  3.80  17.3
 100x50x25x2.0  0.504  8.33  36.5  0.119  3.33  17.7
 2.5  0.611  10.1  36.2  0.142  3.99  17.5
 3.0  0.711  11.8  35.9  0.164  4.60  17.3
 100x75x25x2.0  0.570  8.76  36.5  0.310  5.89  26.9
 2.5  0.692  10.7  36.2  0.375  7.14  26.7
 3.0  0.807  12.5  35.9  0.435  8.29  26.4
 115x75x25x2.0  0.802  10.9  41.8  0.323  5.98  26.5
 2.5  0.977  13.2  41.6  0.391  7.24  26.3
 3.0  1.14  15.5  41.3  0.454  8.42  26.0
 125x75x25x2.5  1.20  15.1  45.1  0.400  7.30  26.0
 3.0  1.40  17.7  44.8  0.465  8.49  25.8
 3.5  1.60  20.1  44.5  0.525  9.60  25.5
 4.5  1.95  24.6  43.9  0.631  11.6  25.0
 150x75x25x2.5  1.89  20.1  53.8  0.420  7.43  25.4
 3.0  2.22  23.7  53.5  0.489  8.64  25.1
 3.5  2.53  27.0  53.2  0.552  9.77  24.9
 4.5  3.10  33.3  52.5  0.665  11.8  24.3