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304 stainless steel channel steel is a long steel strip with a grooved cross section, similar to stainless steel I-beam. Stainless steel channel steel is divided into ordinary channel steel and light channel steel. The model and specification are expressed as waist height (h) × leg width (b) × waist thickness (d), in millimeters. Its specification expression method, such as 120*53*5, means a channel steel with a waist height of 120 mm, a leg width of 53 mm, and a waist thickness of 5 mm, or 12# channel steel. Channel steels with the same waist height, if there are several different leg widths and waist thicknesses, also need to add a, b, or c to the right of the model to distinguish them, such as 25a#, 25b#, 25c#, etc.
Stainless steel channel steel is mainly used in building structures, vehicle manufacturing and other industrial structures. Channel steel is also often used in conjunction with I-beams.
The 1966 Metallurgical Standard stipulates the specification range from 10-40#. It is primarily used for buildings and steel frame structures.
| Specification | Height (mm) | Width (mm) | Thickness (mm) | Cross-sectional Area (cm²) | Theoretical Weight (kg/m) |
|---|---|---|---|---|---|
| 5# | 50 | 37 | 4.5 | 6.928 | 5.438 |
| 6.3# | 63 | 40 | 4.8 | 8.451 | 6.634 |
| 8# | 80 | 43 | 5.0 | 10.248 | 8.045 |
| 10# | 100 | 48 | 5.3 | 12.748 | 10.007 |
| 14#a | 140 | 58 | 6.0 | 18.516 | 14.535 |
| 16#a | 160 | 63 | 6.5 | 21.962 | 17.24 |
| 18#a | 180 | 68 | 7.0 | 25.699 | 20.174 |
| 20#a | 200 | 73 | 7.0 | 28.837 | 22.637 |
| 25#b | 250 | 80 | 9.0 | 39.917 | 31.335 |
| 28#c | 280 | 86 | 11.5 | 51.234 | 40.219 |
| 32#b | 320 | 90 | 10.0 | 54.913 | 43.107 |
| 40#c | 400 | 104 | 14.5 | 91.068 | 71.488 |
