In the Canada and the United States, steel channels are commonly specified using the depth (in inches) and weight of the channel (in pounds per foot). For example, a 6 x 13 channel is approximately 6 inches in depth and weighs approximately 13 pounds per foot. In the UK, steel channel (or C-section) can also be called parallel flange channel.Aluminum Trailer Frames & Crane Beams vs. Steel steel frame c channel steelJul 21, 2017A36, a common Steel alloy for angle iron, channel, etc., has (by definition) a yield strength of 36,000 psi (minimum), and tensile strength of 58,000+ psi. A500, a common steel tube material has a yield around 46,000 psi. But, theres a lot more to it.