What type of channel is used for the type of room with a span of 4 meters?
By experience, use 14# i-beam.
The flexural strength of 10# steel in the distance is less than 50 cm, a span of 4 meters is safe.
I-beam, also called steel girder, is a long strip steel with cross section. The specifications are expressed by the height of the waist (H) * leg width (b) * waist thickness (d), such as "work 160*88*6", which means that the waist height is 160 mm, the width of the leg is 88 mm, and the thickness of the waist is 6 mm. The specifications of I-beam can also be expressed by type. The model indicates the height of centimeters, such as 16#. The same height of the I-beam, if there are several different leg width and waist thickness, should be added on the right side of the model a, B, C to distinguish, such as 32a#, 32b#, 32c# and so on. The I-beam is made of ordinary I-beam and light I-beam, and the specification for hot-rolled ordinary I-beam is 10-63#. Standard Specification for hot-rolled ordinary I-beam supplied by supply and demand agreement is 12-55#. I-beam is widely used in various building structures, bridges, vehicles, supports, machinery and so on.
