I - beam is also called steel beam (its English name is Universal Beam), which is a long - strip steel with an I - shaped cross - section. I - beams are divided into ordinary I - beams and light - type I - beams. It is a section steel with an I - - shaped cross - section.
H - beam is an efficient economic - section profile with more optimized cross - - sectional area distribution and more reasonable strength - - to - - weight ratio. It is named because its cross - - section is the same as the English letter “H”. Since all parts of the H - - beam are arranged at right angles, the H - - beam has such advantages as strong bending resistance in all directions, simple construction, cost - - saving and light structural weight, etc., and has been widely applied.
Internationally, the product standards of H - - beam are divided into two major categories: the imperial system and the metric system. Countries such as the United States and the United Kingdom adopt the imperial system, while countries such as China, Japan, Germany and Russia adopt the metric system. Although the measurement units used in the imperial system and the metric system are different, for H - - beam, most of them use four dimensions to represent their specifications, namely: web height h, flange width b, web thickness d and flange thickness t. Although the methods of representing the size specifications of H - - beam vary from country to country in the world, the range of product size specifications and the dimensional tolerances produced are not much different.
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Time：2024-07-25
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