How to distinguish between narrow flange and wide flange H section steel
The I-beam section is well pressed and resistant to pulling, but the section size is too narrow to resist torsion. H steel is vice versa, so both have advantages and disadvantages.
I as the name suggests, is a kind of I-shaped section steel flange on the inner surface of slope is generally 1:6, the flange and the thickness of thin, resulting in two main characteristics of I-beam section plane is huge, it is difficult to play the strength of steel in the application, as the first picture shows. Although there has been a thicker I-beam in the I-beam market, the structure of the I-beam has determined its torsional properties.
