I-steel is a section of i-shaped bar steel, i-steel specifications have a variety of models.
I - beam specifications also determine the variety of I - beam can be used in many fields.
I-beam specification is expressed by the centimeter value of waist width, such as no. 20 i-beam, whose waist width is 20cm.
I-bars are available in hot rolled ordinary i-bars, light i-bars, and broad parallel leg i-bars (h-bars).
The waist width of hot rolled ordinary i-bar in China is 100 ~ 630mm, expressed as No.10 ~ No.63, and the inclination of the inner leg wall is 1:6.
The pass system of rolling i-bar includes direct pass system, cross pass system and mixed pass system.
In addition, I steel can also be used by special rolling.
Its specification is expressed by height × leg thickness × waist thickness, also can use number to express the main size of specification.
For example, no. 18 i-bar represents the i-bar with a height of 18 cm.
For i-bars of the same height, the number may be indicated by a or b or c, such as 36a, 36b, 36c, etc.
The above is small make up for you to bring the relevant knowledge about I steel specifications, hope to help you.