I-beam

I-beams, also known as universal beams, are long steel bars with an I-shaped cross-section. I-beams are divided into ordinary I-beams and lightweight I-beams. It is a steel section with an I-shaped cross-section.

I-beams are mainly divided into ordinary I-beams, lightweight I-beams, and wide flange I-beams. According to the ratio of flange to web height, it is divided into wide, medium, and narrow flange I-beams. The specifications produced by the first two are 10-60, with corresponding heights ranging from 10 cm to 60 cm. At the same height, lightweight I-beams have narrow flanges, thin web plates, and are lightweight. Wide flange I-beam, also known as H-beam, has a cross-sectional characteristic of parallel legs and no slope on the inner side of the legs. It belongs to the economic section steel and is rolled on a four roll universal rolling mill, so it is also known as "universal I-beam". Ordinary I-beams and lightweight I-beams have formed national standards.