Hot rolled common I-beams, also known as steel beams, are long steel bars with I-shaped cross sections. Its cross-sectional dimension is expressed in millimeters of waist height (h)× waist thickness (d). for example, I-beams with waist height of 160mm, leg width of 88mm, and waist thickness of 6mm are marked as "I-beams 160×88×6". another marking method for I-beams is to use model numbers, i.e. the centimeters of waist height, such as I-beams 16#. I-beams with the same waist height but different waist thickness and leg width need to be distinguished by adding A, B and C on the right side of the model, such as 32a#, 32b#, 32c#. Hot rolled I-beams are divided into ordinary I-beams and light I-beams.
(1) common i-beams (GB706-88, GB1591-79) A. Main Uses: Ordinary I-beams are widely used in various building structures, bridges, vehicles, supports and machinery, etc.
(2) Light I-beam (YB163-63) The wings of common I-beams and light I-beams are gradually thinner from the root to the edge with a certain angle. Compared with common I-beams, hot rolled light I-beams have wider legs and thinner waist and legs when the waist height is the same, i.e. wide legs and thin walls. Under the condition of ensuring load-bearing capacity, light weight
Circular Steel Tube
Steel with a hollow section whose length is much larger than the diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped ... according to the production process, it can be divided into seamless steel pipe and welded steel pipe, among which seamless steel pipe can be divided into hot rolling and cold rolling (drawing), and welded steel pipe can be divided into straight seam welded steel pipe and spiral seam welded steel pipe.
Hot rolled round steel weight per meter (unit)
A kind of appellation for square tube, that is, steel tube with equal side and length.
1. Square pipe is a kind of light thin-walled steel pipe with hollow square section, also known as steel cold-formed section. It is made of Q235 hot-rolled or cold-rolled strip steel or rolled plate as the base material, which is formed by cold bending and then welded by high-frequency welding. Except for the thickening of the wall thickness, the corner dimension and side straightness of the hot-rolled extra-thick square pipe reach or even exceed the level of the resistance welded cold-formed square pipe.
2. Square pipes are used in construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation supports, steel structure projects, electric power projects, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, housing construction, etc.
Square tube theoretical weight：
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