H-beam steel building is a new economy. H-beam cross-sectional shape economically reasonable, good mechanical properties, rolling uniform cross section extending the points, a small internal stress, compared with ordinary beam, with a section modulus, light weight, saving advantages of metal, can make building structure to reduce the 30-40%; but also because two parallel lateral leg, the leg-side is a right angle, assembled combined into components, saving welding, riveting work amounted to 25%. Commonly used to cut the requirements bearing capacity, stability, good cross-section of large buildings (such as factories, high-rise buildings, etc.), as well as bridges, ships, lifting and transportation machinery, equipment foundation, frame, foundation piles. H-beam main material have Q235B, SM490, SS400, Q235B, Q345, Q345B and other H-beam is divided into hot-rolled H-shaped steel and welded H beam (H) are two types of hot-rolled H-beam is divided into wide flange H beam (HW ) in H-beam flange (HM) and a narrow flange H beam (HN) three. HW is H-beam flange width and height substantially equal; mainly used for reinforced concrete frame structure column steel core columns, also known as King of the steel column; mainly used in steel H-beam column HM is the ratio of the height and width of the flange approximately 1.33 ~ 1.75, mainly in steel structure: steel frame columns used in the frame structure to withstand dynamic loads to do with the frame beam; for example: H-beam device platform is mainly used for industrial and civil construction beams, columns components. ◆ steel industrial structures bearing bracket ◆ underground engineering steel piles and supporting structure ◆ petrochemical and other industrial equipment and power structures large-span steel bridge components ◆ ◆ ships, machinery manufacturing framework ◆ train, car, tractor beam bracket ◆ Port conveyor speed baffle bracket ordinary beam and light beam beam of the wing to the edge of the root cause of the gradual thinning, there is a certain point of view, the ordinary beam and light beam model with its waist high cm number of digits to represent the different web and flange thickness and flange width specifications to waist high (h) × leg width (b) × waist thick (d) of the coin number, such as "general workers 160 × 88 × 6 ", it means that the high waist of 160 mm, a width of 88 mm legs, waist thick as ordinary beam 6 mm. / "Light 160 × 81 × 5", it means that the high waist of 160 mm, a width of 81 mm legs, waist and 5 mm thick beam of light. Ordinary beam model specifications can also be said that the model represents a few centimeters high waist, such as general workers 16 #. The same beam waist high, if several different legs wide and thick waist, plus abc in the model to the right to be different, such as general workers 32 # a, 32 # b, 32 # c and so on. Hot-rolled ordinary beam specifications for 10-63 #. Hot-rolled ordinary beam size upon the agreement between the supply of 12-55 #. Beam is divided into ordinary beam, light beam and H-beam three. Ordinary beam, light beam flange is variable cross-section by a thick web portion, the outer thin; H-beam: HW HM HN HEA HEB HEM such as I-beam flange is equal section ordinary beam, light word Steel has become the national standard, ordinary 10 # I-beam is equivalent to I100 internationally (such as 10 # channel also corresponds to channel U100) (because the standard implementation of the different countries, resulting in their specifications have subtle differences) H type also called wide-flange steel beam, HW HM HN from European standards, HEB is the German standard I-beam, which HW, HN beam has been widely used and produced in our country. HEA HEB HEM on many German plan would see, in the domestic market is still very difficult to buy. Steel works in the country, if you can use less steel welding and other specifications splicing. The large, then, consider the use of the mechanical properties generally comparable HW, HN steel instead. HW beam is mainly used for reinforced concrete frame structure column steel core columns, also known as King of the steel column; mainly used in steel column HM steel flange height and width ratio of approximately 1.33 ~ 1.75, mainly in steel used to make steel frame columns frame structure to withstand dynamic loads to do with the frame beam; for example: device platform HN steel flange height and width ratio greater than or equal to 2; I-beam is mainly used for general purposes the equivalent beam HN steel; ◆ whether the word is a common type of steel or lightweight, due to cross-sectional dimensions are relatively high, narrow, so the cross-sectional moment of inertia of two spindles quite different, therefore, generally only used directly in its web