I section steel are mainly divided into ordinary I-beams, light-duty I section steel and wide-flange I section steel. According to the height ratio of the flange to the web, it is divided into wide, medium, and narrow wide flange I section steel. The first two production specifications are 10-60, that is, the corresponding height is 10 cm-60 cm. At the same height, the lightweight I-beam has narrow flanges, thin webs and light weight. The wide-flange I section steel is also called H-beam, and its cross-section is characterized by parallel legs and no slope on the inner side of the legs. It belongs to economic section steel, which is rolled on a four-high universal rolling mill, so it is also called "universal I section steel". Ordinary I section steel and light-duty I-beams have become national standards.

Regardless of whether the I section steel is ordinary or light, because the cross-section size is relatively high and narrow, the moment of inertia of the two main axes of the cross-section is quite different, so it can only be directly used for bending in the plane of its web. Components or form them into lattice-type force-bearing components. It is not suitable to use axial compression members or members that are perpendicular to the plane of the web and bend, which makes the application range very limited. I section steel are widely used in construction or other metal structures.

Ordinary I section steel and light-duty I section steel have relatively high and narrow cross-sections, so the moments of inertia of the two main axes of the cross-sections are quite different, which limits their application range. The use of I-beam should be selected according to the requirements of the design drawings.

The selection of I-beam in the structural design should be based on its mechanical properties, chemical properties, weld ability, structural size, etc. to select a reasonable I section steel for use.

The specifications are expressed in terms of height × leg thickness × waist thickness, and the number can also be used to indicate the main size of the specification. For example, No. 18 I section steel means an I-beam with a height of 18 cm. For I-beams of the same height, they can be indicated by adding angle codes a, b, or c after the number, such as 36a, 36b, 36c, etc. It is divided into ordinary I-beam, light I section steel and wide flange I-beam. According to the height ratio of the flange to the web, it is divided into wide, medium, and narrow wide flange I-beams. The first two production specifications are 10-60, that is, the corresponding height is 10 cm-60 cm.

And I section steel characteristics:

Good low chemical and environmental media corrosion performance. High strength, light weight and impact resistance.

 Good insulation and magnetic permeability.

Anti-aging, long life and maintenance-free.

 Fire and flame retardant, insulation and heat insulation.

 Easy and fast installation and cutting.

Strong designability and beautiful appearance.

 I section steel functions: supporting structure, structural profiles, grille floors, railings, flyovers and working platforms, cable distribution racks, tool handles, substation structures, etc.

I-beams are widely used in the construction industry and are available in a variety of standard sizes. Tables are available to allow easy selection of a suitable steel I-beam size for a given applied load. I-beams may be used both as beams and as columns.

I-beams may be used both on their own, or acting compositely with another material, typically concrete. Design may be governed by any of the following criteria:

deflection: the stiffness of the I-beam will be chosen to minimize deformation

vibration: the stiffness and mass are chosen to prevent unacceptable vibrations, particularly in settings sensitive to vibrations, such as offices and libraries

bending failure by yielding: where the stress in the cross section exceeds the yield stress

bending failure by lateral torsional buckling: where a flange in compression tends to buckle sideways or the entire cross-section buckles torsionally

bending failure by local buckling: where the flange or web is so slender as to buckle locally

local yield: caused by concentrated loads, such as at the beam's point of support

shear failure: where the web fails. Slender webs will fail by buckling, rippling in a phenomenon termed tension field action, but shear failure is also resisted by the stiffness of the flanges

buckling or yielding of components: for example, of stiffeners used to provide stability to the I-beam's web.

Z Channel Steel is a common cold-formed thin-walled steel, generally between 1.6-3.0mm in thickness and 120-350mm in section height. The processing material is hot rolled (painted) and galvanized. The processing standards are implemented in accordance with GB50018-2002. Z Channel Steel is usually used in large steel structure workshops. The processing length and hole are produced according to processing requirements.

Cold-formed Z Channel Steel has the advantages of adjustable size and high compressive strength. It is widely used in automobiles, railway vehicles, building doors and windows, transportation, shelves, electrical cabinets, highway guardrails, building steel structures, containers, steel formwork and scaffolding, and solar energy Support shipbuilding, bridges, power transmission towers, steel sheet piles, cable trays, agricultural machinery, furniture, storage, guide rails, keel steel, vegetable greenhouses, pipeline supports, municipal construction and other fields.

Z Channel Steel and Z Girt Structural Steel.  span provides standard, even-profile Z purlins and Z girts as well as custom . profiles and punching patterns. Z Channel Steel are also available with other depths and flange widths,which can be used for roof purlin and wall purlin.

Different from C purlins, Z Channel Steel can overlap, ride on another, this makes the difference of the joint from C section. For same height, Z Channel Steel needs more material than C purlin, in which result the price of the costs a bit higher.

A kind of common cold bending thin-wall steel, generally between 1.6 -3.0 mm, Processing materials for hot rolling (paint), galvanized. Processing according to perform GB50018-2002 standard. Usually applied in large steel structure factory building,metal roof. Processing length and hole is according to the requirements of processing production.

Z Channel Steel advantages:

(1). Design according to customers' requirements

(2). Manufacture under complete quality certification system--ISO9001

(3). Installation with instruction of experienced engineers

(4). Easy to assemble and dismantle

(5). Eco-friendly material: Used for several times and be recycled

(6). Shorter construction period, longer using time

(7). High strength and stiffness, high weight bearing.

Our service:

(1)One professional sales team will offer you full set service,no matter before or after-sales;

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