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1.Whether the I-shaped steel is ordinary or light, because the cross-sectional size is relatively high and narrow, the two main sleeves of the moment of inertia cross-section are greatly different, so it usually can only directly use the internal bending components of the aircraft on the network or It can be made into lattice components. It is not suitable for axial compression members or members perpendicular to the web or bending members, so that its application range is very limited.
2. H-shaped steel is an economical cutting profile (others include cold-formed thin-walled steel and special-shaped steel plates, etc.). Due to the reasonable cross-sectional shape, the steel can be made more efficient and the cutting ability can be improved. Different from the general i-shaped steel, the flange of the h-shaped steel is widened, and the inner and outer surfaces are usually parallel, which is convenient for the connection of high-strength bolts and other parts. Its size constitutes a reasonable series, complete models, easy to design and select. (Except for I-beams of lifting beams)
3. The flanges of H-shaped steel are of equal thickness, with rolling sections and combined sections welded by three steel plates. I-beams are all rolled sections. Due to poor production technology, the slope of the flange inner edge is 1:10. The rolling of h-beam is different from ordinary I-beam. Only one set of transverse coils is used. Because the flange is wide and has no slope (or the slope is small), it is necessary to add a set of vertical rolls for simultaneous rolling. The rolling process and equipment are more complicated than ordinary rolling mills. The rolling height of h-shaped steel that can be produced in China is 800mm, which exceeds the welded composite section.
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Galvalume Steel Coil is a kind of Alloy-Coated Steel Sheet widely used in building materials, household appliances,automobiles, environment, machinery, ships and many other fields. The surface coating of galvalume steel sheet is composed of 55% aluminium, 43.5% zinc and a small amount of other elements. 1. Heat reflectivity: Aluminum-coated galvanized steel sheet has a high thermal reflectivity, which is twice as high as galvanized steel sheet. It is often used as insulation material. 2. Heat resistance: Aluminum-zinc alloy steel sheet has good heat resistance and can withstand high temperatures of more than 300 degrees Celsius. 3. Corrosion resistance: The corrosion resistance of aluminized and galvanized steel coils is mainly due to the protective function of aluminium and aluminium. When zinc is abraded, aluminium forms a dense layer of alumina,which prevents further corrosion of corrosion-resistant substances. 4. Economy: Because the density of 55% Al-Zn is smaller than that of Zn, the area of galvanized steel sheet is more than 3% larger than that of galvanized steel sheet under the same weight and thickness of gold plating. 5. Easy to paint: Aluminum-coated galvanized sheet and paint have excellent adhesion and can be painted without pretreatment and weathering treatment. 6. Aluminum-galvanized steel sheet has a silver-white gorgeous surface.Read more
Galvanized corrugated steel sheet is made of galvanized steel. It is also known as corrugated GI sheet. It combines the strength of steel with the smooth surface of zinc coating. Due to its durability and beautiful appearance, it is widely used in many industry, especially roofing and wall panels. Compared to color coated steel sheet, GI corrugated steel sheet is more cost-effective. The available thickness is from 0.12 to 1.5 mm, and the width varies from 600 to 2,000 mm. Welcome to contact us for details!Read more
Materials: low carbon steel wire Specification: 1.net width: 0. 5m-2.5m.2.Wire diameter (Before coated - ater coated);: 1.0-3.0 mm 3.hole size: 50x50 50x100(mm). Advantage: Beautiul, durable, easy to transport and nstall, with good precision fltering. load strength. Uses: used in highway, railway, airport, residential community. seaport, feeding and husbandry protection. Manufacturing: steel wire coated after welding can also be indiviuallyl plated, hot dipped and PVC coated. Methodology: high qualty iron wire welded to PVC or PE, PP powder coating surface treatment after curing. has a strong ad- hesion, good corrosion rsisance, bright color, etc.Read more
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