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G550 Galvanized Steel Pipe refers to high-strength structural pipes manufactured from G550 grade galvanized steel coils or sheets through forming and welding processes, followed by hot-dip galvanizing. The "G550" designation indicates the base material's minimum yield strength of 550 MPa, making it part of the ultra-high-strength galvanized steel series. This product combines exceptional mechanical properties with superior corrosion resistance, suitable for heavy-duty structural and engineering applications.
DX51D Galvanized steel pipe has low melting point, good fluidity, easy plastic processing and welding, and is resistant to atmospheric corrosion.
Compared with ordinary black (non-galvanized) seamless pipes, hot-dip galvanized seamless pipes offer superior corrosion protection, extending service life in harsh environments and reducing maintenance costs.
Galvanized pipe Hot diped, Electroplating diped
Hot-dip galvanized steel pipes are widely used in the manufacturing industries of construction, machinery, coal mining, chemical industry, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, shed construction, etc.
Hot dip galvanized pipe is to make molten metal react with iron substrate to produce alloy layer, so that the substrate and coating can be combined. Hot galvanizing refers to pickling the steel pipe first. In order to remove iron oxide on the steel pipe surface, after pickling, the steel pipe is cleaned in ammonium chloride or zinc chloride aqueous solution or mixed ammonium chloride and zinc chloride aqueous solution tank, and then sent to the hot dip tank. Hot dip galvanizing has the advantages of even coating, strong adhesion and long service life.
Galvanized roofing sheets, also available as cut sheet and plate, are profiled building panels roll-formed and cold bent from hot-dip galvanized steel coils. The zinc coating forms a protective barrier on steel surface, providing reliable rust and corrosion resistance. The material features light weight, good rigidity and easy processability, which can be cut, bent and drilled conveniently for on-site installation.
Aluminum roofing sheets, also available as cut sheet and plate, are profiled building panels processed by roll forming and cold bending from premium aluminum alloy coils. The aluminum alloy forms a dense natural oxidation protective film, endowing the sheets with excellent anti-corrosion and anti-oxidation performance. Featuring light weight and superior ductility, the product is easy to cut, bend, drill and install on-site. It delivers far better rust resistance than ordinary galvanized steel sheets in humid and mild salt spray environments, avoiding rust problems during long-term outdoor use.
01. SMOOTHNESS
No composite indentation, no residual stress, no deformation after shearing.
Characteristics：Weather proof; heating insulation; fireproof; anti-rust; sound insulation; long life span: more than 20 years.
Corrosion Resistance: the aluzinc coating surface protects the base steel not only by providing barrier to corrosion elements, but
also by the sacrificial nature of the coating.
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