Galvanized spiral steel pipe
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Galvanized seamless steel pipe is a type of pipe made by galvanizing seamless steel pipe. It combines the high strength of seamless steel pipe with the corrosion resistance of the galvanized layer, and is widely used in construction, industry and other fields.
Product name：
Galvanized steel pipe
Material：
Q335B
Warehouse：
Tianjin
Surface treatment：
Hot-dip galvanizing
Keyword：
Galvanized spiral steel pipe
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Details description
Production Process
Low-carbon or low-alloy structural steel strips are first coiled into pipe blanks at a certain helical angle. Double-sided submerged arc welding is used to weld them into spiral steel pipes, which are then galvanized. Galvanizing methods mainly include hot-dip galvanizing and cold galvanizing. Cold galvanizing, due to its low zinc coating and poor corrosion resistance, has gradually been discontinued. Hot-dip galvanizing involves pickling and derusting the steel pipe, cleaning it in an ammonium chloride or zinc chloride aqueous solution, and then sending it into a hot-dip galvanizing tank, where the molten metal reacts with the iron matrix to produce an alloy layer, bonding the matrix and coating.
Performance Characteristics
Strong Corrosion Resistance: The zinc layer effectively blocks corrosive substances in the atmosphere, water, and soil, giving the pipes excellent corrosion resistance and suitability for harsh environments.
Long Service Life: Under normal conditions, it can be used for more than 50 years, reducing the cost and trouble of frequent pipe replacement.
Easy Maintenance: It does not require frequent anti-corrosion maintenance, reducing labor and material costs.
Good Abrasion Resistance: The galvanized layer has high hardness and is not easily damaged during transportation, effectively protecting the pipe body.
Excellent Seismic Performance: The steel pipe has high strength and good seismic performance, allowing for stable use in earthquake-prone areas.
Common Specifications: The pipe diameter range is wide, commonly including DN25, DN40, DN50, DN80, DN100, DN150, DN200, DN300, DN400, DN500, etc. The length is usually 6-12 meters, and the material is mostly Q235B, Q355B, etc.
Application Areas
Construction Engineering: It can be used in building structures for support frames, stair railings, interior decoration, etc., and is also often used in water supply, drainage, heating, and air conditioning pipe systems.
Oil and Gas Industry: Suitable for oil well pipes, oil and gas storage and transportation pipelines, etc., it can resist corrosion from the transported medium and external environmental damage.
Water Treatment Industry: Used in water treatment for water supply and drainage pipe systems, it can prevent rust and scaling inside the pipes, ensuring safe and stable water quality.
Coal Mining Industry: Often used in underground ventilation and drainage systems in coal mines, as well as for the support and protection of safety equipment, allowing for reliable operation in humid and corrosive environments.
Highway Engineering: It can be used as street light brackets, traffic signal light brackets, and guardrail brackets, etc., and its weather resistance can withstand mechanical damage and climate change.
Bridge Engineering: Used in bridge support and guardrail systems, providing stable support, and its corrosion resistance can extend the service life of the bridge.
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Seamless steel pipe manufacturing
3PE anti-corrosion pipe manufacturing
Spiral steel pipe manufacturing
Application fields
Petrochemicals
Petrochemicals
Aerospace
Aerospace
Energy equipment
Energy equipment
Oil/gas/water pipelines
Oil/gas/water pipelines
Building construction
Building construction
Dredging & piling works
Dredging & piling works
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FAQ
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