Galvanized seamless pipe
Classification :
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Product Details
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.
Characteristics of Hot-Dip Galvanized Seamless Pipe
Superior Corrosion Protection
The zinc coating provides both a barrier and cathodic protection, offering excellent resistance to atmospheric corrosion, moisture, and many industrial environments. This significantly increases the service life compared to uncoated pipes.
High Strength & Durability
The pipe retains the high strength, pressure resistance, and durability of the underlying seamless steel pipe. The hot-dip galvanizing process does not generally compromise the base metal's mechanical properties.
Long Service Life & Low Maintenance
In many environments, galvanized seamless pipes can have a service life of several decades with minimal to no maintenance, offering excellent life-cycle cost-effectiveness.
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Product Name |
Hot-Dip Galvanized Seamless Steel Pipe |
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Length |
1-12m or as required |
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Diameter |
10.3mm to 1219mm or as required |
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Standard |
GB/T 8163 (Base seamless pipe), GB/T 17395 (Dimensions), with hot-dip galvanizing per GB/T 3091 or equivalent. |
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Technique |
Hot-Dip Galvanized (Process applied to seamless base pipe) |
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Surface Treatment |
As-galvanized spangle surface. Clean, blasting, and painting are available upon request. |
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Thickness tolerance |
The wall thickness tolerance of the base seamless pipe is governed by its manufacturing standard (e.g., GB/T 8163). Common tolerances range from ±12.5% to ±15% of the nominal wall thickness, depending on pipe grade and manufacturing method. The galvanizing process adds a coating but does not alter the base pipe's wall thickness tolerance. |
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Zinc Coating Mass |
Standard Range: 200 - 600 g/m² (Total both sides). Common commercial grades are 275 g/m² and 350 g/m². Available as per customer specification. |
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Export packing |
Waterproof paper and steel strip packed. Standard seaworthy export packing suitable for all modes of transport, or as required. |
Galvanized steel pipe has a welded steel pipe with a hot dip or electro galvanized layer on the surface. Galvanization can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized steel pipe has a wide range of uses, in addition to being used as a pipeline for general low pressure fluids such as water, gas and oil, it is also used as an oil well pipe and oil pipeline in the petroleum industry, especially in the marine oil fields, as an oil heater, condensation cooler and coal distillation and oil washing exchanger pipe for chemical coking equipment, and as a support frame pipe for trestle piles and mining pits, etc.
Custom-made irregular-shaped tubes
Irregular-shaped tubes are hollow steel materials with non-standard irregular cross-sections, which are different from ordinary round tubes. We support customized production based on drawings and samples. The cross-section, material, wall thickness, and length can be adjusted according to working conditions to reduce subsequent cutting and welding processes and improve the overall strength and assembly accuracy of the components.
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Application Areas
Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments.
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Focused on the supply and custom processing of metal materials, we leverage reliable sourcing, consistent quality, and efficient service to help clients reduce costs and enhance efficiency, create opportunities for our employees, and empower the development of the industry as a whole.
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