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Galvanized seamless pipe

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.

Classification :

Galvanized pipe

WhatsApp : +8615688862221

E-mail : QSsteel@tsingshanh.com

PRODUCT DETAILS

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.

Product Name	Hot-Dip Galvanized Seamless Steel Pipe
Length	1-12m or as required
Diameter	10.3mm to 1219mm or as required
Standard	GB/T 8163 (Base seamless pipe), GB/T 17395 (Dimensions), with hot-dip galvanizing per GB/T 3091 or equivalent.
Technique	Hot-Dip Galvanized (Process applied to seamless base pipe)
Surface Treatment	As-galvanized spangle surface. Clean, blasting, and painting are available upon request.
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.
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.
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.

Packing and shipping

Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.

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. ‌

CUSTOMER FEEDBACK

Exporting our products to more than 100 countries and regions worldwide.All the customers give good appreciation to our products.We are glad to be your good partner. Warmly welcome you to visit our factory!

FACTORY WORKSHOP

Factory workshop

APPLICATION FIELD

Construction Project

Marine Exploration

Automobile Manufacturing

Architectural Engineering

Aerospace

Solar Energy

FAQ

Q: Do you support custo

A: Yes. We provide one-stop deep processing services, including slitting, flattening, cutting, bending, welding, polishing, drilling, hot-dip galvanizing and color coating. Custom sizes, special thicknesses and surface treatments are all acceptable.

Q: Can you provide third-party inspection reports?

A: Yes. We support SGS, BV, TUV and other third-party inspections. Each batch is equipped with official factory MTC mill test certificate, chemical composition and mechanical property reports.

Q: How to choose the right steel grade for my project?

A: Carbon steel is suitable for general structure and fluid transportation; galvanized/color coated steel for anti-rust building enclosure; stainless steel for corrosion-resistant, sanitary and marine environments. Our professional sales team can recommend the most cost-effective solution according to your usage scenario, temperature, corrosion environment and load requirements.

Q: What standards do your steel products comply with?

A: All products support international mainstream standards, including GB, ASTM, AISI, JIS, DIN, EN. Common grades such as Q235B, Q355B, 20#, 45#, 304, 316L, 430 are fully available and can meet global engineering and procurement standards.

Q: What steel products do you supply?

A: We provide a full range of steel materials, including carbon steel, stainless steel, galvanized steel, color coated steel, steel plates, steel coils, steel pipes and customized steel profiles. Products are widely used in construction, machinery, petrochemical, shipbuilding, automobile and engineering fields.

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