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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 :

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.

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.

 

CUSTOMER VISIT

All products strictly adhere to internationally recognized standards such as GB, ASTM, EN, JIS, and DIN, and are suitable for overseas procurement needs in various fields such as food packaging, home appliance manufacturing, infrastructure engineering, machinery processing, petrochemicals, and marine engineering. Our products are exported to more than 80 countries and regions in Southeast Asia, the Middle East, Africa, Europe, and Latin America.

FACTORY WORKSHOP

Taking product quality as the guide, constantly seeking breakthroughs, achieving optimization and upgrading, and striving to create high-quality steel products are our constant pursuits. The products have passed national safety 3C certification, EU CE certification and ISO9001 international quality system certification.

Factory workshop

Factory workshop

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Factory workshop

PARTNER

shrn steel
shiheng speclal steel
ansteel
ansteel
Hangzhou Iron and Steel
Benxi Steel
Tianjin Iron and Steel
Wuhan Iron and Steel
Shagang Group
Panzhihua Steel
Tangshan Iron and Steel
Baotou Steel
Maanshan Iron and Steel Group
Guangzhou Iron and Steel
Valin Steel
Laiwu Steel Group

APPLICATION AREAS

Construction Project

Construction Project

Marine Exploration

Marine Exploration

Automobile Manufacturing

Automobile Manufacturing

Architectural Engineering

Architectural Engineering

Aerospace

Aerospace

Solar Energy

Solar Energy

Bridge Construction

Bridge Construction

Wind Power

Wind Power

FAQ

Q:How about your product quality?

Q:How about your product quality?

A:All products are produced in accordance with international standards, with strict raw material inspection, production monitoring and finished product testing. We provide MTC (Mill Test Certificate), third-party inspection reports and support customer factory audit.
A:All products are produced in accordance with international standards, with strict raw material inspection, production monitoring and finished product testing. We provide MTC (Mill Test Certificate), third-party inspection reports and support customer factory audit.
Q:Can you provide free samples?

Q:Can you provide free samples?

A:We can provide free small size samples for quality inspection. Customers only need to bear the freight cost. Sample orders and formal bulk orders are both welcome.
A:We can provide free small size samples for quality inspection. Customers only need to bear the freight cost. Sample orders and formal bulk orders are both welcome.
Q:What steel grades and standards do you support?

Q:What steel grades and standards do you support?

A:Our products comply with international mainstream standards, including GB, ASTM, AISI, JIS, DIN, EN. Common grades include Q235B, Q355B, 20#, 430, 304, 316L, 2205, DX51D, SGCC and more. Full material test certificates can be provided.
A:Our products comply with international mainstream standards, including GB, ASTM, AISI, JIS, DIN, EN. Common grades include Q235B, Q355B, 20#, 430, 304, 316L, 2205, DX51D, SGCC and more. Full material test certificates can be provided.
Q:Can you provide customized size and surface treatment?

Q:Can you provide customized size and surface treatment?

A:Yes. All steel products can be customized according to customer requirements, including thickness, width, length, surface finish (polished, brushed, galvanized, color coated), cutting, slitting, bending and deep processing. We support OEM and ODM service.
A:Yes. All steel products can be customized according to customer requirements, including thickness, width, length, surface finish (polished, brushed, galvanized, color coated), cutting, slitting, bending and deep processing. We support OEM and ODM service.
Q:What products do you mainly supply?

Q:What products do you mainly supply?

A:We mainly supply carbon steel plates, carbon steel coils, carbon steel pipes, stainless steel plates, stainless steel coils, stainless steel pipes, galvanized steel plates, galvanized steel coils, color coated steel coils and other full-series steel products. Customized sizes and various steel grades are available to meet construction, manufacturing, piping and engineering procurement needs.
A:We mainly supply carbon steel plates, carbon steel coils, carbon steel pipes, stainless steel plates, stainless steel coils, stainless steel pipes, galvanized steel plates, galvanized steel coils, color coated steel coils and other full-series steel products. Customized sizes and various steel grades are available to meet construction, manufacturing, piping and engineering procurement needs.

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