Zinc Coated Steel Pipe - Corrosion Resistant Galvanized Steel Tubing for Industrial Use

Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$610 1-49 ton Base price

$583 50-99 ton 4.4% off

$570 ≥100 ton 6.6% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 610.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Zinc Coated Steel Pipe

Property	Parameter	Description
Product Name	Zinc Coated Steel Pipe	Hot-dip galvanized carbon steel pipe
Material Grade	Q235B / ASTM A53 Grade B / SS400	International grade equivalents
Standard Compliance	ASTM A53, BS 1387, EN 10255, GB/T 3091	Meets major international standards
Manufacturing Process	ERW / Seamless + Hot-Dip Galvanizing	Welded or seamless with zinc coating
Carbon (C)	≤0.25%	Carbon content for formability
Manganese (Mn)	≤1.35%	Improves strength and hardness
Phosphorus (P)	≤0.035%	Controlled for ductility
Sulfur (S)	≤0.035%	Low sulfur for weldability
Zinc Coating Thickness	60 - 550 g/m²	Per ASTM A123 / ISO 1461 standards
Tensile Strength	≥330 MPa	Minimum tensile strength per ASTM A53
Yield Strength	≥205 MPa	Minimum yield strength
Elongation	≥23%	Ductility in 50mm gauge length
OD Range	21.3mm - 508mm (1/2'' - 20'')	Available outer diameter options
Wall Thickness	1.0mm - 16mm	Standard and custom thickness
Length	5.8m, 6m, 12m or custom	Standard and custom lengths available
Surface Finish	Hot-Dip Galvanized / Pre-Galvanized	Bright zinc coating with smooth finish
Application	Water supply, fencing, scaffolding, construction	Typical application industries
Certification	EN 10204 3.1, ISO 9001, API 5L	Quality certifications provided
Packaging	Bundled with steel strips, plastic caps on ends	Standard export packaging
MOQ	5 tons	Minimum order quantity

Zinc Coated Steel Pipe - Corrosion Resistant Galvanized Steel Tubing for Industrial Use

Zinc coated steel pipe delivers outstanding anti-corrosion properties by applying a protective zinc layer to carbon steel substrates, making it the preferred choice for water distribution, structural frameworks, and outdoor construction projects. Whether you need hot-dip galvanized tubing for municipal infrastructure or pre-galvanized pipe for mechanical applications, this product offers exceptional durability against corrosive environments while maintaining cost-effective performance. Our mill-direct supply ensures consistent zinc coating quality and prompt delivery for contractors, distributors, and project engineers worldwide.

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What Is Zinc Coated Steel Pipe?

Zinc coated steel pipe is a carbon steel tube that has been treated with a zinc protective layer through hot-dip galvanizing or electro-galvanizing processes. The zinc barrier acts as a sacrificial anode, preventing the underlying steel from oxidizing even when the surface coating is scratched or damaged. This galvanized steel tubing is manufactured according to ASTM A53/A53M-22 and EN 10240:2016, ensuring reliable performance across demanding service conditions.

Zinc Coated Steel Pipe Technical Specifications

Our galvanized pipe inventory covers a comprehensive range of dimensions and coating weights to match diverse project requirements:

Parameter	Specification
Outside Diameter	1/2" to 12" (DN15–DN300)
Wall Thickness	SCH 10 to SCH 80
Zinc Coating Weight	300–600 g/m² per ASTM A123/A123M
Base Material	Q235B, Q345B, ASTM A53 Grade B (yield strength ≥ 240 MPa)
Tensile Strength	≥ 415 MPa (ASTM A53 Gr.B)
Standards	ASTM A53, BS 1387, EN 10255, JIS G3444
Length	5.8m, 6m, or custom cut-to-length
End Finish	Plain, beveled, threaded and coupled

Key Applications of Galvanized Steel Tubing

Water supply and plumbing systems – Potable water lines, fire sprinkler networks, and irrigation pipelines
Structural and fencing – Greenhouse frames, guardrails, scaffolding, and chain-link fence posts
Oil and gas transmission – Low-pressure gas distribution and oilfield gathering lines
HVAC and mechanical – Conduit piping, ventilation supports, and equipment framing

Why Choose Our Zinc Coated Steel Pipe

With over 15 years of export experience, we supply galvanized steel tubing to more than 50 countries. Every batch undergoes zinc coating adhesion testing per ASTM A90, hydrostatic testing to 2.5 MPa, and full dimensional inspection. We hold ISO 9001:2015 certification and provide EN 10204 Type 3.1 mill test certificates with each shipment, giving buyers complete traceability from raw material to finished product.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ is 5 metric tons per size. For mixed-container orders combining multiple specifications, we accept a total minimum of 10 metric tons.

Do you provide material test certificates?

Yes. Every order ships with EN 10204 Type 3.1 certificates covering chemical composition, mechanical properties, zinc coating weight, and hydrostatic test results.

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What is the typical delivery time?

Stock items ship within 7–10 business days. Custom-produced zinc coated steel pipe with specific coating weights or non-standard lengths requires 20–30 days from order confirmation.

Can you cut to custom sizes?

Absolutely. We offer precision cut-to-length service, threading, grooving, and beveling. Custom lengths from 0.5m to 12m are available upon request with a tolerance of ±5mm.

Get a Competitive Quote for Zinc Coated Steel Pipe

Ready to secure factory-competitive pricing on galvanized steel tubing for your next project? Contact our sales team today with your required specifications—diameter, wall thickness, coating standard, and quantity. We respond to all inquiries within 12 hours with a detailed quotation including FOB, CFR, or CIF terms tailored to your destination port.

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Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Wei Chen

Singapore

2025-02-11

Acceptable Galvanized Pipe Quality, Packaging Issue Resolved

Ordered 8 tons of 1-1/2" and 2" galvanized pipe, plain ends, for distribution to construction clients in Southeast Asia. Material quality itself met JIS G3444 requirements and zinc coating was uniform with no bare spots observed. However, upon arrival at Singapore port, approximately 15% of bundles had damaged plastic end caps, exposing pipe ends to moisture during transit. Raised this with the supplier immediately and they responded within a few hours, offering partial credit for any end treatment costs we incurred. Issue was documented and they confirmed updated packaging protocol for future orders. Underlying product quality is acceptable — we'll likely trial another order to see if the packaging improvement holds.

Chris Martin

Canada

2025-03-07

Excellent Threaded Galvanized Pipe for Gas Distribution Network

Procured 20 tons of 1" to 2-1/2" threaded and coupled galvanized steel pipe for a low-pressure natural gas distribution project in Ontario. All pipe was supplied with NPT threading and the coupling fit was verified by our field crews without any rework required — a detail that matters significantly on tight installation schedules. EN 10204 3.1 certificates covered chemical composition, tensile strength at 438 MPa, and zinc coating weight at 395 g/m². We compared pricing with two domestic distributors and saved approximately 11% by sourcing direct from this mill on FOB terms. Cleared Canadian customs without documentation issues. Already submitted our next inquiry for a 25-ton follow-up order.

William Taylor

Australia

2025-03-30

Reliable Galvanized Pipe for Offshore Support Structure

Ordered 10 tons of 4" and 6" galvanized pipe, SCH 80, for structural support frames on a coastal marine facility in Queensland. Zinc coating weight at 380 g/m² was adequate for our application, though we had originally requested 450 g/m² minimum — the sales team clarified this upfront before production and we adjusted our spec accordingly, which we appreciated. Hydrostatic test certificates and ASTM A53 compliance documentation were complete and accepted by our client's certifying authority. Delivery was 26 days from order, fitting within our project window. Would consider this supplier again for future orders where standard coating weights are sufficient.