Galvanized Steel Pipe - Corrosion-Resistant Carbon Steel Tubing for Structural & Industrial Use

Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$550 1-49 ton Base price

$525 50-99 ton 4.5% off

$515 ≥100 ton 6.4% 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$ 550.00

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 Galvanized Steel Pipe

Property	Parameter	Description
Product Name	Galvanized Steel Pipe	Hot-dip or pre-galvanized carbon steel pipe
Base Material	Q235B / ASTM A53 / SS400	Low-carbon steel substrate
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 pipe with zinc coating
Zinc Coating Thickness	60 - 550 g/m²	Per ASTM A123 / ISO 1461
Carbon (C)	≤0.25%	Carbon content for formability
Manganese (Mn)	≤1.35%	Improves strength and toughness
Phosphorus (P)	≤0.035%	Controlled for ductility
Sulfur (S)	≤0.035%	Low sulfur for weldability
Tensile Strength	≥330 MPa	Minimum tensile strength per ASTM A53 Grade A
Yield Strength	≥205 MPa	Minimum yield strength
Elongation	≥25%	Ductility in 50mm gauge length
OD Range	DN15 - DN200 (21.3mm - 219.1mm)	Available nominal diameter options
Wall Thickness	1.0mm - 10.0mm	Light, medium, and heavy series
Length	5.8m - 12m or custom	Standard and custom lengths available
Application	Water supply, fencing, scaffolding, structural	Typical application scenarios
Certification	EN 10204 3.1, ISO 9001, ASTM A53	Quality certifications provided
Packaging	Bundled with steel strips, plastic caps on ends	Standard export packaging
MOQ	5 tons	Minimum order quantity

Galvanized Steel Pipe - Corrosion-Resistant Carbon Steel Tubing for Structural & Industrial Use

Galvanized steel pipe is a zinc-coated carbon steel tube engineered to deliver outstanding anti-corrosion properties and robust structural integrity for construction, plumbing, fencing, and industrial piping systems. Manufactured by immersing carbon steel pipe in molten zinc at approximately 450°C, the resulting metallurgical bond creates a protective barrier that significantly extends service life—even in harsh outdoor and high-moisture environments. Whether you are sourcing materials for water transmission lines, scaffolding frameworks, or greenhouse structures, galvanized steel pipe provides a proven, cost-effective solution trusted by contractors and engineers worldwide.

What Is Galvanized Steel Pipe?

Galvanized steel pipe refers to carbon steel tubing that has been treated through a hot-dip galvanizing process conforming to ASTM A123/A123M or ASTM A153. The zinc coating, typically ranging from 300 g/m² to 600 g/m² depending on pipe wall thickness, acts as both a physical shield and a sacrificial anode—meaning the zinc corrodes preferentially to protect the underlying steel substrate from rust and oxidation.

Galvanized Steel Pipe Technical Specifications

Our galvanized steel pipe is produced in accordance with ASTM A53/A53M Grade B, BS 1387, and EN 10255 standards. Key parameters include:

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Property	Specification
Base Material	Q235B / ASTM A53 Gr.B carbon steel
Outer Diameter	1/2″ – 12″ (21.3 mm – 323.9 mm)
Wall Thickness	1.0 mm – 16.0 mm (SCH 20 to SCH 80)
Zinc Coating Weight	≥ 300 g/m² (hot-dip per ASTM A123)
Yield Strength	≥ 240 MPa (ASTM A53 Gr.B)
Tensile Strength	≥ 415 MPa (ASTM A53 Gr.B)
Manufacturing Method	ERW (Electric Resistance Welded) / Seamless
Length	5.8 m, 6 m, or 12 m (custom lengths available)

Key Applications of Galvanized Carbon Steel Tubing

Water supply & plumbing systems: Zinc-coated pipes serve critical roles in potable water distribution and fire sprinkler networks.
Structural & scaffolding frameworks: Superior tensile properties make them the preferred choice for temporary and permanent load-bearing structures.
Fencing & greenhouse construction: Exceptional durability against corrosion ensures reliable outdoor performance over 20+ years.
Oil & gas transmission: Galvanized piping finds extensive application in low-pressure gas distribution and industrial fluid transport.

Why Choose Our Galvanized Steel Pipe?

Mill-direct pricing: Factory-competitive rates with no intermediary markups, supporting orders from 1 ton to full container loads.
Strict quality control: Every batch undergoes hydrostatic testing, zinc coating adhesion testing per ASTM A90, and dimensional inspection.
Full certification package: Mill Test Certificates (MTC) per EN 10204 3.1, SGS/BV third-party inspection available upon request.
Global export experience: 15+ years supplying galvanized pipe to Southeast Asia, the Middle East, Africa, and South America.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

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

Do you provide material test certificates?

Yes. Each shipment includes Mill Test Certificates compliant with EN 10204 Type 3.1, covering chemical composition, mechanical properties, and zinc coating weight verification.

What is the typical delivery time?

Standard galvanized steel pipe sizes ship within 7–15 business days from order confirmation. Custom specifications or large-volume orders typically require 20–30 days for production.

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Can you cut to custom sizes?

Absolutely. We offer precision cutting, threading, grooving, and end-beveling services. Custom lengths from 0.5 m to 12 m are readily accessible with tolerances of ±5 mm.

Get a Competitive Quote for Galvanized Steel Pipe

Ready to secure value-driven pricing on premium-grade galvanized steel pipe for your next project? Contact our sales team today with your required specifications—including outer diameter, wall thickness, standard, and quantity—and receive a detailed quotation within 24 hours. We are committed to delivering top-tier galvanized tubing backed by responsive logistics and dedicated technical support.

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Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Chris Martin

Canada

2025-02-21

Acceptable Galvanized Pipe Quality — Coating Issue Identified and Resolved

We ordered 8 tons of galvanized ERW pipe, 1.5-inch OD, SCH 40, ASTM A53 Gr.B, for an industrial plumbing project in Ontario. On arrival, our inspector identified that approximately 6% of pieces in one bundle showed uneven zinc coating — visually thinner patches on one side, though still above the 300 g/m² minimum per spot testing. We documented and reported this to the supplier with photos. To their credit, the technical team responded within one business day, acknowledged the issue, and offered a partial credit applied to our next order, which we accepted. Mechanical properties on the MTC were fully compliant — yield at 252 MPa, tensile at 421 MPa. Delivery was 16 business days, within the quoted range. The resolution process was handled professionally, which gives us confidence to place a follow-up trial order. Coating consistency is the area we would want to see improved.

William Taylor

Australia

2025-03-14

Excellent Galvanized Pipe for Coastal Fencing and Structural Use

Ordered 11 tons of hot-dip galvanized pipe, 2-inch and 3-inch OD, 6-meter lengths, Q235B base material, for coastal fencing and structural support installations in Western Australia. Coastal salt exposure demands high zinc coating integrity — we specified 380 g/m² minimum and the MTC confirmed 395–430 g/m² across all tested samples. Dimensional tolerances were tight and consistent; no rejections during our incoming QC. Custom cutting to 3-meter lengths was requested for 40% of the order and was executed with ±3 mm tolerance, better than the quoted ±5 mm. We also requested BV third-party inspection, which was coordinated smoothly before shipment. Total lead time was 17 business days for the custom-cut portion. Compared to our previous Australian-based distributor, landed cost was 11% lower. This will be a regular supply relationship going forward.

Wei Chen

Singapore

2025-04-07

Reliable Galvanized Pipe Supply for Southeast Asia Distribution

We placed an order for 35 tons of galvanized steel pipe across multiple sizes — 1-inch, 1.5-inch, and 2-inch OD, 6-meter lengths, ASTM A53 Gr.B — for redistribution to construction clients in Malaysia and Indonesia. Mill Test Certificates and packing lists were accurate and matched the physical shipment. Zinc coating uniformity was consistent across the lot, which our downstream clients have noted positively. One minor point: two bundles in the 1-inch size had slight surface rust on the pipe ends where cut edges were exposed — not a coating defect but worth mentioning for future packaging improvement. The supplier's team responded within the same business day when we raised this. Pricing was competitive for container-load quantities. Delivery in 14 business days met our logistics window. We will continue sourcing for our regional distribution business.