ASTM A53 Galvanized Steel Pipe - Hot-Dipped Carbon Steel Tubing for Structural and Mechanical Use

Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$750 1-49 ton Base price

$715 50-99 ton 4.7% off

$700 ≥100 ton 6.7% 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$ 750.00

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 ASTM A53 Galvanized Steel Pipe

Property	Parameter	Description
Product Name	ASTM A53 Galvanized Steel Pipe	Hot-dip galvanized carbon steel pipe for general purposes
Material Grade	ASTM A53 Grade A / Grade B	Two grades available based on mechanical properties
Standard Compliance	ASTM A53, ASME SA53, BS 1387	Meets major international pipe standards
Manufacturing Process	ERW (Type F/E) / Seamless (Type S)	Electric resistance welded or seamless options
Galvanizing Method	Hot-Dip Galvanized per ASTM A123	Zinc coating for corrosion protection
Zinc Coating Thickness	≥610 g/m² (1.4 oz/ft²)	Minimum coating weight per ASTM A53
Carbon (C)	≤0.25% (Gr.A) / ≤0.30% (Gr.B)	Carbon content per grade specification
Manganese (Mn)	≤0.95% (Gr.A) / ≤1.20% (Gr.B)	Improves strength and hardenability
Phosphorus (P)	≤0.05%	Controlled for ductility and weldability
Sulfur (S)	≤0.045%	Low sulfur for improved weldability
Tensile Strength	≥330 MPa (Gr.A) / ≥415 MPa (Gr.B)	Minimum tensile strength per ASTM A53
Yield Strength	≥205 MPa (Gr.A) / ≥240 MPa (Gr.B)	Minimum yield strength per grade
Elongation	≥29.5% (Gr.A) / ≥29.5% (Gr.B)	Ductility in 50mm gauge length
OD Range	1/2'' - 26'' (21.3mm - 660mm)	Available nominal pipe size range
Wall Thickness	SCH 10 - SCH 160 / STD / XS / XXS	Standard schedule and custom thickness
Length	5.8m, 6m, 12m or custom	Random or fixed length available
End Finish	Plain End, Beveled, Threaded & Coupled	Multiple end processing options
Application	Water, steam, gas lines, fencing, structural	General purpose and pressure applications
Certification	EN 10204 3.1, ISO 9001, API	Mill test certificate provided
MOQ	5 tons	Minimum order quantity

ASTM A53 Galvanized Steel Pipe - Hot-Dipped Carbon Steel Tubing for Structural and Mechanical Use

ASTM A53 galvanized steel pipe is a hot-dip zinc-coated carbon steel tubular product engineered for structural, mechanical, and pressure applications. Manufactured in compliance with ASTM A53/A53M-22, this pipe delivers exceptional durability against corrosive environments while maintaining robust mechanical properties. It serves critical roles in water transmission systems, building frameworks, scaffolding, and general industrial piping where long service life and reliable corrosion protection are essential. As a trusted steel pipe supplier with over 15 years of export experience, we provide mill-direct ASTM A53 galvanized pipe with full traceability and competitive factory pricing for global B2B buyers.

ASTM a53 galvanized steel pipe supplier

What Is ASTM A53 Galvanized Steel Pipe?

ASTM A53 galvanized steel pipe refers to carbon steel pipe conforming to ASTM A53 specification that has been coated with a protective zinc layer through the hot-dip galvanizing process per ASTM A123/A123M. This standard covers seamless and welded (ERW) pipe in two grades—Grade A and Grade B—with Grade B being the more commonly specified option due to its superior tensile properties. The zinc coating, typically ranging from 1.8 oz/ft² to 2.0 oz/ft² (550–610 g/m²), forms a metallurgical bond with the base steel, providing outstanding anti-corrosion performance that significantly extends the pipe's operational lifespan in exposed or buried installations.

ASTM A53 Galvanized Steel Pipe Technical Specifications

The following table outlines the key mechanical and chemical properties for ASTM A53 Grade B galvanized pipe, the most widely ordered grade in international trade:

Property	ASTM A53 Grade B Requirement
Yield Strength (min.)	240 MPa (35,000 psi)
Tensile Strength (min.)	415 MPa (60,000 psi)
Carbon Content (max.)	0.30%
Manganese Content (max.)	1.20%
Phosphorus (max.)	0.05%
Sulfur (max.)	0.045%
Zinc Coating Weight	≥ 1.8 oz/ft² (550 g/m²) per ASTM A123
Available Sizes (OD)	1/2" to 26" (DN15–DN650)
Wall Thickness	Schedule 10 through Schedule 160
Pipe Type	Type E (ERW), Type S (Seamless)
End Finish	Plain end, threaded, or grooved

Each pipe is hydrostatically tested at the mill in accordance with ASTM A53 Section 10, ensuring pressure integrity before shipment. For applications requiring different material grades, consider our ASTM A106 seamless steel pipe or EN 10255 galvanized steel tube options.

ASTM a53 galvanized steel pipe wholesale

Primary Applications of ASTM A53 Galvanized Pipe

Water and gas distribution: Municipal water mains, fire sprinkler systems, and natural gas supply lines where zinc coating prevents internal and external corrosion
Structural and architectural frameworks: Building columns, handrails, greenhouse frames, and fence posts requiring weather-resistant steel tubing
Scaffolding and construction: Temporary and permanent support structures that demand superior tensile properties and impact resistance
Mechanical and industrial piping: Steam lines operating below 400°F (204°C), compressed air systems, and oil field flow lines
Agricultural irrigation: Center-pivot and lateral-move irrigation systems exposed to soil moisture and chemical fertilizers

Frequently Asked Questions

What is the minimum order quantity (MOQ) for ASTM A53 galvanized steel pipe?

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

Do you provide material test certificates with each shipment?

Yes. Every order ships with EN 10204 Type 3.1 Mill Test Certificates (MTC) documenting chemical composition, mechanical test results, hydrostatic test pressure, and zinc coating thickness measurements traceable to the producing heat.

ASTM a53 galvanized steel pipe China

What is the typical delivery time for galvanized A53 pipe?

Stock sizes in Schedule 40 and Schedule 80 are commonly available for dispatch within 7–10 business days. Custom lengths, non-standard wall thicknesses, or large-volume orders typically require 25–35 days from order confirmation to port loading.

Can you supply ASTM A53 galvanized pipe cut to custom lengths?

Absolutely. While standard production lengths are 6 meters (20 ft) and 12 meters (40 ft), we offer precision cutting to any specified length with a tolerance of ±3 mm. Threading, grooving, and beveling services are also available upon request.

Get a Competitive Quote for ASTM A53 Galvanized Steel Pipe

Whether you need a single container of Schedule 40 galvanized pipe or a multi-shipment annual supply contract, our dedicated export team is ready to provide value-driven pricing with fast turnaround. Contact us today with your required specifications—including size, wall thickness, quantity, and destination port—and receive a detailed quotation within 24 hours. All ASTM A53 galvanized steel pipe orders are backed by rigorous third-party inspection and comprehensive after-sales support.

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Wei Chen

Singapore

2025-02-11

Perfect Galvanized A53 Pipe Supply for Annual Distribution Contract

We have been sourcing ASTM A53 Grade B galvanized pipe from this supplier for our Southeast Asian distribution network for two years. Current annual volume is approximately 180 tons across multiple sizes from 0.5-inch to 8-inch in Schedule 40 and Schedule 80. Quality has been consistent across all 14 shipments — MTCs show zinc coating averaging 572 g/m² and tensile strength consistently between 418–435 MPa. The supplier accommodates our mixed-container consolidation requirements efficiently, with a minimum 10-ton threshold that suits our order patterns. Average lead time across all orders has been 24 days to Singapore port. Export documentation is always accurate and submitted within 48 hours of vessel loading. This is our primary source for A53 galvanized pipe for the region.

Chris Martin

Canada

2025-03-05

Acceptable A53 Galvanized Pipe Quality with Coating Variance Issue Resolved

Ordered 11 tons of ASTM A53 Grade B galvanized pipe in 4-inch Schedule 40 for compressed air system piping at a manufacturing facility in Ontario. Most of the material was on-spec — MTC showed tensile strength at 422 MPa and carbon at 0.28%. However, our incoming inspection found zinc coating weight on one bundle measured at 531 g/m², marginally below the 550 g/m² ASTM A123 minimum. Raised this with the supplier immediately — they acknowledged the variance, provided a supplementary third-party coating test report, and issued a partial credit within 5 business days. The affected quantity was small and did not impact our project timeline. Resolution was handled professionally. Would consider reordering but will request pre-shipment coating verification on future orders.

Carlos Silva

Brazil

2025-03-27

Reliable Galvanized A53 Pipe for Scaffolding and Construction Use

We ordered 22 tons of ASTM A53 Grade A galvanized ERW pipe in 1.25-inch and 2-inch Schedule 40 for scaffolding rental fleet expansion across our São Paulo operations. Mechanical properties on the MTC were consistent — tensile strength at 334 MPa against the Grade A minimum of 331 MPa. Zinc coating weight averaged 557 g/m². Pricing was 8% below our previous European supplier for equivalent certified material. Delivery to Santos port took 34 days, slightly longer than the initial 28-day estimate due to port congestion at origin, though the supplier communicated the delay proactively. Documentation was complete and accepted by Brazilian customs without revision. Solid supplier for high-volume structural pipe procurement.