ASTM A53 Hot-Dipped Galvanized Steel Pipe

Our ASTM A53 galvanized steel pipes are designed for high-performance fluid transportation and structural applications. Fully compliant with ASTM A53, EN10255, and BS1387:1985 standards, these pipes feature a superior hot-dipped galvanized surface with an average zinc coating of 280g/m² (40μm). With over 15 years of manufacturing expertise, we ensure every pipe is 100% hydro-tested and processed with precision burr-free ends, providing the durability and safety required for global industrial projects.

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astm a53 hot dipped galvanized steel pipe

Technical Specifications

Technical Category Details & Specifications
Standard ASTM A53, EN10255, BS1387:1985, EN39, BS1139, JIS3444
Material Grade S195GT / S235GT / S355GT; Q195; Q235; Q345
Outer Diameter (OD) 1/2” – 10” (21.3mm – 273mm)
Wall Thickness 1.5mm – 14mm
Zinc Coating Weight Normal AVG: 280g/m² (40um); Max. 70um
Length 1m – 16m (Customized lengths available)
Pipe End Treatment Plain (Burr-Free), Threaded, Grooved, Beveled
Surface Finish Hot-dipped Galvanized, Painted, Oiled
Testing 100% Hydrostatic Testing Guaranteed

Key Performance Advantages

Premium Zinc Protection: Our hot-dipping process achieves an average zinc coating of 280g/m², offering long-term corrosion resistance in humid and industrial environments. We can also provide a maximum coating of 70μm for heavy-duty engineering requirements.
Precision Burr-Free Ends: We utilize advanced in-line clean-end machines to remove all internal and external burrs. This ensures smooth fluid flow and safe manual handling, making our pipes a preferred choice for contractors who demand high-quality finishes.
100% Hydrostatic Reliability: For fluid and pressure applications, every ASTM A53 pipe undergoes a 100% hydro-test. This rigorous safety protocol ensures leak-proof performance for water, gas, and air transport.
Versatile Scaffolding Spec: We are experts in producing 48.3mm OD tubes (3.2mm/4.0mm thickness) compliant with EN39 and BS1139. These are widely used in high-strength scaffolding, formwork, and shoring systems due to their excellent load-bearing capacity and anti-rust finish.

Product Applications

Fluid & Gas Transportation: Reliable piping for low-to-medium pressure water, air, and steam delivery.
Construction Scaffolding: High-durability components for construction systems (scaffolding tubes 48.3mm).
Fire Protection Systems: Ideal for fire sprinkler networks with grooved or threaded end options.
Mechanical & Structural: Structural frameworks for greenhouses, bridges, and industrial buildings.

Packaging & Delivery

Packaging: Securely packed in seaworthy bundles with steel strips. Damp-proof packaging is available to protect the galvanized surface during long-distance maritime transport.
Loading Port: Efficient dispatch from Xingang Port, Tianjin, China.
Delivery Time: Fast lead times, normally 18-20 days after payment confirmation (T/T, L/C, D/P, or O/A).
Logistics: Support for both Container and Bulk carrier shipping to optimize your freight costs.

Frequently Asked Questions (FAQ)

Q: Does your ASTM A53 pipe support threading and coupling?
A: Yes. We offer precision end treatments including threading, grooving, and beveling. All threads are checked with gauges to ensure perfect compatibility.

A: We focus on high-quality standards. Our 280g/m² (40um) coating provides a thicker protective layer, ensuring a longer service life in outdoor construction compared to pre-galvanized pipes.

A: Absolutely. We support third-party inspections from SGS, BV, and other agencies to verify the material grade, OD, wall thickness, and zinc coating weight.

A: For standard specifications, we can complete production and prepare for shipment within 18-20 days.

A: Yes, we provide free samples for your technical evaluation. You only need to cover the international courier cost.

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