BS1387 & ASTM A53 Welded Carbon Steel Pipe

We are a professional manufacturer specializing in BS1387 and ASTM A53 welded steel pipes, primarily used for fluid transportation and structural applications. With over 15 years of export experience, our carbon steel tubes are produced under strict quality control, ensuring each pipe meets international standards such as DIN, JIS, and API 5L. Our facility offers comprehensive surface treatments including hot-dipped galvanization, painting, and oiling to provide superior corrosion protection for global industrial projects.

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Technical Specifications

Category Technical Data Details
Standard BS 1387, ASTM A53, BS EN 10219, DIN EN 10217, JIS G3444, API 5L
Material Grade Q195 / Q235 / Q345, S195GT, S235GT, S355JOH
Outer Diameter (OD) 1/2” – 10” (21.3mm – 273mm)
Wall Thickness 1.2mm – 14mm
Length 1m – 16m (Standard 5.8m/6m or Customized)
Surface Treatment Hot-dipped Galvanized, Painted, Oiled, Anti-corrosion coating
End Treatment Plain, Threaded, Grooved, Beveled
Section Shape Round
Tolerance OD: +/-0.3mm; Thickness: +/-0.1mm
Testing 100% Hydrostatic Testing (Fluid Tube)

Key Advantages & Manufacturing Excellence

High Precision Tolerance: We maintain industry-leading tolerances with Outside Diameter at +/-0.3mm and Wall Thickness at +/-0.1mm, ensuring seamless fitment for threaded or grooved connections.
100% Hydrostatic Tested: For fluid tube applications, every single pipe undergoes a 100% hydro-test to guarantee zero leakage and maximum safety under pressure.
Advanced Surface Protection: Our hot-dipped galvanization process ensures a uniform zinc coating, significantly extending the pipe’s service life in humid or corrosive environments.
Expert Manufacturing: As a direct manufacturer with 15+ years of experience, we provide the most competitive factory pricing and a fast delivery lead time of 10-20 days.

Product Applications

Fluid Transportation: Widely used for water, gas, air, and steam delivery (conforming to BS1387/ASTM A53 standards).
Construction & Scaffolding: Structural support pipes, scaffolding systems, and greenhouse frames.
Mechanical Engineering: Used in automotive parts, industrial machinery, and furniture framework.
Fire Protection Systems: Reliable piping for fire sprinkler systems with threaded or grooved ends.

Packaging & Delivery

Packaging: Supplied in seaworthy bundles secured by steel strips, or with damp-proof plastic packaging as per customer requirements.
Port of Shipment: Xingang Port, Tianjin, China.
Loading: Available for both 20ft/40ft Containers and Bulk Carriers to optimize shipping costs.
Lead Time: Normally 10-20 days after confirmation of T/T, L/C, or D/P payments.

Frequently Asked Questions (FAQ)

Q: Are you a manufacturer or a trading company?
A: We are a professional steel product manufacturer with over 15 years of export experience. Our factory is located in Tianjin, strategically close to Xingang Port for efficient logistics.

A: Our standard MOQ is one full 20ft container. We accept mixed sizes and grades within a single container to meet your project needs.

A: Yes. We have a professional QC team and support third-party inspections (such as SGS or BV). We also provide ISO certificates for all shipments.

A: Yes, samples are available free of charge. You only need to cover the courier cost.

A: We offer a variety of end treatments including plain ends, threading (with couplings or caps), grooving for mechanical joints, and beveling for welding.

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