High-Quality Welded Steel Pipe & Tube

We are a professional manufacturer of welded steel pipes and tubes, offering a wide range of specifications for fluid transportation and structural applications. Our products are manufactured using premium carbon steel and undergo rigorous quality control to meet international standards such as ASTM A53, BS 1387, and API 5L. With over 15 years of export experience, we ensure that every pipe is 100% hydro-tested, providing a reliable and cost-effective solution for global engineering projects.

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high quality welded steel pipe & tube

Technical Specifications

Category Technical Details
Standard ASTM A106/A53, BS 1387, BS EN 10217/10219, DIN EN 10025, API 5L, JIS G3444
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 & Customized)
Surface Treatment Hot-dipped Galvanized, Painted, Oiled (Anti-rust)
End Treatment Plain, Threaded (with Coupling/Cap), Grooved, Beveled
Section Shape Round
Tolerance OD: +/-0.3mm; Wall Thickness: +/-0.1mm
Testing 100% Hydrostatic Test

Manufacturing Advantages & Quality Control

High Precision Tolerance: We implement a superior quality control system covering thickness, OD, and length. Our pipes maintain an Outside Diameter tolerance of +/-0.3mm and a Wall Thickness tolerance of +/-0.1mm, ensuring high performance in demanding installations.
100% Pressure Safety: All fluid-carrying tubes are subjected to a 100% hydro-test to ensure weld integrity and leak-proof reliability, adhering to international safety protocols.
Customizable Finishing: We provide diverse end treatments, including Threading, Grooving, and Beveling, to match your specific project requirements, saving you time and labor costs during on-site assembly.
Professional Export Expertise: With over 15 years of international experience, we understand the nuances of global standards and logistics, providing ISO-certified products and supporting third-party inspections (SGS/BV).

Product Applications

Fluid Transportation: Reliable piping for water, gas, air, and low-pressure steam delivery.
Construction & Structural: Used in scaffolding systems, greenhouse structures, and building frameworks.
Industrial Engineering: Mechanical tubes for machinery parts, automotive components, and furniture manufacturing.
Infrastructure: Support columns, piling pipes, and protective conduits for electrical and communication lines.

Packaging & Delivery

Packaging: Seaworthy bundles secured with high-tensile steel strips. Damp-proof plastic packaging is available as an option to ensure the product remains rust-free during long-distance sea freight.
Loading Port: Efficiently dispatched from Xingang Port, Tianjin, China.
Delivery Time: Normally 10-20 days after receipt of advance payment or confirmation of L/C, T/T, or D/P.
Shipping Options: Flexible shipping via 20ft/40ft Containers or Bulk Carriers to optimize your logistics costs.

Frequently Asked Questions (FAQ)

Q: Are you a manufacturer or a trader?
A: We are a professional steel product manufacturer with more than 15 years of export experience. Our factory is located in Tianjin, the largest steel hub in Northern China.

A: Our standard MOQ is one full 20ft container. We accept mixed sizes and material grades within a single container to provide more flexibility for our clients.

A: Yes, we provide free samples for quality verification. Customers are only responsible for the courier/freight charges.

A: Absolutely. We have a professional QC team and support inspections by independent third parties such as SGS, BV, or Lloyds to ensure product compliance.

A: We warmly welcome you to visit our facility. Once you provide your schedule, we will arrange a professional sales team to follow up on your case.

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