RUNYING Steel Group is a premier Tangshan-based exporter supplying high-performance precision welded (ERW) and seamless steel pipes to global oil & gas, structural, mechanical, and solar energy projects.

Operating under strict ISO 9001 Quality Management System standards, our steel tubes feature tight dimensional tolerances (±0.15mm wall tolerance for ERW and ±0.05mm for cold-drawn tubes) with comprehensive non-destructive testing (NDE) inspection before export via Tianjin Port.

Technical Specifications & Product Range

Key Advantages of RUNYING Steel Tubes

$\pm 0.15\text{mm}$ · Structural Superiority: Offers up to 40% higher bending resistance in square/rectangular hollow sections with ±0.05mm precision tolerance for cold-drawn tubes.

 · Energy & Industrial Ready: HIC/SSC resistant for sour service compliance (NACE TM0284) with up to 42MPa maximum working pressure (SCH160).

 · ISO 9001 Certified Quality Control: Full physical and chemical lab testing, hydro testing, bevel end processing (API 5CT standard), and zero-defect surface oiling/PE coating.

 · Seaworthy Packaging: Export-grade bundles with plastic end caps, steel strapping, and anti-corrosion VCI protection for ocean transport.

Industry Solutions & Recommended Specs

Request Your Factory-Direct Steel Pipe Quote

Looking for API 5L seamless pipes, ERW structural hollow sections, or hot-dip galvanized water tubes? Get real-time factory rates, ISO 9001 compliance documentation, and Tianjin Port container loading solutions from our export team within 24 hours:

 · Email Sales: admin@tsrysteel.com

 · WhatsApp: +86 15176700707

 · Official Website: http://www.tsrysteel.com

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