RUNYING Steel Group is a premier manufacturer and exporter of Precision Seamless Steel Pipes and ERW Welded Round Tubes. Engineered to meet strict international standards including ASTM A106, ASTM A53, API 5L, and EN 10219, our round steel pipes undergo 100% Non-Destructive Examination (NDE) to guarantee absolute pressure integrity for hydraulic, structural, and oil/gas piping applications.

Technical Specifications & Manufacturing Range

Core Engineering Advantages

1. Superior Pressure Integrity & Safety:

Heavy-wall seamless pipes withstand ultra-high pressure environments without risk of seam failure, fully certified to PED 2014/68/EU directives.

2. Precision Dimensional Control:

Cold-drawn seamless tubes feature wall thickness tolerances down to ±0.05mm; ERW tubes maintain an outer diameter precision of ±0.15mm.

3. Advanced Anti-Corrosion Solutions:

Available with 3-Layer Polyethylene (3PE/FBE) coatings for buried marine pipelines or 310S high-temperature resistant finishes.

4. Fabrication-Ready Customization:

In-house processing includes precision laser square cutting (angle tolerance ≤0.5°), end beveling, and custom length slitting.

Key Industry Applications

 · Fluid & Energy Transport: Oil and gas line pipes, high-pressure boiler tubes, water supply pipelines, and chemical process piping.

 · Structural & Infrastructure: Heavy construction piling, scaffolding systems, bridge cladding, and highway guardrails.

 · Mechanical & Automotive: Hydraulic cylinder tubes, precision machine components, and structural frameworks.

Seaworthy Export Packaging & Direct Port Loading

All steel round pipes are exported using rigorous protective packaging to prevent moisture and handling damage:

 · Small diameters bundled with steel straps; large diameters fitted with end caps and outer wrapping.

 · Surface treated with anti-rust vanishing or hot-dip galvanizing before shipping.

 · Direct containerized loading and breakbulk shipping through Tianjin Port, China.

Request Your Steel Pipe Factory Direct Quote

Looking for Mill Test Certificates (EN 10204 3.1), custom beveling, or wholesale container pricing? Contact our export engineering team today:

 · Direct Email: admin@tsrysteel.com

 · WhatsApp / Phone: +86 15176700707

 · Official Web Home: http://www.tsrysteel.com

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