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Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116

Phone:0086-731-8873-9521  

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OCTG Pipes  API 5CT Casing

OCTG Pipes: API 5CT Casing & Tubing Guide ( OCTG OIL AND GAS) (CASING AND TUBING)

Keywords :OCTG Pipes API 5CT Casing         Update : 2026-06-08        View(s) : 1

OCTG (Oil Country Tubular Goods) are specialized steel pipes essential for safe and efficient oil and gas extraction. Primarily consisting of casing and tubing, they form the backbone of well construction. Casing provides structural support and isolates underground pressure zones, while tu...

Seamless Pipe

Cold Drawn vs. Hot Rolled Seamless Pipe: Surface Finish and Dimensional Accuracy

Keywords :Seamless Pipe        Update : 2026-06-05        View(s) : 59

The manufacturing process is a critical determinant of seamless steel pipe performance, directly influencing surface quality and dimensional accuracy. While both hot rolling and cold drawing produce weld-free pipes, their distinct processing methods yield different engineering characteristics. ...

 Square Steel Tubing

Structural Load Capacity of Square Steel Tubing

Keywords : Square Steel Tubing        Update : 2026-06-04        View(s) : 65

Square steel tubing is essential for construction and fabrication, but selecting the wrong size or grade can cause structural failure. Understanding load capacity is critical for safety and cost-efficiency.  1. Load capacity depends on several interacting variables: 2....

EN 10219 vs ASTM A500 steel structures

EN 10219 vs ASTM A500: How to interchange European and American standard cold-formed hollow steel se

Keywords :EN 10219 vs ASTM A500 steel structures        Update : 2026-06-03        View(s) : 67

In modern international construction, projects often involve cross-border material procurement, making steel standard compatibility a critical issue for safety and efficiency. Among the most widely used specifications for cold-formed hollow steel sections are the European standard EN 10219...

high-frequency welding low-frequency welding

High-frequency welding vs. low-frequency welding: They look the same, so why must we be wary of pote

Keywords :high-frequency welding low-frequency welding        Update : 2026-06-02        View(s) : 57

In modern industrial pipeline systems, welded steel pipes are essential for transporting high-pressure fluids like oil, natural gas, and chemical media. Among the common manufacturing methods, high-frequency welding (HFW) and low-frequency welding (LFW) may appear nearly identical ex...

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