
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: 410116Phone:0086-731-8873-9521

Keywords :API 5L steel pipes Update : 2026-09-07 View(s) : 74
API 5L steel pipes are essential for offshore oil and gas transportation, providing a standardized solution for subsea pipelines, export lines, and riser systems. Developed by the American Petroleum Institute, this specification covers seamless and welded line pipes with varying strength grade...

Keywords :EN 10219 S355J2H steel pipe Update : 2026-09-04 View(s) : 73
EN 10219 S355J2H steel pipe is a premium cold-formed welded structural hollow section designed for load-bearing applications. Manufactured under the European EN 10219 standard, it is available in CHS, SHS, and RHS profiles. The "S355" designation guarantees a minimum yield strength of 355 MP...

Keywords :EN 10219 and API 5L steel pipe Update : 2026-09-03 View(s) : 84
EN 10219 and API 5L serve distinctly different engineering purposes and should not be treated as direct substitutes. EN 10219 covers cold-formed welded structural hollow sections, primarily used for load-bearing applications like building frames, bridges, and machinery. Common grades include S2...

Keywords :steel pipe Update : 2026-09-02 View(s) : 92
Stretching and straightening are critical finishing processes that directly determine the dimensional accuracy of steel pipes . Stretching applies controlled axial force to relieve residual stresses and improve consistency, while straightening corrects bending and ovality to ensure proper align...

Keywords :spiral steel pipes Update : 2026-09-01 View(s) : 79
Rust prevention is essential for maintaining the strength, durability, and service life of spiral steel pipes . Without adequate protection, exposure to moisture, oxygen, and aggressive chemicals can cause severe corrosion, leading to wall thinning, pitting, and potential structural failure in ...