
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 :rectangular and square tubes building steel structures Update : 2026-09-20 View(s) : 115
Square and rectangular steel tubes , also known as hollow structural sections (HSS), are essential for modern building construction. Their closed-section design offers superior resistance to axial loads, bending, and torsion, making them ideal for columns, beams, and roof trusses. Square t...

Keywords :square and rectangular tubes Update : 2026-09-18 View(s) : 119
Selecting the right square and rectangular tubes (HSS) requires more than checking dimensions; understanding the applicable global standard is critical for structural integrity. This guide compares three major standards: China's GB/T 6728, North America's ASTM A500, and Europe's EN 10219. ...

Keywords :ERW steel pipes Update : 2026-09-11 View(s) : 113
ASTM A53 Grade B ERW steel pipes are widely used in industrial applications, but the localized heating during welding can alter the metallurgical properties of the weld zone and heat-affected zone (HAZ). To address this, heat treatment is often applied to reduce brittleness, eliminate res...

Keywords :ASTM A53 Grade B steel pipe Update : 2026-09-10 View(s) : 135
ASTM A53 Grade B steel pipe is a versatile carbon steel pipe widely used in general industrial and mechanical applications. Available in both seamless and welded forms, as well as black or hot-dip galvanized finishes, it offers an excellent balance of strength, weldability, and cost-efficiency...

Keywords :ASTM A53 welded steel pipes Update : 2026-09-09 View(s) : 121
ASTM A53 welded steel pipe is widely used in industrial piping, making the integrity of the longitudinal weld seam critical for safety. Ultrasonic testing (UT) is a vital nondestructive examination method that uses high-frequency sound waves to detect hidden internal defects, such as lack of f...