
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 :galvanized steel pipe, galvanized steel pipe welding, galvanized steel pipe corrosion Update : 2025-12-05 View(s) : 25
First, corrosion prevention for welded galvanized steel pipes : After surface treatment, apply thermal spray zinc. If on-site galvanizing is not possible, on-site corrosion prevention methods can be used: apply epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate paint, and polyureth...

Keywords :flange, blind flange, flange application Update : 2025-12-02 View(s) : 42
As we all know, pipes are usually connected by some kind of fitting, which we call a " flange ". However, in real life, many of us are not clear about the difference between a flange and a blind flange, and often confuse them. The differences between a flange and a blind flange are explained in de...

Keywords :20Mn2 seamless steel pipe, selecting 20Mn2 seamless steel pipe, using 20Mn2 seamless steel pipe Update : 2025-12-01 View(s) : 44
Why are 20Mn2 seamless steel pipes both loved and hated? 20Mn2 seamless steel pipe is a "backbone material" in fields such as machinery manufacturing and hydraulic equipment. Many engineers have mixed feelings about it—they love its high strength and wear resistance, but worry about the pitfalls...

Keywords :hot rolled seamless steel pipe, Q690E seamless steel pipe manufacturing, seamless steel pipe Update : 2025-11-26 View(s) : 50
Q690E hot-rolled seamless steel pipe is a high-strength, low-alloy structural steel material. Due to its excellent mechanical and weldability properties, it is widely used in heavy industries such as engineering machinery, coal mine hydraulic supports, shipbuilding, and bridge construction. As a...

Keywords :Q345DG seamless steel pipe, 16MnDG seamless steel pipe, low temperature seamless steel pipe Update : 2025-11-24 View(s) : 50
First, the chemical composition of Q345DG and 16MnDG low-temperature seamless steel pipes differs. 1. Basic composition of Q345DG low-temperature seamless steel pipe: Carbon ≤0.18%, Silicon 0.20-0.60%, Manganese 1.00-1.60%, Phosphorus ≤0.030%, Sulfur ≤0.030%. Alloying elements: Trace amounts...