
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 :Q700L high strength welded steel pipe, Q700L welded steel pipe production, Q700L steel pipe usage Update : 2025-12-22 View(s) : 275
First, Material Characteristics of Q 700L High-Strength Welded Steel Pipes . Q700L belongs to low-alloy high-strength structural steel. In its naming, "Q" represents yield strength, "700" indicates a minimum yield strength of 700MPa, and "L" refers to low-temperature toughness. This steel achi...

Keywords :Q890D seamless steel pipe, Q890D seamless steel pipe characteristics, Q890D steel pipe usage Update : 2025-12-19 View(s) : 248
Q890D seamless steel pipe , as a high-strength low-alloy structural steel material, is widely used in engineering machinery, mining equipment, bridge construction, and other fields. With its excellent mechanical and weldability properties, this steel pipe has become one of the preferred materials...

Keywords :spiral steel pipe, spiral welded steel pipe crack, spiral welded steel pipe transverse Update : 2025-12-16 View(s) : 292
Firstly, it may be due to the stress on the spiral submerged arc welded steel pipe , including residual stress after pipe forming and welding stress. Secondly, it may be due to the presence of hydrogen. This could be caused by insufficient flux drying, inadequate preheating temperature, or l...

Keywords :seamless steel pipe quality requirement, seamless steel pipe usages, seamless steel pipe Update : 2025-12-15 View(s) : 222
1. Chemical Composition of Seamless Steel Pipes : The chemical composition of steel is one of the most important factors affecting the performance of seamless steel pipes, and it is also the main basis for formulating rolling process parameters and heat treatment process parameters for steel pipe...

Keywords :boiler steel tube, boiler steel pipe production, boiler steel pipe wall thickness Update : 2025-12-10 View(s) : 277
First, Boiler Steel Tube Production Methods Boiler steel tubes are a type of seamless steel tube. The manufacturing method is the same as for seamless steel tubes, but there are strict requirements on the steel grade used. They are divided into general boiler steel tubes and high-pressure boil...