
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 :spiral steel pipe, spiral welded steel pipe crack, spiral welded steel pipe transverse Update : 2025-12-16 View(s) : 73
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) : 45
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 :spiral welded steel pipe, welded steel pipe stress, spiral steel pipe extrusion process Update : 2025-12-12 View(s) : 70
(1) During extrusion, the temperature of the inner lining of the spiral welded steel pipe continuously increases with the extrusion process. At the end of extrusion, the temperature in the area near the extrusion die on the inner wall of the lining is relatively high, reaching 631℃. The temperat...

Keywords :galvanized steel pipe characteristics, galvanized steel pipe connection, galvanized steel pipe usage Update : 2025-12-11 View(s) : 85
There are three connection methods for galvanized steel pipes : 1. Grooving Connection (1) Grooving Weld Cracking: ① Grind the weld bead on the inner wall of the grooved part of the galvanized steel pipe to reduce grooving resistance. ② Adjust the axis of the galvanized steel pipe and the...

Keywords :boiler steel tube, boiler steel pipe production, boiler steel pipe wall thickness Update : 2025-12-10 View(s) : 81
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...