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 :Pre-welding and welding essentials of straight seam steel pipe Update : 2023-05-30 View(s) : 565
Pre-welding of straight seam steel pipes : pre-welding includes seams and welds. 1. The joint (that is, the forming seam) has no misalignment or the misalignment is less than the specified value. Generally, the amount of misalignment is ≤ 8% of the plate thickness, and the maximum is not more t...
Keywords :What are the characteristics of large-diameter steel pipes Update : 2023-05-29 View(s) : 563
1. Impact toughness of large-diameter steel pipe : The load acting on the machine part at a high speed is called impact load, and the ability of the metal to resist damage under the action of impact load is called impact toughness. 2. Strength of large-diameter steel pipe: Strength refers to...
Keywords :What is the difference between oil casing and oil drill pipe Update : 2023-05-26 View(s) : 537
There are two main differences between oil casing and oil drill pipe: 1. Different uses; 2. Different materials. Oil casing is a steel pipe used to support the walls of oil and gas wells to ensure the normal operation of the entire oil well after the drilling process and completion. Each well ...
Keywords :How is the spiral steel pipe sawn off Update : 2023-05-25 View(s) : 627
After a series of treatments such as forming, welding, and cooling, the spiral steel pipe still needs to be sawed. In this link, the length of the technical spare ruler directly affects the quality and sales of the finished welded pipe, so the length of the spare ruler should be controlled betwe...
Keywords :What is the role of oil casing in the process of oil drilling Update : 2023-05-24 View(s) : 625
Surface casing: install the oil casing head on the top, suspend and support the subsequent layers of the casing through the casing head; isolate the surface shallow water layer and the shallow complex bottom layer, so that the freshwater layer is not polluted by drilling fluid Intermediate ...