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 :Basic requirements and production temperature of straight seam steel pipe weld appearance Update : 2022-03-15 View(s) : 1145
Basic requirements for the appearance of straight seam steel pipe welds 1. Surface of welded joints: A. No cracks, unfused, pores, slag inclusions, and splashes are allowed. B. The welding seam surface of pipelines with design temperature lower than -29 degrees, stainless steel and alloy st...
Keywords :Construction preparation and inner wall anticorrosion before welding of large-diameter steel pipe Update : 2022-03-14 View(s) : 1084
Construction preparation before welding of large diameter steel pipe : 1. Organize relevant operators, be familiar with construction drawings and regulations, formulate welding procedures, and compile welding operation instructions. 2. Welders should be trained in corresponding projects and h...
Keywords :Inspection method for large diameter straight seam welded pipe Update : 2022-03-11 View(s) : 1189
There are many methods for quality inspection of large-diameter longitudinally welded pipes , among which physical methods are also commonly used inspection methods. Physical inspection is a method of measuring or inspecting by using some physical phenomena. The inspection of the internal defects...
Keywords :Precautions in the use of straight seam steel pipes Update : 2022-03-10 View(s) : 999
1. There are strict technical requirements for the installation and use of straight seam steel pipes , which need to be carried out according to the actual situation and operating procedures to ensure quality. The construction preparations before the use of straight seam steel pipes , to excavat...
Keywords :How to choose submerged arc steel pipe Update : 2022-03-09 View(s) : 981
1. For pipelines with high peak shaving requirements, due to the uneven gas consumption of users, frequent fluctuations in pipeline pressure, and great alternating stress on the steel pipe, the existing defects in the pipe will expand under the alternating stress. For spiral welded s...