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 :Matters needing attention in the use of thick-walled steel pipes Update : 2023-07-14 View(s) : 355
How much wall thickness can be called thick-walled steel pipe ? This is a bit doubtful. It depends on the ratio of the outer diameter of the steel pipe to the wall thickness of the steel pipe. For example, a steel pipe with a diameter of 50 mm, 10 mm can be regarded as a thick-walled steel pipe. ...
Keywords :The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde Update : 2023-07-12 View(s) : 1
The submerged arc welding spiral steel pipe uses continuous welding wire as the electrode and filler metal. During work, a layer of granular flux is covered in the welding area. The arc of the large-diameter spiral pipe burns under the flux layer to melt the end of the welding wire and the local...
Keywords :Uneven thickness of the anti-corrosion coating on spiral steel pipe and its treatment Update : 2023-07-10 View(s) : 349
Spiral steel pipes are mainly used as fluid pipes and piling pipes. If the steel pipes are used for running water after they are made, they will generally be treated with anti-corrosion treatment on the inner or outer surfaces. The general anti-corrosion methods include 3pe anti-corrosion, epoxy...
Keywords :Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipe Update : 2023-07-06 View(s) : 284
Large-diameter straight seam submerged arc steel pipes are mainly responsible for pipeline transportation of marine and land oil and gas, oil and natural gas, coal and ore pulp, etc., especially suitable for the "West-to-East Gas Transmission" project currently under construction in my country, ...
Keywords :Comparison of technical characteristics of spiral welded pipe and straight seam welded pipe Update : 2023-07-04 View(s) : 519
1. Metallurgical properties of materials Longitudinal submerged arc welded pipes are produced from steel plates, while spiral welded pipes are produced from hot rolled coils. The rolling process of the hot-rolled strip mill has a series of advantages and can obtain the metallurgical process fo...