
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 :The difference between thin-walled spiral steel tubes and thick-walled spiral steel tube Update : 2022-11-02 View(s) : 965
The concept of thin-walled spiral steel tube : the strip steel is fed into the welded pipe unit, rolled by multiple rollers, and the strip is gradually rolled up to form a circular tube blank with an opening gap, and the reduced amount of the extrusion roller is adjusted to make the welding seam ...

Keywords :Pre-welding and welding method of straight seam steel pipe Update : 2022-11-01 View(s) : 1081
Pre-welding of straight seam steel pipes : Pre-welding includes joints and welds. 1. There is no wrong edge or the wrong edge is smaller than the specified value. Generally, the amount of the wrong edge is ≤8% of the plate thickness, and the maximum is not more than 1.5mm. 2. It is necessary ...

Keywords :Performance comparison of spiral steel pipe and straight seam steel pipe Update : 2022-10-31 View(s) : 1
1. Welding process In the welding process, the welding method of the spiral steel pipe and the straight seam welded pipe is the same, but the straight seam welded pipe will inevitably have many T-shaped welds, so the probability of welding defects is greatly increased, and the welding resi...

Keywords :Application of straight seam steel pipe in pressure pipeline Update : 2022-10-28 View(s) : 1159
The nominal diameter of straight seam steel pipe refers to the series of diameters specified in the standard of straight seam steel pipe. For straight seam steel pipes, pipe fittings, valves, etc., the series specified by the standard are used to indicate the nominal straight seam steel pipe dia...

Keywords :Why non-metallic pipes or stainless steel pipes cannot be used as long-distance pipelines Update : 2022-10-27 View(s) : 1082
Oil and gas transportation through pipelines requires a certain pressure to achieve. The longer the pipeline, the higher the pressure required for oil and gas transportation. The pressure of long-distance pipelines is generally between a few MPa and a dozen MPa, so the pipeline must have Sufficient ...