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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: 410116

Hotonline: 0086-187-7406-7534 

Phone:0086-731-8873-9521  

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Flange classification

Flange classification

Keywords :Flange classification        Update : 2020-09-16        View(s) : 329

1. According to national standards: integral flange, threaded flange , butt welding flange, flat welding flange with neck, socket welding flange with neck, butt welding ring loose flange with neck, plate flat welding flange, Buttweld ring plate loose flange, flat weld ring plate loose flange, f...

Pre-treatment and use of straight seam steel pipe

Pre-treatment and use of straight seam steel pipe

Keywords :Pre-treatment and use of straight seam steel pipe        Update : 2020-09-11        View(s) : 311

Non-destructive testing of the inside of the weld. Because the pipeline belongs to the extra-large steel pipe in the water supply project, especially the steel pipe with a thickness of t=30mm is used as a pipe bridge, which not only bears the internal water pressure but also bears the weight of ...

Process characteristics of spiral steel pipe

Process characteristics of spiral steel pipe

Keywords :spiral steel pipe        Update : 2020-09-09        View(s) : 292

1. During the forming process, the steel plate deforms evenly, the residual stress is small, and the surface does not produce scratches. The processed spiral steel pipe has greater flexibility in the size and specification range of diameter and wall thickness, especially in the production of h...

Testing method of plastic-coated steel pipe(Part One)

Testing method of plastic-coated steel pipe(Part One)

Keywords :plastic-coated steel pipe        Update : 2020-09-02        View(s) : 299

A. Visual inspection Visually inspects the appearance quality of the coated steel pipe .   B. Thickness measurement Take two cross-sections of different lengths from the two ends of the coated steel pipe, and measure the coating thickness at any four points ...

What are the details of the thick-walled steel pipe before use

What are the details of the thick-walled steel pipe before use

Keywords :thick-walled steel pipe        Update : 2020-08-31        View(s) : 331

1. Thick-walled steel pipe cutting: According to the actual required pipeline length, the pipe should be cut with a metal saw or a toothless saw. When water welding is used in the cutting process, the raw materials should be protected accordingly. When cutting, fire-resistant and heat-resistant ...

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