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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

Phone:0086-731-8873-9521  

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Why can't stainless steel pipe and carbon steel pipe be mixed

Why can't stainless steel pipe and carbon steel pipe be mixed

Keywords :Why can't stainless steel pipe and carbon steel pipe be mixed        Update : 2020-11-11        View(s) : 1343

The materials of carbon steel pipe and stainless steel pipe are different, and the two cannot be stacked together. At room temperature, when the carbon steel pipe is in contact with the stainless steel pipe, carburization will not occur immediately. The spotted rust on the stainless steel pipe w...

high frequency welded pipe

Skill requirements and inspection of high frequency welded pipe

Keywords :high frequency welded pipe        Update : 2020-11-05        View(s) : 1162

The nominal diameter of the welded pipe is 6~150mm, the nominal wall thickness is 2.0~6.0mm, and the length of the welded pipe is generally 4~10 meters, according to the rules of the GB3092 Welded Steel Pipe for Low-Pressure Fluid Conveyance. It can be delivered according to fixed-length or mult...

straight seam steel pipe

Welding technology and production method of large-diameter straight seam steel pipe

Keywords :straight seam steel pipe        Update : 2020-11-04        View(s) : 1315

1. Control of the weld gap The strip steel is sent to the welded steel pipe unit, after rolling by multiple rollers, the strip steel is gradually rolled up to form a round tube blank with an open gap, and the reduction of the squeeze roller is adjusted to control the weld gap to 1~3mm, A...

Measuring method of end cut of steel pipe

Measuring method of end cut of steel pipe

Keywords :Measuring method of end cut of steel pipe        Update : 2020-10-29        View(s) : 1277

Long-distance oil and gas pipelines are connected by a large number of single steel pipes. To facilitate the on-site butt joint construction, the steel pipe manufacturer needs to machine the designed welding groove and blunt edge on the pipe end of each steel pipe and ensure the cutting accuracy...

The anti-corrosion structure and advantages of 3PE anti-corrosion steel pipe

The anti-corrosion structure and advantages of 3PE anti-corrosion steel pipe

Keywords :The anti-corrosion structure and advantages of 3PE anti-corrosion steel pipe        Update : 2020-10-28        View(s) : 1320

1. Anti-corrosive structure of 3PE anti-corrosive steel pipe 3PE anti-corrosion generally consists of three layers: the first layer of epoxy powder (FBE>100um), the second layer of adhesive (AD) 170~250um, and the third layer of polyethylene (PE) 2.5~3.7mm. In actual operation, the th...

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