Threeway Steel-Seamless Steel Pipe, ERW Steel Pipe, LSAW Steel Pipe, SSAW Steel Pipe
Contact Us
Seamless Steel Pipe,ERW Steel Pipe,LSAW Steel Pipe,SSAW Steel Pipe,

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  

Home - NewsNews Center
Common Defects in Welding Area of ​​Spiral Seam Submerged Arc Welded Steel Pipe

Common Defects in Welding Area of ​​Spiral Seam Submerged Arc Welded Steel Pipe

Keywords :Common Defects in Welding Area of ​​Spiral Seam Submerged Arc Welded Steel Pipe        Update : 2022-03-01        View(s) : 1

All of us know the common defects of spiral welded pipes in the welding area. Here. We listed common 6 defects placed in the spiral welded pipe .  1. Bubbles. Bubbles mostly occur in the center of the weld bead. The main reason is that hydrogen is still hidden inside ...

Acceptance of straight seam steel pipe

Acceptance of straight seam steel pipe

Keywords :Acceptance of straight seam steel pipe        Update : 2022-02-28        View(s) : 1034

1. The inspection and acceptance of straight seam steel pipes shall be carried out by the technical supervision department of the supplier. 2. The supplier ensures that the delivered straight seam steel pipe meets the requirements of the corresponding product standards. The purchaser has the...

What are the standards for the storage of anti-corrosion steel pipes

What are the standards for the storage of anti-corrosion steel pipes

Keywords :What are the standards for the storage of anti-corrosion steel pipes        Update : 2022-02-25        View(s) : 1258

1. The appearance of the storage and delivery of anti-corrosion steel pipes needs to be checked as follows: ①Check root by root to ensure that the surface of the polyethylene layer is flat and smooth, without dark bubbles, pits, wrinkles, and cracks, and the overall color needs to be more unif...

The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde

The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde

Keywords :The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde        Update : 2022-02-24        View(s) : 1133

Submerged arc welding spiral steel pipe uses continuous welding wire as electrode and filler metal. During operation, a layer of granular flux is covered on the welding area. The large-diameter spiral tube arc burns under the flux layer, melting the end of the welding wire and the local base metal...

The difference between straight seam welded pipe and spiral welded pipe

The difference between straight seam welded pipe and spiral welded pipe

Keywords :The difference between straight seam welded pipe and spiral welded pipe        Update : 2022-02-23        View(s) : 1171

1. Metallurgical properties of the material The raw material of the spiral welded pipe is a hot-rolled coil, and the straight seam welded pipe is made of a steel plate socket. The weight of the alloy contained in the coil is less than that of the steel plate, and it is for this reason that the spi...

Page(s):  1 ... 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 ... 480