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Causes of transverse cracks in welds of high-frequency welded pipes

2023-12-18 15:13:44
It can be seen from the results of the weld metallographic inspection that there is hardened martensite on the upper and lower surfaces of the high-frequency welded pipe weld. This is because the meta...
Industry News

How to avoid the fracture of straight seam steel pipe?

2023-12-18 15:13:45
Longitudinal seam steel pipe is a kind of steel pipe parallel to the longitudinal direction of the steel pipe. It is generally divided into metric welded steel pipe, welded thin-walled pipe, transform...
Industry News

Causes of pores in seamless steel pipe welding

2023-12-18 15:13:46
The gas dissolved in the high-temperature liquid metal during the welding of seamless steel pipes will escape in the form of bubbles during the cooling process. If the slag viscosity of the seamless s...
Industry News

What are the production processes for seamless steel pipes?

2023-12-18 15:13:48
According to different production processes, seamless steel pipes can be divided into hot-rolled seamless steel pipes, hot-expanded seamless steel pipes, and cold-drawn seamless steel pipes. Four cate...
Industry News

How to reduce the loss of seamless steel pipes?

2023-12-18 15:13:49
The application range of seamless steel pipes(astm a106 steel pipes) is becoming wider and wider. In the whole process of applying seamless steel pipes, how should people keep the level of seamless st...
Industry News

How to reduce welding distortion?

2023-12-18 15:13:50
The following principles can be followed to minimize the occurrence of welding deformation.1. Do not over solderThe more metal filled in the welding point, the greater the deformation force will be ge...
Industry News

Seamless steel pipe pickling process

2023-12-18 15:13:51
1. Commonly used media for seamless steel pipe pickling:Sulfuric acid, nitric acid, phosphoric acid, hydrofluoric acid. When pickling, be sure to add pickling corrosion inhibitor to prevent the acid f...
Industry News

How to identify inferior seamless steel pipes from the appearance?

2023-12-18 15:13:53
Because of the high cost performance of seamless steel pipes (astm a106 gr b), there are more and more low-quality seamless steel pipes on the market. Consumers will buy fake and inferior seamless ste...
Industry News

The welding process of seamless steel pipe(ASME SA53)

2023-12-18 15:13:54
The welding process of seamless steel pipe(ASME SA53) includes: heating before welding, heat treatment after welding, quenching.1. HeatingBefore the seamless steel pipe arc welding, the key is to heat...
Industry News

Seamless steel pipes and cold treatment

2023-12-18 15:13:55
If the cold treatment method selected for seamless steel pipes is not correct, its performance will be affected to a certain extent. Therefore, preventive measures must be taken during the cold treatm...
Industry News

Submerged arc welding process of steel pipe

2023-12-18 15:13:57
The submerged arc welding process is suitable for the requirements of heavy industrial applications such as pipelines, pressure vessels and tanks, locomotive manufacturing, heavy construction, and exc...
Industry News

What are the manufacturing processes of straight seam steel pipes?

2023-12-18 15:13:57
Straight seam steel pipes can be divided into high-frequency straight seam steel pipes(ERW steel pipes) and submerged arc welded straight seam steel pipes(SSAW steel pipes) according to the production...
Industry News
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Cangzhou Shenlong Pipe Manufacturing Co., Ltd. is a company& supplier& manufacturer& factory specialized in the production, processing and sales of various steel pipes, such as seamless pipe, welded pipe, straight seam steel pipe, spiral welded steel pipe, hot galvanized steel pipe, coating steel pipe, stainless steel pipe, and pipe fittings, the production base is located in Cangzhou.

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E-mail: info@pipesl.com

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