Page 7 of Steel Pipe News

In addition to generating electricity in winter, the thermal power plant also has the responsibility of central heating. The power plant uses the extraction steam or exhaust steam of the steam turbine...

1.3.2 Environmental cracking The maximum working pressure of most process pressure pipelines on offshore platforms can reach 10MPa, and that of some pipelines can reach 20MPa, which makes the pipelines...

Introduction As more and more oil and gas platforms are put into use, it is particularly important to ensure the safe production of oil and gas platforms. Studying the factors that affect the service...

1. NDT According to the requirements of ASME BPV Ⅸ-2015 standard, the appearance, ultrasonic and magnetic particle inspection were carried out after welding, and the results were all qualified. The appearance...

At present, the welding of carbon steel pipes with small diameters mainly adopts manual argon arc welding processes. In engineering projects, such pipelines have the characteristics of small diameters,...

The uniform temperature of the pierced billet after rolling by the pipe mill generally cannot be guaranteed, and it is difficult to meet the requirements of the final rolling temperature of the pierced...

The production of hot-rolled seamless steel pipes generally requires two heating processes from the billet to the finished steel pipe, that is, the heating before the piercing of the billet and the pierced...

4. Pickling and passivation of stainless steel pipelines 4.1 Requirements for pickling passivation By pickling, the oxide scale formed by high-temperature operations such as heat treatment and welding...

Pits and grooves of tube blanks The reasons for the pits and grooves in the tube blank: on the one hand, they may be caused by the crystallization process of the casting blank, which is related...

1. Defects and prevention of tube blanks The tube blanks used in the production of seamless steel tubes can be continuous casting round tube blanks, rolling (forging) round tube blanks, centrifugal...

Tubes are hollow and have circular cross-sections, which are used for conveying media such as fluids, particles, powders and others. The term Pipe is different from tube, because...

Abstract: Stainless steel pipelines in LNG projects will inevitably be damaged during transportation, hoisting or prefabrication welding. In order to repair and protect stainless steel pipelines...