lvy lee

lvy

Company

Permanent Steel Manufacturing Co.,Ltd


Website

https://www.permanentsteel.com/


Bio

I am a professional digital marketer and a content writer related to the steel pipe industry.


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Comparison of ERW and LSAW Steel Pipes

" ERW steel pipe " is a high-frequency straight seam resistance welded pipe. It is used to transport vapor and liquid objects such as oil and natural gas, and can meet various requirements of high and low pressure. At present, it plays a pivotal role in the field of transportation pipes in the world ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 9 days agoPress > erw steel pipelsaw steel pipeComparison

Precautions for Seamless Steel Pipe Production

Cold drawn precision  seamless steel tube  has the characteristics of no oxide layer on the inner and outer walls, high pressure without leakage, high precision, high smoothness, no deformation during cold bending, no flaring and no cracks, and antirust treatment on the surface. It is mainly used fo ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 12 days agoPress > Seamless steel pipeProductionPrecautions

Classification of Oil Casing Materials

There are many types, the basic ones are ordinary carbon steel , J55, L80, N80, P110, etc .; then there are more special materials, such as 3Cr, 9Cr, 13Cr, 22Cr, etc., which are mainly carbon dioxide-resistant; and materials that prevent hydrogen sulfide , Such as 90SS, 95SS, etc. In addition, high ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 16 days agoPress > oil casingMaterials

Differences Between Electric Resistance Welding and Electric Fusion Welding

ERW is the abbreviation of electric resistance welding . The welding method of ERW pipe and submerged arc welded pipe is significantly different. The pressure welding method without filler metal is adopted. The weld is not filled with other components, and the skin effect and the proximity effect o ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 20 days agoPress > Electric Resistance WeldingElectric Fusion WeldingEFW +1

Disadvantages of Outer Thick Tubing

1. Low processing efficiency, serious waste of factory capacity Although the thickened tubing increases the connection strength of the tubing, the thickening of the tubing must be achieved through the thick and secondary heat treatment process. The efficiency is extremely low, and once the thread ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 23 days agoPress > tubingOuter Thick TubingDisadvantages
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