Company News

2024-02-26

What are the technical requirements for LSAW steel pipe?

The technical requirements and inspection of LSAW steel pipe are based on the GB3092 "Welded Steel Pipe for Low-Pressure Fluid Transport" standard.

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2024-02-23

Ovality and length of seamless carbon steel pipes

The ovality of seamless carbon steel pipe refers to the degree of deviation between the long axis and the short axis of the steel pipe section. Generally speaking, the smaller the ovality, the closer the shape of the steel pipe is to a circle.

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2024-02-22

Application areas of slotted casings

slotted casing is a metal pipe with long slots, usually used for transportation in oil fields, water wells and other fields. slotted casing is a method of cutting multiple longitudinal or spiral straight and staggered seams of certain specifications in various ways on oil casing or tubing.

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2024-02-21

How to choose well casing size?

Well casing size plays a vital role in well construction and operations in various industries including oil and gas, water supply, and geothermal energy extraction.

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2024-02-20

Thermal expansion smls pipe technology

Thermal expansion smls pipe is what we often call thermal expansion pipe. Steel pipes (seamless steel pipes) with relatively low density but strong shrinkage can be called thermally expanded pipes.

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2024-02-19

Characteristics of large diameter electric resistance welded pipe

The performance of Electric resistance welded pipe can well meet the requirements of long-distance pipeline transportation of oil and natural gas, so it is widely used in the field of transportation.

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2024-02-18

Energy saving of SSAW steel pipe for transporting fluids

The conveying fluid pipe took advantage of the seasonal changes in the temperature drop in late autumn and took reasonable measures to start and stop the cooling tower operating fan and the axial flow fan used for cooling in the pump room, effectively reducing power consumption.

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2024-02-01

How to check the quality of ssaw steel pipe?

SSAW steel pipes is made of strip steel coil as raw material, often warmly extruded, and welded by automatic double-wire double-sided submerged arc welding process, which belongs to a kind of welded pipe.

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2024-01-31

Why do seamless steel pipes bend inwards?

Inward folding is a common quality problem in the production of seamless steel pipes. It is an irregular distribution of flaky folds and spiral folds on the inner surface of the steel pipe, and the edges of the defects are mostly jagged.

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2024-01-30

Analysis of causes of oil well casing end cracking

CO2/H2S corrosion is a common corrosion type in the oil and gas industry. With the development of oil and gas fields such as CO2-containing deep wells and ultra-deep wells, the emergence of H2S-containing corrosive gases has made the service environment faced by downhole oil casings more demanding and complex.

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2024-01-25

Thickness tolerance of smls pipe

SMLS pipe is an important metal material widely used in petroleum, natural gas, chemical industry, electric power, aerospace and other fields. In order to ensure the quality and safety of smls pipes, relevant international implementation standards and thickness tolerances have been formulated.

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2024-01-24

What are the technical requirements for galvanized pipes?

In order to increase the service life of smls pipes or welded pipes, steel pipe manufacturers often choose galvanized pipes. There are two types of galvanized pipes: hot-dip galvanizing and electro-galvanizing. Hot-dip galvanizing has a thick galvanizing layer and has the advantages of uniform coating, strong adhesion, and long service life.