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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More items from lvy


Comparison of ERW Welded Pipe and Seamless Steel Pipe (tested by PetroChina Pipe Institute)

1. Outer diameter tolerance ERW steel pipe : It is cold-formed and sizing is completed by reducing the diameter by 0.6%. The process temperature is basically constant at room temperature. Therefore, the outer diameter is controlled accurately and the fluctuation range is small, which is helpful to ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 7 days agoPress > ERW Welded PipeSeamless steel pipePetroChina Pipe +1

Processing of High-strength Petroleum Casing Wire Tube Above N80Q Grade

The production method of high-strength petroleum casing (above N80Q grade) is generally completed by steelmaking, rolling, quenching and tempering, and pipe processing. During the production process, the outer diameter of the tube blank is controlled during the processing of the wire. The requiremen ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 8 days agoPress > Petroleum CasingN80 casing pipeWire processing

Testing Methods of Oil Casing Manufacturers

What are the detection methods of oil casing pipe ? Let's take a brief look: 1. Ultrasonic testing When ultrasonic waves are spread in the tested raw materials, the acoustic characteristics of the raw materials and the changes in the internal organization have a positive impact on the spread of t ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 13 days agoPress > oil casingTesting MethodsManufacturers

Comparison of Performance and Technical Indicators of ERW and SML

1. Tube blank quality ERW steel pipe  special steel has high purity. Through de-S, de-P, de-aeration, Ca treatment and other methods, the S and P content can be controlled below 0.005%, the N content can be controlled below 0.008%, the shape of the inclusions can be controlled to be spherical and t ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 15 days agoPress > ERWSMLSTechnical Indicators +1

Hardness Test Method for Seamless Steel Pipe

The hardness test of  seamless steel tube  can be divided into two methods, one is tensile test and the other is hardness test. The following small series is introduced in detail for everyone: The seamless steel pipe produced by the tensile test, the tensile tester of the sample will be pulled to t ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 22 days agoPress > Seamless steel pipeHardness Test
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