The issue of selecting series for seamless steel pipes
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There are 3 series of seamless steel pipes. How should one choose among these three series? Are there any relevant standards?
There is no requirement to use a specific series; choose according to needs. Also, for ease of procurement, it is advisable to choose the pipes that are recommended as preferred options; pay attention to the notes in small print
The chemical content varies in each series; please use with caution. . . . .
The series of steel pipes to be selected should be determined based on the design provided by the design institute, as different series have different requirements.
Seamless pipes for transporting fluids are divided into two series, namely Series I and Series II. For the I series, the outer diameter of the British standard pipes is 26.9 for DB20, 60.3 for DN50, 114 for DN100, and 323.9 for DN300. The II series features metric pipe outer diameters; for example, DB20 has a diameter of 25, DN50 has 57, DN100 has 108, and DN300 has 325.
Can the III series be considered as pipes for transporting high-pressure steam or used in high-pressure pipelines? Just now, brother 3L mentioned that the composition of each series varies. Is there any relevant documentation or standards available? Please let me know, thank you.
Currently, there are two views on the criteria for classifying this series: one is to differentiate by material, and the other is to differentiate by standard. Please give some suggestions
I also want to learn *it a bit. Let an expert give an introduction
Select based on flow rate and pressure conditions.
Each issue should be analyzed on a case-by-case basis; the key to choosing a series is to meet the current requirements, as well as to ensure easy installation and future maintenance