What is the difference between SCH80 and SCH80S in pipe wall thickness grades?
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This post was last edited by flute6 on 2011-4-13 21:19. Seeking help: What is the difference between 80 and 80S in terms of pipe wall thickness grades? What does s mean? This post was last edited by shnan on 2008-1-26 23:47.]
s stands for stainless steel
Stainless steel is literally translated as stainless steel. 80S refers to the stress of stainless steel, while 80 relates to carbon steel
Those with an S are in accordance with the ASME B36.19 standard, commonly known as the stainless steel standard; those without an S are in accordance with the ASME B36.10 standard
Friend on the 4th floor, what you mean is: if SCH80S is chosen, it’s equivalent to using carbon steel pipes, only the specifications follow the ASME B36.19 standard. Is that correct? Thank you to all the friends above for their enthusiastic replies!
Replying to the person on floor 5: it can be understood in that way.
One is carbon steel, and the other is stainless steel
It should be noted that SCH80 and SCH80S are different for large-diameter pipes; meanwhile, in the design of main pipelines, the wall thickness of stainless steel pipes can also be denoted by SCH80.
SCH80 and SCH80S are merely designations for pipe wall thickness categories; the “s” indicates the standard wall thickness designation for stainless steel. In practice, the appropriate wall thickness category is chosen based on requirements – carbon steel can use SCH80S, while stainless steel can use SCH80. However, it should be noted that the pipe designation is related to its allowable stress, and it should be selected according to the design during construction.
First, take a look at SH3405-96; it contains information on the size ranges of steel pipes. There are tables showing the wall thickness and theoretical weight of austenitic stainless steel seamless pipes, with an ‘S’ added to those values. For carbon steel and alloy steel seamless pipes, no ‘S’ is used. This means that the presence of the ‘S’ indicates stainless steel, while its absence indicates carbon steel or alloy steel. Please make the distinction.:handshake
Check the second book on piping materials (3rd edition) – published by Sinopec Press. There is a note on page 13: those marked with “S” belong to the series of pipe designations for austenitic stainless steel pipes. This book was compiled by Mr. Zhang Dejiang and others, and it is based on China’s existing standards. Therefore, I think the “S” indicates that it refers to pipes made of austenitic stainless steel. :handshake Please give me some points, OP… encourage me a bit!