What does SCH 80 mean?

In construction, the numerical requirements have always been high. Because the accuracy of the numerical values has a great impact on the success of the project. Especially in foundation construction, the stability of the building may be problematic due to a numerical deviation, and it may collapse or tilt without knowing when. Therefore, construction workers must pay attention to the numerical values and be cautious. Next, let me introduce to you the SCH 80 (Schedule 80 Carbon steel pipe), which has been discussed a lot recently.

SCH 80 represents the wall thickness grade of the American standard seamless steel pipe. The wall thickness corresponding to different numbers will also be different. In the industry, this method is often used to replace numerical values, making it easier for everyone to record and use. When designing for some constructions, such accurate values are needed to enable the design to be successfully constructed. If the values are inaccurate, there may be a large gap and lead to failure.

In addition to SCH, which represents the wall thickness of American standard steel pipes, there are also other pronouns such as DN and NB that describe the diameter of steel pipes. DN represents the nominal diameter of the steel pipe in mm, and NB represents the British standard in imperial units.

We will use different ways to express it for different application situations.

SCH 80 means XS thickened pipe with pressure wall thickness less than DN200mm.

The method of expressing wall thickness by the inner diameter of carbon steel reducers stipulated by MSS and ANSI in the United States divides the wall thickness of pipes into three types:

1. Standard weight pipe is represented by STD, which is a carbon steel reducer with an inner diameter <DN250mm. Sch40 is an STD pipe.
2. The thickened pipe is represented by XS, which is a carbon steel reducer with an inner diameter <DN200mm. Sch80 is an XS pipe.
3. Extra thick pipes are represented by XXS, which are carbon steel reducers with an inner diameter <DN250mm. Sch120 is an XS pipe.

Extended information:

Domestic carbon steel reducers comply with American pipe standards: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; among them the most commonly used There are two types: STD and XS.

The internationally accepted pipe flange standards can be summarized into two different and non-interchangeable pipe flange systems: one is the European pipe flange system represented by Germany; the other is the American pipe flange system represented by the United States. system.

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