What are the differences between domestic British standard pipe specifications and American standard pipe specifications?
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What are the differences between domestic British standard pipe specifications and American standard pipe specifications? What are the differences between domestic British standard pipe specifications and American standard pipe specifications? For example, American standard pipe specifications include 4\" SCH120, (φ114.3X11.13); 10\" SCH80, (φ273X15.09), while domestic British standard pipe specifications are φ114.3X11; φ273X16. Can I write whatever I want in the table?
Due to different standards, there are slight variations in the outer diameter and wall thickness of the pipes.
Actually, the outer diameter is simply rounded from inches to metric units; the difference isn’t significant. The wall thickness varies quite a bit; the American standard uses SCH, which is determined based on factors such as pressure. For specific conversion, refer to Appendix A of the HG/T20592-20635 standard on necked butt-welded flanges in the Central American system.