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A pipe thickness chart for pipes comes in different sizes and schedules, so you can easily check and look into how thick the pipe wall actually is at any given size. This article gives you that chart in both millimetres and inches, then goes further than a simple lookup table.…

Pipe schedule (SCH) is a standardized number that defines a pipe’s wall thickness for a given Nominal Pipe Size (NPS), with higher numbers meaning thicker walls and greater pressure capacity.. Some of the typical schedules include SCH 5, SCH 10, SCH 40, SCH 80, SCH 160 and XXS. The different…

Pipe and tube are virtually identical, but pipe is a product of nominal pipe size (NPS) for fluid conveyance applications while tube is a product of outside diameter (OD) and wall thickness for exact-fit mechanical, heat transfer and instrumentation applications. The two words are used interchangeably in everyday speech, and…

Pipe material selection for chemical, marine and high-temperature service comes down to one question: what specific way will this service attack or stress the pipe, and which material actually resists that mechanism? It is not a matter of picking the “best” material in general terms, since the alloy that performs…

Quick Answer Inconel 625 is the corrosion alloy. Inconel 718 is the strength alloy. 625 is solid-solution strengthened, welds readily and holds up in seawater, acids and chloride environments, but its strength above roughly 650°C is modest. 718 is age-hardened and roughly twice as strong at room temperature, but it…

Quick Answer All three are carbon steel pipe specifications with similar strength, and they’re separated by service temperature and manufacturing route rather than by grade strength. A106 is seamless pipe for high-temperature service. A53 covers welded and seamless pipe, black or galvanised, for general mechanical and pressure use. A333 is…

Quick Answer Schedule 40, 80 and 160 are wall-thickness series, not pressure ratings. For any given NPS the outside diameter stays fixed. The wall gets thicker as the schedule number climbs, so the bore gets smaller. A higher schedule usually means the pipe can handle more pressure, but the actual…

Quick Answer 2205 is the standard duplex grade and covers the large majority of duplex applications. 2507 is more highly alloyed (more chromium, more molybdenum, roughly twice the nitrogen), which pushes its PREN from around 35 up to around 42 and makes it suitable for genuine seawater and severe chloride…

A two inch pipe does not measure two inches across. Its outside diameter is 60.3 mm, and it has been that number for longer than most of the plants using it have been standing. Your tape measure is fine. Nominal Pipe Size is a designator, not a dimension, and that…

Pipe weight is not a number you look up. It is a number you produce, from two figures already on the drawing, using one line of arithmetic that most buyers have never actually been shown. Take the outside diameter, subtract the wall thickness, multiply the result by the wall thickness,…