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Regarding the conversion relationship between Din and diameter

2021-05-28View Original

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Dear Haihao friends! Pipe DIN (Dia-inch) is a unit used to calculate the welding workload, that is, the welding equivalent; abroad it is called dynes. So, what is the diameter in inches equivalent to 1000 dynes? What is the conversion relationship and formula between dynes and diameter in inches? Which specification contains the calculation instructions? I hope fellow users can help answer this. Thank you very much, and I’ll give a high rating.
Reply #22021-05-28
Baidu search: For wall thicknesses over 8 mm, a simple formula can be used to calculate the welding equivalent for a single weld joint – Welding equivalent = Outer diameter * Wall thickness / 112. Is this formula correct? I couldn’t see the source of the formula, so I dare not trust it easily.
Reply #32021-06-05
Isn’t an inch of weld joint one welding equivalent?
Reply #42021-06-05
Do you know what kind of inch this is?
Reply #52021-06-06
This is an algorithm that is relatively easy for most people to understand, and its conversion is also straightforward; whereas the conversion of some other algorithms can be a bit more complicated
Reply #62021-06-11
In industrial piping, the term \"inch\" used to refer to the pipe diameter actually denotes 25.4 mm; for example, a 1-inch pipe has an inner diameter of 25.4 mm.

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