Novice problems
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I would like to ask: Can a container with an inner diameter of 300 only use pipes, and not sheets? It is said that a inner diameter of 300 is too small to use a rolling press. And there are no pipes of size 300. Only standard pipes larger than 300 can be used. Is that right? ? ?
There should be ready-made DN 300 steel pipes, which is convenient
Small coiling machines can also be used for coiling. It’s quite difficult for our factory to work with certain special stainless steel tubes, so we use sheets instead; the minimum size that can be processed is 200. For ordinary materials, there’s no need for such methods.
I really don’t know; I’ll learn it a bit, hehe!
It’s entirely due to production costs, especially with such fierce competition in the machinery industry these days.
A 300-mm steel pipe will do
It’s sufficient to choose steel pipes with a diameter of 300, because if sheet metal is chosen, the cost will actually be higher! For economic reasons, coil form is not chosen, but it’s not impossible to use it
The title of the original poster’s question is incorrect; it shouldn’t use the term “beginner’s question” – the question should be clearly stated in the title.
When using pipes directly, cost is a concern; using sheets is time-consuming and labor-intensive. In cases where pipes are already available, they should be preferred. When the material is special and no corresponding pipes exist, then sheet rolls should be used. If the pipe diameter is larger than 300, a larger standard pipe can be chosen.
It can be rolled, but special treatment is required. Is it really necessary?
Coiled form is acceptable; as the people above mentioned, it only increases costs. Moreover, coiled sheet metal surely cannot withstand as much pressure as seamless steel pipes, and coiled tubes are generally used in applications where high pressure is not present.
DN300 pipes are better
What the original poster meant by ‘pipe’ isn’t DN300, right? Although the outer diameter is DN300, the inner diameter is not DN300. Actually, I think it shouldn’t matter if there’s a slight difference. If sheet metal rolls are used, it will inevitably increase costs.
It is recommended that the poster use piping; we have used 300-grade piping before, and it’s definitely available. Using plates is troublesome.
Tubes of 300 can be purchased directly
There are seamless steel pipes with DN300; isn’t Ф325×10 good enough?/
Using sheet metal for rolling will cause damage to the sheet metal, right? It’s better to use tubes instead
Yeah, DN300 pipes are definitely available
How is it that there are no DN300 pipes? We use them frequently; the cost of rolling such pipes is high, so it’s not economical