Regarding the negative deviation of steel plates
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Regarding the negative deviation of steel plates, is it possible to order stainless steel plates with custom thickness deviation requirements from the material manufacturer in order to reduce manufacturing costs? For example, when customizing 7mm thick stainless steel plates, the lower tolerance is required to be -0.1 and the upper tolerance +0.6...
Your two parties’ technical agreement stipulates that as long as the price is right, there is nothing that cannot be done
The poster can simply purchase plates with a thickness of 8mm; there’s no need to worry about deviations. They are easier to purchase than those with special requirements, and their price is likely even lower than that of sheets with special requirements.
It’s possible, but for orders with non-standard thicknesses (such as 7.0, 9.0, or 11.0), an additional fee will apply. The option mentioned on the 4th floor can also be considered, as it would result in a much lower price
This post was last edited by SDHZZXM on 2018-1-10 at 13:52. But what if our local inspection authorities disagree? It is said that it does not meet the GB/T24511 standard...
Sure, but that would require custom rolling. If the quantity is large, it won’t cost the steel mill much extra to carry out custom rolling for you, so it’s feasible; however, if the quantity is small, the price will definitely be very high. But in general, the regular specifications and thicknesses have lower prices.
For example, if the calculated thickness of the pressure vessel cylinder is 6.9 mm, and steel plates specified according to standards are used, then steel plates with a thickness of 8 mm will be required; whereas using custom-made steel plates with a thickness of 7 mm can significantly reduce costs.
Yes, it’s possible to manufacture large storage tanks; a lot of material is required, but they can be customized. If it’s a small container, very little material is needed, so it’s not worth it.
Yes, mass-produced ones work too; in any case, it’s better to have materials that can be customized in large quantities.