Seeking advice: For pressure equipment, what thickness threshold requires the use of composite stainless steel plates?
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Is there any book or standard that specifies this?
It is generally over 12 mm, as specified in HGT 20581 \"Specifications for Material Selection of Steel Chemical Containers\". However, the decision still needs to be made by taking into comprehensive considerations such as the specific size and structure of the equipment, as well as the cost-effectiveness of the materials used; the standards provide only principle-based recommendations.
Generally, when it exceeds 12MM, composite panels should be considered.
But pay attention to the operating temperature at the grassroots level
Currently, the lead time for composite panels is generally long, and stainless steel isn’t expensive; so it depends on the size of the equipment – if it’s small, stainless steel is usually sufficient.
Generally, we follow the user’s requirements and let them specify the material; actually, the price of composite panels is similar to that of stainless steel
How much can it possibly differ? Taking 16mm 316L stainless steel and 12mm Q345R + 3mm 316L as an example. They don’t know the market price for composite panels.
Taking 16mm of 316L stainless steel and 12mm of Q345R plus 3mm of 316L as an example, how much of a difference is there?
The prices are roughly the same; composite panels aren’t cheap either, and the difference isn’t that big.