Pressure vessel at 600℃, 316L was used in manufacturing
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A vessel with a design pressure of 0.6 MPa and a design temperature of 600°C was manufactured using 316L material. What should I do?
How is this possible? The design temperature for 316L should be below 450 degrees. How can there be such a problem?
It definitely won’t work; it fails at high temperatures. It is recommended to use Inconel 600 or Inconel 601, which are produced through centrifugal casting and offer resistance to high temperatures as well as corrosion under such conditions; they can handle chlorine gas without any problems
We conducted chemical analysis and spectral analysis, both of which confirmed that the material is 316L, but our factory’s quality assurance engineer approved its use.
Molybdenum steel will do..................
Molybdenum steel will do..................
Actually, it depends on the actual temperature of the medium in contact with the material you choose; if the operating environment is 600 degrees, it’s also necessary to consider whether there are any other supplementary protective measures
Even with double-standard plates, those that meet the chemical composition requirements of 316L cannot be used at high temperatures. The ability of austenitic stainless steel to withstand high temperatures is primarily determined by the C content; there is no other way around it. Let’s create one again. This one with the remaining length has proper uses for selling, right?
So, if there are corrosive gases present and the operating temperature is 650°C, what material would be suitable? The pressure is 120 KPa.
It is necessary to determine which corrosive gas it is in order to select the appropriate material.
316L material cannot be used at high temperatures of 600°C
316L has a low carbon content and low strength; therefore it cannot be used at temperatures above 450 degrees. Regular monitoring is necessary during long-term use to avoid accidents
One can’t rely solely on temperature; factors such as the medium also need to be considered
It can only be scrapped or have its usage requirements reduced.
Those made of nickel-based alloys can withstand high temperatures
316L is suitable for low temperatures only; it definitely won’t work, as its maximum operating temperature is 500 degrees. It has to be discarded or used under reduced conditions.
Those made of nickel-based alloys can withstand high temperatures
316 can be used, up to 700 degrees Celsius.
Why choose such expensive materials? It depends on what kind of medium you’re using; you might consider welding 316L onto a regular steel container. Did the original poster not get that right? Is it 316 or 316L?
The design temperature is 600°C; what is the operating temperature, and is there a lining inside the container?