Questions regarding GB/T24511-2017
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I have a question: since GB24511-2017 is now in effect, what should be done with the stainless steel plates that comply with GB24511-2009? If the quality certificate is reviewed, and it meets the requirements of GB24511-2017, can it be used?
Specifically, discuss this with the inspection personnel and provide proof that it was purchased before the new standard was issued. Generally speaking, once it’s known that execution is imminent, people usually don’t order too much.
Upon reinspection, if it meets GB/T24511-2017 standards, it can be used
Compared to 2009, the chemical composition and thickness requirements became stricter in 2017
Check and accept it against current standards. .
The transition period for GB/T24511-2017 was quite long, and it’s been that way up to now; there are still sheets made in accordance with GB/T24511-2009. I believe that newly manufactured pressure vessel equipment must comply with GB/T24511-2017; otherwise, it will not pass the inspection. The GB/T24511-2009 board is still used for non-class devices, I guess.
Compare with the new standards; if it meets the new standards, contact the design unit to go through the substitution procedures.
After the standard is issued, there is a transition period of over half a year. In principle, once the new standard comes into effect, plates made under the old standard cannot be used in pressure vessels anymore.
Old-standard plates are used for atmospheric pressure vessels, while pressure vessels should be purchased in accordance with the new standards.
It is best to repurchase steel plates that meet the new standard; the old plates can be used for non-standard equipment or for accessories that do not come into contact with any media
The old standard is used for equipment at atmospheric pressure, while the new standard is used for pressure vessels. If a comparison between the old and new versions is done, and both the on-site inspection team and the local supervisors in charge of equipment operation agree that it can be used, then it can be put into use. This estimation is quite troublesome