Should I use the new grades specified in GB/T4237-2007 when designing?
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As mentioned in the title, none of the design drawings I have seen so far adopt the new grades specified in GB/T4237-2007. I don’t know.* * Are there any requirements for the use of new and old grades of stainless steel materials? Similar to the implementation regulations of GB713-2008
It’s better not to use this new standard. Compared with the old standard, there is really no advantage.
It will be used after July 1st.
But that standard has already been implemented
Don't use this. The content of carbon, sulfur and phosphorus is higher than the old standard. Qin Xiaozhong said not to use it. They are compiling a new standard for pressure vessels.
The new standard GB/T4237-2007 has lower requirements than the old one, so it is best not to be used on pressure-bearing parts.
The phosphorus and sulfur content of both version 92 and version 07 do not meet the requirements of Article 11 of the regulations.