Which standards does 316H comply with?
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I’m not sure if this is the right way to write it; the material numbers are a bit messy at the moment, with there being numerical codes, grade designations, and what could be considered common names as well According to GB24511-2009, there is S30409 (07Cr19Ni10) which is equivalent to 304H, but there is no corresponding designation for 316H. Does anyone know which standard 316H should follow?
If pressure vessels are used, there is no corresponding grade; you can use ASME materials.
What about pressure pipelines then? If it is used, are only imported materials used?
I don’t understand what you’re asking. We usually use 304 and 316; however, 316 is actually 316L, not 316H
Is ASME a material specifically used for pressure vessels? I downloaded one that was entirely in English not long ago; I couldn’t understand it. Is there any version in Chinese?
Yes, these are the more commonly used austenitic stainless steels; 304H and 316H are used in high-temperature environments.
Well, I learned something new – I thought that 316L had a lower carbon content than its counterpart 316H. It turns out that the temperature conditions under which they are used also differ; I’m not sure which standard should be applied
It seems that the domestic standards for container materials do not include the grade 316H; it is also not listed in the GB/T4238 standard for heat-resistant steels. We have no choice but to refer to the ASME standards.
Well, it seems so, but other sources say that 07Cr17Ni12Mo2 is the same as 316H; I’m not sure where that information comes from
Hehe, it probably evolved from 304H. By inference, 316H has a higher carbon content than 316; therefore, in domestic notation, this is represented by changing 06 to 07.
The carbon content of 316 is no more than 0.08%, while that of 316H is between 0.04% and 0.1%. The contents of other elements are almost identical; however, there seems to be a difference in their properties, which is quite puzzling. Moreover, since the standard includes 304H but not 316H, I’m not sure why; could it be that it’s not possible to produce it domestically?