In the PID diagram, what materials do the following codes represent respectively?
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In the PID diagram, what materials do the following codes represent respectively? Or from what standard: RK001, QK001, RA101, PK001, KK001 – 001 can be ignored; they correspond to different temperatures. But what do PK, QK, KK, RA mean, and how do they correspond to the materials used in China?
This may not be exactly the same in every design institute; it’s best to refer to the legend for details
The codes used in the designs by different design institutes vary. In our organization, the letter B in M1B denotes carbon steel, while the letter E in M1E denotes stainless steel; each letter and digit has its own meaning, which is usually specified in a material grade table
I got this drawing from a friend, so there is no material list; it’s classified as confidential, which is why that information isn’t available. I’d like to know about the corresponding pipe grades for this application. Generally, domestic design firms prepare material lists in the way you mentioned, but this manufacturing process is of foreign origin