Could some expert help me figure out what materials these two are made of?
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Could some expert tell me what materials these two are made of? What are the standards? Steam drum of circulating fluidized bed boiler: material P335GH; high-temperature section of high-temperature superheater: material SA-213 T91
It’s clearly not a pipe that meets national standards; relevant information can probably be found in a comparison table of national standard pipes and foreign-made pipes
P335GH is equivalent to 16MnG (345R); SA-213 T91 is an ASME standard and is equivalent to the domestic material 10Cr9Mo1VNb~~
P335GH is the material number according to the EU EN10028 standard, while SA-213 T91 is according to the ASME standard
Thank you to the two experts above for their help