Selection of steam pipeline materials
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May I ask, for steam pipelines, how should one choose the appropriate pipe material depending on temperature and pressure?
Please refer to the process pipeline installation design manual, which provides relevant information.
It is mainly determined by temperature; pressure has a relatively minor impact. Carbon steel can be used at temperatures below 350 degrees, while alloy steel is required for higher temperatures.
Pipelines with low design pressure and operating temperatures generally use 20# steel, while those of higher grades use manganese steel.
Generally, 20, 15CrMo, 12Cr1MoV, P11, P22, P91, P92
Generally, 20 15CrMo, with carbon steel being the most common
Indeed, ordinary steam pipes are usually made of carbon steel; are there any that use stainless steel? Will the condensate water be cleaner?
May I ask which standard or manual this statement comes from?