What is the maximum temperature that the 12Cr1MoVG material used in main steam pipes can withstand? How long can it last?
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As the title indicates, the material of the main steam pipeline is 12Cr1MoVG with a diameter of 426×36. I’ve found that the maximum temperature this steel can withstand is 580°C, but I’m not sure what the time limit at this temperature is Please, someone expert can help
The operating temperature for 12Cr1MoVG reaches 580℃
This temperature is the temperature that the material can withstand while operating continuously
The duration for which it can withstand such conditions depends on creep behavior (refer to the DL specifications); if creep exceeds acceptable limits, the material must be replaced. There is no specific time requirement – these materials are only guaranteed to not undergo any chemical or physical changes at 580°C
Thank you all for your answers; I’ve learned a lot from them
This steel pipe can be used at temperatures up to 580°C. However, according to the operating procedures for boiler operations, the temperature of the superheater is not allowed to exceed 545°C, and this limit cannot be exceeded for more than 10 minutes – such rules are established for the protection of the equipment.