Material selection for high-temperature and high-pressure vessels
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What type of pipe material should be used to manufacture a container with high-temperature water vapor as the medium, at 400 degrees, 25 MPA pressure, a volume of 30 L, and an inner diameter of around 200 mm? Is it okay to use 16Mn for the cylinder body and 16MnR for the head? This post was last edited by muquan on 2009-3-19 20:57]
What is 1Cr5MoⅣ material? What standards are being applied? Is it a pipe or a forged part? Are there any precautions to take when using it? Can 15NiCuMoNb5-6-4 (standard: EN10216-2) be used?
16Mn is acceptable, but corrosion needs to be taken into account
The use of 16Mn is not recommended, as it has a tendency to carbon graphitize at high temperatures.
For carbon steel and carbon-manganese steel, the tendency toward graphitization becomes a concern at temperatures above 425°C; the current temperature has not yet reached that level.