Pipeline material selection
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I would appreciate expert advice: For a high-pressure steam pipeline with a design pressure of 11.0 MPa and a design temperature of 420°C, what material should be used? The pipe diameter is approximately DN550!
12Cr1MoV is acceptable, or ASTM A335 Gr. P22 can be used
12Cr1MoV will work. I’ve calculated the wall thickness; it’s estimated to be 39 mm, which is too thick, isn’t it?
Floor 3 is very accurate and detailed; give him a big thumbs up!
15CrMo or 12Cr1MoV can be used, but their allowable stress at high temperatures is too low; as a result, the wall thicknesses required for calculations are extremely large, at 40–50 mm each ? ? ? ?
I calculated it using 15CRMO material as well; it’s around 36
15CrMo or 35CrMoA can be used
12Cr1MoV can be selected
What was said on the second floor is great; Beiming Yu’s points are even more reasonable
Yes, the wall thickness is too thick; isn’t there any other option?
12Cr1MoV can be used.