I would like to ask: for carbon steel flanges used in liquefied gas pipeline piping, can stainless steel flanges be used as a substitute?
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This post was last edited by Green Lotus on 2017-8-2 at 17:00. I would like to ask everyone: for carbon steel flanges used in liquefied gas pipeline installations, can stainless steel flanges be used as a substitute?
Both temperature and pressure need to be considered; replacement should not be done blindly. At normal pressure, it doesn’t matter
It is best to use the same material as the pipeline
Different materials have different expansion coefficients; even if they can be welded together, the weld seam is prone to cracking. It is recommended to use materials of the same type.
If the specifications and model are the same with only a difference in material, it’s of course okay to use the higher-grade one instead of the lower-grade one.
It is best to use the same material as the pipeline, otherwise weld cracks are likely to occur. Safety first.