Monel 400 VS Oxygen

[hcjulien]

Hi,

My customer wants to use Monel 400 material for a piping transporting 100% oxygen pressurized inside a pressure piping having walls at 350F.

Do you see any issues? If yes, what are the references (standard, books, etc.) supporting your issues.

Thanks in advance for your help.

hcjulien

 

[EdStainless]

There are a number of standards for this service.
The one that comes to mind is the CGA.
You will need a standard for valves, fittings and other parts.
Maximum flow velocity is also an issue along with temp and pressure.
Monel is a good choice for this service. The old DMIC data from the 60's shows Monel resisting ignition in oxygen at high temperature and pressure.

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Plymouth Tube

 

[metengr]

I would suggest you review NFPA 50 and ASME B31.3.