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materials selection for reciprocating compressor

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kissjxp

Materials
Joined
Mar 18, 2007
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64
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CN
I have a question on the cylinders materials selection for a reciprocating compressor. It has 90 mol% Hydrogen.

Design pressure: 4600KPa
Design temperature: 90C; MDMT: -7 deg C.

The client choose nodular iron. Is it OK? I am worried about the temperature. Nomarlly, what is the lowest temperature we can use for the nodular iron?

Thanks.
 
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