Valve for CNG
Valve for CNG
(OP)
Hi, did anybody know the common material for CNG exhaust valve.
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RE: Valve for CNG
RE: Valve for CNG
RE: Valve for CNG
For example, 21-4N has 4 % nickel, Inconel 751 has 70 % nickel and Pyromet 31 has 57 % nickel.
RE: Valve for CNG
RE: Valve for CNG
RE: Valve for CNG
Oxide formers, Cr, Al, Ti Si are what protect at high temp.
High Ni alloys may have better strength, but that isn't the limiting factor in valves.
High Ni alloys will also have better resistance to carborization and sulfidation, neither of which should be factors.
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Plymouth Tube