Spring material Inconel

[Isha90]

Inconel X750 & X650, Which is the best out of two material for Spring used in Lift Check Valve, please

 

[EdStainless]

1. Which can you get?
2. Does corrosion resistance matter?
3. which is stronger?
What does the supplier suggest?

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P.E. Metallurgy, Plymouth Tube

 

[Isha90]

Valves are used in both Power & Process industry, High temperature & Corrosion application please

 

[dgallup]

I think Inconel 750 is for more common. Very hard to give specific recommendation when no specific information is given. What constitutes "best" to you?

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[WKTaylor]

Isha...

LOTS of data for X-750 [UNS N07750], which is generally recommended for aerospace applications... including springs
Go to

http://www.specialmetals.com/tech-center/alloys.html

... click on 'Inconel Alloys' tab... download data for X-750 TDS.

MatWeb Inconel Data sheets do NOT include X-650
INCONEL® Technical Data Sheets

Can't say anything about X-650... I cannot recall even hearing about it! I looked in my Metallic Materials Specification Handbook [4ed] and came-up 'dry'.

EdStainless: You have a clue-card where to find X-650 data?

Regards, Wil Taylor

o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
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[EdStainless]

To be honest the only X-650 data that I have is not for spring temper material.
As far as I know X650 is not an industrially significant alloy.
It would be common today to use alloys such as A286, 718, or even cold worked 600 or 625.

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P.E. Metallurgy, Plymouth Tube