High Expansion Coefficient Steels
High Expansion Coefficient Steels
(OP)
I am in the UK and would like to find a source of steel with a expansion coefficient in the region of 20?m/m.°C, preferably in plate form (although larger section bar, which could be forged flat could be acceptable).At the moment we are using austenitic stainless, but ideally need to increase the expansion.
Our primary supplier of metal cannot get hold of AMS 5623 and the lead time on Aubert & Duval's GD223 is too long.
I would appreciate any advice on alternative steels with expansion coefficients around this value or possible suppliers I could try.
Thank you in advance.
Our primary supplier of metal cannot get hold of AMS 5623 and the lead time on Aubert & Duval's GD223 is too long.
I would appreciate any advice on alternative steels with expansion coefficients around this value or possible suppliers I could try.
Thank you in advance.





RE: High Expansion Coefficient Steels
Michael McGuire
http://stainlesssteelforengineers.blogspot.com/
RE: High Expansion Coefficient Steels
It is really annoying that you both use "m" once for Micro meter and once for meter. Why not write 0.000020 m/m?
RE: High Expansion Coefficient Steels
Apologies for causing your annoyance - I cut and pasted my message from Word and unfortunately I did not spot that the Mu did not reproduce correctly.
RE: High Expansion Coefficient Steels
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Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: High Expansion Coefficient Steels
The 300 series alloys is the fall back option at the moment, should I fail to secure a source of steel with higher expansion than these.
I appreciate the likely higher cost, but this is for a motorsport application and performance in service is of primary importance.
RE: High Expansion Coefficient Steels
RE: High Expansion Coefficient Steels
There are many common brass grades with values that are about 20.
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Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm
RE: High Expansion Coefficient Steels
The application is as a stiffening plate fixed to aluminium components. Therefore I wish to maximise the modulus, which rules out aluminium. I did consider brass, but again the reduced modulus is a factor.
The part is stiffness rather than strength limited and therefore strength of the material is not a major concern. Also corrision resistance is not a priority- it can be painted!