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Thermal expansionCarbon steel vs stainless steel

Thermal expansionCarbon steel vs stainless steel

Thermal expansionCarbon steel vs stainless steel

(OP)
At the Shigley- Mischke MECHANICAL ENGINEERING DESIGN
 a table states that the thermal expansion for carbon steel

is 10.8 E-6 in °C and 6.0E-6  in farenheit from 0 to 100 C

And for Stainless steel this values are

17.3 E-6 °C or 9.6 °F

Does any one know what kind of SS is .

I{m looking for a ferrous  alloy to have aboutt more than 50 %  Threma expansion coefiecent that the carbon steel at 650 °C
If possible a comercial trade  alloy.

Thanks in advance.








You can reach me at k281969@hotmail.com
but keep your post here for mutual benefits.
Pardal

RE: Thermal expansionCarbon steel vs stainless steel

type 304 stainless will give you just what you want. stay away from ferritic stainless which have similar coefficients to corbon steel.
data sheets on 304 are available at stainlesscenter.com

RE: Thermal expansionCarbon steel vs stainless steel

(OP)
mcguire:

Thanks for it.
I will see this site.


You can reach me at k281969@hotmail.com
but keep your post here for mutual benefits.
Pardal

RE: Thermal expansionCarbon steel vs stainless steel

(OP)
My task to do, is to generate a compression force between two plates when they rise it's temperature from ambient to 480°C
This  300 mm diameter round Sae 1010 plates 38 mm thick, will hold a stack of  about 100 each  Sae 1070 1mm thick to be flattened .
This, can be called sandwich, will be hold by a 40 mm round  SAE 4140 threaded bar  heat treated as a 12.9   grade bolt.
To build up a increasing compression , I intent to put a spacer over one plate and under the nut that will tighten all the array  , this spacer shall be of a material with a different thermal expansion from  the others components.
I thought on a aisi 304 hollow bar as it have a thermal exp coefficient about 17E-6 micro mm/meter/°c
 and the carbon and alloy steel had about 10e-6 .
My concern is about the behavior of all this array at the 480 C temperature, it will be about 4 hour since this temp is reached.  
The task to cope, is to avoid a loss on the compression, so all the 1070 plates are gathered side by side , so they will last flattened when this force is released,  of course that it will happen after the eat treatement.
Any comment will be granted.

You can reach me at k281969@hotmail.com
but keep your post here for mutual benefits.
Pardal

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