430F or 430FR 4

[designmr]

I am trying to find out if anyone know how 430F or 430FR is manufactured.

Is it CAST or SINTERed process?

I wanted to make a part that will go in a vacuum environment.

Thank you.

 

[TVP]

I believe that this grade is most commonly produced in mill forms, meaning bars and rods that are rolled from cast billets. Here are some links from Cartech, one of the largest producers of this alloy:

http://cartech.ides.com/datasheet.aspx?i=103&e=64&c=TechArt

http://cartech.ides.com/datasheet.aspx?i=103&e=63&c=techart

http://www.carpenterdirect.com/techarticles.aspx?id=1562

 

[designmr]

Thank you, I will check out the links

 

[EdStainless]

I have only ever seen them as wrought products, though PM is possible but more expensive.

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Plymouth Tube

 

[arunmrao]

I have a naive question, are P/M or cast parts recommended for vacuum application?

_____________________________________
"The richer we have become materially, the poorer we have become morally and spiritually." Martin Luther King Jr

 

[EdStainless]

usually not unless they have been vacuum impregnated with a resin. Outgassing is a big issue.

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Plymouth Tube

 

[designmr]

thank you for all the replies.
Your right Ed, that is the concern here, outgassing.