Fe + 3%Si

[gieter]

Does anyone have any experience with casting of steel with 3% Si (C<0.04%)?
I'm interested in feeding behaviour, can it be flame cut, what thermal treatment is normaly required?

Thanks for helping me out,

Mik

 

[arunmrao]

Do you mean that you wish to melt pure iron with 3% Si,with very low carbon? It should be brittle I suppose, You can use knock off risers/feeders. Hence no need to flame cut the gates and risers.

Interesting application,what is it used for and will there be any machining? I plan to process a small quantity out of curiosity perhaps tomorrow.

I shall then share a few more experiences. As the metal is low in carbon,most of the silicon addition might be consumed as a degasser. You may need to compensate for this loss.

Hope this helps.

 

[EdStainless]

This isn't steel, it is ferroSilicon. Jokes aside, this is the standard silicon steel for transformer laminations. About 3.8% Si and <0.02% C. It is ductile enought to roll fine. It is so soft that it hot rolls very fast.
I am not sure about shrinkage. It should flow well.
You will need a deoxidizer so that you can control Si recovery and hit the desired level.
What finishing are you going to do?

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[gieter]

I don't know the application, but I suspect they want to draw a wire from this material.

Thanks for the hints. I will keep you informed.