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Thanks for all . The alloy are CD3MN and CE3MN. The nitrogen content is .19 and it's adding whit Iron Chromiun Nitro during the melting. I use magmasoftware to calculate the risering sistem but doesn't work. I concluded that the módulus of sleeves must be the doble than the others...

Thank you for your response, but it does'nt help me because we are pouring casting parts in sand moulds so I need to use risers and a good deoxidation to avoid porosity and skrinage. We are using an induction furnace whitout any injection. Whit the balance of chemical composition we have...

What is the best deoxidation for duplex stainless steel? And the risering? Is there a formule to calculares the risering for This kind of steel? Thanks in advance. Jandyr 13 Foundry

In terms to avoid porosity. My question is about melindre not welding.

Please, I need some help to eliminate porosity in valves of duplex steel (cd3mn). What's the better deoxidation for this kind of DSS. A lot of thanks.

How can I avoid the porosity in duplex steel? What is the best deoxidation for duplex steel?