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ferritici e duplex

English translation: ferritic stainless steels/duplex stainless steels

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Italian term or phrase:acciai inossidabili ferritici e duplex
English translation:ferritic stainless steels/duplex stainless steels
Entered by: silvia b (X)

19:28 Jul 9, 2007
Italian to English translations [PRO]
Tech/Engineering - Metallurgy / Casting / stainless steel
Italian term or phrase: ferritici e duplex
...non solo acciai inossidabili austenitici, ma anche ferritici e duplex
Marinela Sandoval
United States
Local time: 23:23
ferritic stainless steels/duplex stainless steels
Explanation:
Ferritic stainless steels are highly corrosion resistant, but less durable than austenitic grades. They contain between 10.5% and 27% chromium and very little nickel, if any. Most compositions include molybdenum; some, aluminium or titanium. Common ferritic grades include 18Cr-2Mo, 26Cr-1Mo, 29Cr-4Mo, and 29Cr-4Mo-2Ni.

Duplex stainless steels have a mixed microstructure of austenite and ferrite, the aim being to produce a 50:50 mix although in commercial alloys the mix may be 40:60 respectively. Duplex steel have improved strength over austenitic stainless steels and also improved resistance to localised corrosion particularly pitting, crevice corrosion and stress corrosion cracking. They are characterised by high chromium (19-28%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels.

http://en.wikipedia.org/wiki/Stainless_steel
Selected response from:

silvia b (X)
Local time: 06:23
Grading comment
Grazie Silvia!
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +1ferritic stainless steels/duplex stainless steels
silvia b (X)


  

Answers


9 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
ferritic stainless steels/duplex stainless steels


Explanation:
Ferritic stainless steels are highly corrosion resistant, but less durable than austenitic grades. They contain between 10.5% and 27% chromium and very little nickel, if any. Most compositions include molybdenum; some, aluminium or titanium. Common ferritic grades include 18Cr-2Mo, 26Cr-1Mo, 29Cr-4Mo, and 29Cr-4Mo-2Ni.

Duplex stainless steels have a mixed microstructure of austenite and ferrite, the aim being to produce a 50:50 mix although in commercial alloys the mix may be 40:60 respectively. Duplex steel have improved strength over austenitic stainless steels and also improved resistance to localised corrosion particularly pitting, crevice corrosion and stress corrosion cracking. They are characterised by high chromium (19-28%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels.

http://en.wikipedia.org/wiki/Stainless_steel

silvia b (X)
Local time: 06:23
Native speaker of: Native in ItalianItalian
PRO pts in category: 12
Grading comment
Grazie Silvia!

Peer comments on this answer (and responses from the answerer)
agree  BristolTEc: Agreed
23 mins
  -> grazie di nuovo :)
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