Ferritic stainless steel cast iron, cast part using the ferritic stainless steel cast iron, and process for producing the cast part
US7914732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Oct 6, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2530/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides: a ferritic stainless steel cast iron including: Fe as a main component; C: 0.20 to 0.40 mass %; Si: 1.00 to 3.00 mass %; Mn: 0.30 to 3.00 mass %; Cr: 12.0 to 30.0 mass %; and one of Nb and V, or both of Nb and V in total: 1.0 to 5.0 mass %, the ferritic stainless steel cast iron satisfying the following formula (1):1400≦1562.3−{133WC+14WSi+5WMn+10(WNb+WV)}≦1480 (1)wherein, WC (mass %), WSi (mass %), WMn (mass %), WCr (mass %), WNb (mass %), WV (mass %) and WCu (mass %) are contents of C, Si, Mn, Cr, Nb, V and Cu, respectively; a process for producing a cast part from the ferritic cast steel; and the cast part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.