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US 2011/0211986 A1Published application
Ductile iron
OwnerTakashi Araiinventor
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Abstract
A ductile iron having superior high-temperature strength and oxidation resistance at temperatures exceeding 800° C. compared with conventional high Si and Mo ductile iron. The ductile iron comprises, in terms of mass ratio, carbon: 2.0 to 4.0%, silicon: 3.5 to 5.0%, manganese: not more than 1.0%, chromium: 0.1 to 1.0%, molybdenum: 0.2 to 2.0%, vanadium: 0.1 to 1.0%, and magnesium: 0.02 to 0.1%, with the remainder being composed of iron and unavoidable impurities.
Claims14
A ductile iron comprising, in terms of mass ratio, carbon:
- 2.0 to 4.0%, silicon:
- 3.5 to 5.0%, manganese:
- not more than 1.0%, chromium:
- 0.1 to 1.0%, molybdenum:
- 0.2 to 2.0%, vanadium:
- 0.1 to 1.0%, and magnesium:
- 0.02 to 0.1%, with a remainder being composed of iron and unavoidable impurities.
4 more elements
Dependencies are inferred from the claim text.