CAST IRON Russian patent published in 2018 - IPC C22C37/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to the field of ferrous metallurgy, particularly to cast iron compositions, which can be used in machine building. Cast iron contains, mass %: carbon 2.8–3.2; silicon 0.8–1.2; manganese 0.2–0.4; chromium 0.14–0.2; titanium: 0.1–0.2; nickel 1.2–1.6; copper 1.8–2.2; phosphorus 0.08–0.12; boron 0.04–0.08; vanadium 0.14–0.2; calcium 0.001–0.0012; aluminum 0.08–0.12; niobium 0.15–0.25; molybdenum 0.8–1.2; iron – the rest.

EFFECT: technical result is increasing of cast iron durability.

1 cl, 1 tbl