US 12,473,617 B2
Cast iron, in particular for components of disc brakes
Bozena Dudzik, Bergamo (IT); Mariusz Bieronski, Bergamo (IT); and Fabiano Carminati, Bergamo (IT)
Assigned to Brembo S.p.A., Bergamo (IT)
Appl. No. 17/628,935
Filed by Brembo S.p.A, Bergamo (IT)
PCT Filed Jul. 23, 2020, PCT No. PCT/IB2020/056968
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/014404, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 102019000012738 (IT), filed on Jul. 24, 2019.
Prior Publication US 2022/0251691 A1, Aug. 11, 2022
Int. Cl. C22C 37/10 (2006.01); C21C 1/08 (2006.01); C21D 5/00 (2006.01); C22C 37/08 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/50 (2006.01); F16D 65/12 (2006.01)
CPC C22C 37/10 (2013.01) [C21C 1/08 (2013.01); C21D 5/00 (2013.01); C22C 37/08 (2013.01); C22C 38/002 (2013.01); C22C 38/008 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/50 (2013.01); F16D 65/125 (2013.01); C21D 2211/003 (2013.01); C21D 2211/005 (2013.01); C21D 2211/009 (2013.01); F16D 2200/0013 (2013.01)] 1 Claim
 
1. A grey cast iron consisting of carbon, silicon, vanadium, tungsten, manganese, nickel, chromium, molybdenum, copper, sulphur, phosphorus, tin, titanium, and iron, wherein
the percentage by weight of carbon is 3.75%,
the percentage by weight of silicon is 1.40%,
the percentage by weight of vanadium is 0.14%,
the percentage by weight of tungsten is 0.12%,
the percentage by weight of manganese is 0.85%,
the percentage by weight of nickel is 0.01%,
the percentage by weight of chromium is 0.35%,
the percentage by weight of molybdenum is 0.1%,
the percentage by weight of copper is 0.35%,
the percentage by weight of sulphur is <0.1%,
the percentage by weight of phosphorus is <0.1%,
the percentage by weight of tin is 0.09%,
the percentage by weight of titanium is 0.01%, and
the remainder by weight being constituted by iron.