logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12473617 B1

PDFFull Text
Date of Patent:
Nov. 18, 2025

Filed:

Jul. 23, 2020

Cast iron, in particular for components of disc brakes

Applicant:

Brembo S.p.a, Bergamo, IT;

Inventors:

Bozena Dudzik, Bergamo, IT;

Mariusz Bieronski, Bergamo, IT;

Fabiano Carminati, Bergamo, IT;

Assignee:

Brembo S.p.A., Bergamo, IT;

Attorney:

Marshall-Melhorn, LLC

Primary Examiner:

John A Hevey

Int. Cl.
CPC ...
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);
U.S. Cl.
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);
Abstract

The invention consists of a gray cast iron comprising carbon, silicon, vanadium, manganese, nickel, chromium, molybdenum, copper, sulfur, phosphorous, tin and titanium, wherein: the percentage by weight of carbon is from 3.70 to 3.90%; the percentage by weight of silicon is from 1.30 to 2.10%; the percentage by weight of vanadium is from 0.10 to 0.15%; the percentage by weight of manganese is from 0.60 to 0.90%; the percentage by weight of nickel is from 0.05 to 0.50%; the percentage by weight of chromium is from 0.20 to 0.35%; the percentage by weight of molybdenum is no more than 0.10%; the percentage by weight of copper is no more than 0.35%; the percentage by weight of sulfur is less than 0.10%; the percentage by weight of phosphorous is less than 0.10%; the percentage by weight of tin is less than 0.10%; the percentage by weight of titanium is no more than 0.01%; the remainder by weight being iron.

Find Patent Forward Citations

Loading…