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.:
Date of Patent:
Jul. 04, 2023
Filed:
Jun. 04, 2019
Applicant:
Poongsan Corporation, Pyeongtaek-Si, KR;
Inventors:
Assignee:
Poongsan Corporation, Pyeongtaek-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 9/04 (2006.01); C22F 1/08 (2006.01);
U.S. Cl.
CPC ...
C22C 9/04 (2013.01); C22F 1/08 (2013.01);
Abstract
Disclosed is a high-strength free-cutting leadless copper alloy with excellent machinability and corrosion-resistance. The free-cutting leadless copper alloy contains 58 to 70 wt % of copper (Cu), 0.5 to 2.0 wt % of tin (Sn), 0.1 to 2.0 wt % of silicon (Si), a balance amount of zinc (Zn), and inevitable impurities but does not contain lead.