US2023035864A1PendingUtilityA1

Lead-free and antimony-free brass alloy

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Assignee: DIEHL BRASS SOLUTIONS STIFTUNG & CO KGPriority: Jul 27, 2021Filed: Jul 27, 2022Published: Feb 2, 2023
Est. expiryJul 27, 2041(~15 yrs left)· nominal 20-yr term from priority
Inventors:Florian SeussPatrick FeldnerHartmut RickenAlexander Dehnelt
C22F 1/08C22C 9/04
38
PatentIndex Score
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Claims

Abstract

A lead-free and antimony-free brass alloy contains 56 to 66% Cu, 0.1 to 1.5% Mg, less than 0.1% Pb, and a balance of Zn. Unavoidable impurities are also present. According to other embodiments, different amounts of As, P, Al, Sn, Cu, Mg, Pb, In and Zn may be provided as well.

Claims

exact text as granted — not AI-modified
1 . A lead-free and antimony-free brass alloy, comprising:
 56 to 66% Cu;   0.1 to 1.5% Mg;   less than 0.1% Pb;   a balance of Zn; and   unavoidable impurities.   
     
     
         2 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises less than 0.15% As. 
     
     
         3 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises less than 0.15% P. 
     
     
         4 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises less than 0.1% Al. 
     
     
         5 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises less than 0.1% Sn. 
     
     
         6 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises from 57% to less than 60% Cu. 
     
     
         7 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises from 57.5 to 58.5% Cu. 
     
     
         8 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises more than 0.5% Mg. 
     
     
         9 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises from 0.05% to 0.09% Pb. 
     
     
         10 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises less than 0.005% In. 
     
     
         11 . The lead-free and antimony-free brass alloy according to  claim 1 , which further comprises from 40 to 42.5% Zn.

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