US2019153567A1PendingUtilityA1

Aluminum casting alloy

Assignee: KSM CASTINGS GROUP GMBHPriority: Nov 17, 2017Filed: Nov 15, 2018Published: May 23, 2019

Est. expiryNov 17, 2037(~11.3 yrs left)· nominal 20-yr term from priority

Inventors:Sebastian Uschner

C22C 21/04C22C 21/02C22F 1/043

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References

Claims

Abstract

An Al casting alloy contains at least five of the following alloying components: Si: 6.0 to 8.5 wt %; Mg: 0.3 to 0.8 wt %; Cr: 0.05 to 0.35 wt %; Fe: 0.05 to 0.25 wt %; Mn: 0.1 to 0.8 wt %; Cu: 0.05 to 0.50 wt %; Sr: 0.005 to 0.030 wt %; Zr≤0.15 wt %; Zn: ≤0.15 wt %; admixtures (total): <0.2 wt %; in each case made up to 100 wt % with Al.

Claims

exact text as granted — not AI-modified

1 . An aluminum casting alloy, which contains at least five of the following alloying components:
 Si: 6.0 to 8.5 wt %   Mg: 0.3 to 0.8 wt %   Cr: 0.05 to 0.35 wt %   Fe: 0.05 to 0.25 wt %   Mn: 0.1 to 0.8 wt %   Cu: 0.05 to 0.50 wt %   Sr: 0.005 to 0.030 wt %   Zr≤0.15 wt %   Zn: ≤0.15 wt %   Admixtures (total): &lt;0.2 wt %   
       in each case made up to 100 wt % with Al. 
     
     
         2 . The aluminum casting alloy according to  claim 1 , wherein Si is present in a content of at least 6.3 wt %. 
     
     
         3 . The aluminum casting alloy according to  claim 1 , wherein Si is present in a content of at most 8.0 wt %. 
     
     
         4 . The aluminum casting alloy according to  claim 1 , wherein Mg is present in a content of at least 0.35 wt %. 
     
     
         5 . The aluminum casting alloy according to  claim 1 , wherein Mg is present in a content of at most 0.75 wt %. 
     
     
         6 . The aluminum casting alloy according to  claim 1 , wherein Mn is present in a content of at least 0.2 wt %. 
     
     
         7 . The aluminum casting alloy according to  claim 1 , wherein Mn is present in a content of at most 0.75 wt %. 
     
     
         8 . The aluminum casting alloy according to  claim 1 , wherein Cr is present in a content of at least 0.07 wt %. 
     
     
         9 . The aluminum casting alloy according to  claim 1 , wherein Cr is present in a content of at most 0.20 wt %. 
     
     
         10 . The aluminum casting alloy according to  claim 1 , wherein Fe is present in a content of at least 0.07 wt %. 
     
     
         11 . The aluminum casting alloy according to  claim 1 , wherein Fe is present in a content of at most 0.22 wt %. 
     
     
         12 . The aluminum casting alloy according to  claim 1 , wherein Cu is present in a content of at least 0.10 wt %. 
     
     
         13 . The aluminum casting alloy according to  claim 1 , wherein Cu is present in a content of at most 0.45 wt %. 
     
     
         14 . The aluminum casting alloy according to  claim 1 , wherein Sr is present in a content of at least 0.007 wt %. 
     
     
         15 . The aluminum casting alloy according to  claim 1 , wherein Sr is present in a content of at most 0.025 wt %. 
     
     
         16 . The aluminum casting alloy according to  claim 1 , wherein the admixtures are present in total in a content of at most 0.18 wt %. 
     
     
         17 . The aluminum casting alloy according to  claim 1 , further comprising other admixtures present in total in a content of at least 0.01 wt %. 
     
     
         18 . The aluminum casting alloy according to  claim 1 , wherein Zr is present in a content of at most 0.05 wt %. 
     
     
         19 . The aluminum casting alloy according to  claim 1 , wherein Zr is present in a content of at least 0.001 wt %. 
     
     
         20 . The aluminum casting alloy according to  claim 1 , wherein Zn is present in a content of at least 0.001 wt %. 
     
     
         21 - 23 . (canceled)

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