US2002004017A1PendingUtilityA1

Melting crucible

36
Priority: May 6, 2000Filed: May 2, 2001Published: Jan 10, 2002
Est. expiryMay 6, 2020(expired)· nominal 20-yr term from priority
Inventors:Brian Quayle
C22C 19/058F23G 2204/204F27B 14/10C03B 5/021C03B 5/06G21F 9/305F27B 14/061F23G 2209/18C03B 5/005Y02P10/25F23G 2202/20
36
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Claims

Abstract

A melting crucible is described, the crucible having a composition comprising in weight %: 24-32 Cr; 8-11 Fe; 0.15-0.25 C; 1.8-2.4 Al; 0.1-0.2 Ti; 0.05-0.12 Y; 0.010-0.10 Zr; 0.1 max. Mn; 0.5 max. Si; 0.1 max. Cu; Balance Ni apart from incidental impurities.

Claims

exact text as granted — not AI-modified
1 . A melting crucible, the crucible having a composition comprising in weight %: 24-32 Cr; 8-11 Fe; 0.15-0.25 C; 1.8-2.4 Al; 0.1-0.2 Ti; 0.05-0.12 Y; 0.01-0.10 Zr; 0.1 max. Mn; 0.5 max. Si; 0.1 max. Cu; Balance Ni apart from incidental impurities.  
     
     
         2 . A melting crucible according to  claim 1  wherein the chromium content lies in the range from 26 to 32 wt %.  
     
     
         3 . Use as a melting crucible of an alloy comprising in weight %: 24-32 Cr; 8-11 Fe; 0.15-0.25 C; 1.8-2.4 Al; 0.1-0.2 Ti; 0.05-0.12 Y; 0.01-0.10 Zr; 0.1 max. Mn; 0.5 max. Si; 0.1 max. Cu; Balance Ni apart from incidental impurities.  
     
     
         4 . Use as a melting crucible of an alloy according to  claim 3  wherein the chromium content lies in the range from 26-32 wt %.  
     
     
         5 . A melting crucible substantially as hereinbefore described with reference to the accompanying description and drawing.

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