Chemical Composition
Base Element
C (Carbon)
0.05 to 0.15
%    
Co (Cobalt)
31.2 to 46.8
%    (estimate)
Cr (Chromium)
20 to 24
%    
Fe (Iron)
3
%  (maximum)  
Mn (Manganese)
1.25
%  (maximum)  
Ni (Nickel)
20 to 24
%    
Si (Silicon)
0.2 to 0.4
%    
W (Tungsten)
13 to 16
%    
Balance
Other elements
La 0.02-0.12
Composition Note
Co is listed as a Balance element for this material, but its % value is not listed in the specification. The value shown is a calculated one.
 
Mechanical Properties
Yield Strength
380
MPa    
Ultimate Tensile Strength
860
MPa    
Elongation
40
% strain    
 
Other Information
Material Class
Country
Description
Minimum values at 20 C: 860 N/mm**2 TS; 380 N/mm**2 YS; 40 El. For gas turbines, air heaters, furnace components, high temperature heat exchangers, valves and springs. Material No. 2.4683.
Designation
CONICRO 4023 W - ALLOY 188
Specification Type
Specification Status
Similar UNS Number
R30188
Source
Available forms
Similar Alloys
 
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