Chemical Composition
Base Element
C (Carbon)
0.15
%  (maximum)  
Cr (Chromium)
2.65 to 3.35
%    
Fe (Iron)
94.3 to 96.3
%    (estimate)
Mn (Manganese)
0.3 to 0.6
%    
Mo (Molybdenum)
0.8 to 1.06
%    
Si (Silicon)
0.5
%  (maximum)  
Balance
Composition Note
Fe 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
207
MPa    
Ultimate Tensile Strength
414
MPa    
Elongation
30 to 100
% strain    
Rockwell Hardness B scale
85
   
 
Other Information
Material Class
Country
USA
Description
Annealed: 60,000 TS min; 30,000 YS min; 30 El min; 85 HRB max. Better creep properties and corrosion and oxidation resistance than CROLOY 2. Oxidation resistant to 1175 F in air.
Designation
B&W CROLOY 3M (T/P 21)
Specification Type
Specification Status
Source
Available forms
Similar Alloys
 
Links
 



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