Chemical Composition
Base Element
C (Carbon)
0.5
%  (maximum)  
Cr (Chromium)
2
%    
Fe (Iron)
96.2 to 96.7
%    (estimate)
Mn (Manganese)
0.8
%    
Mo (Molybdenum)
0.5
%    
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
145 to 180
ksi    
Ultimate Tensile Strength
175 to 210
ksi    
Elongation
6 to 12
% strain    
Brinell Hardness
290 to 350
   
 
Other Information
Material Class
Country
USA
Description
Heat treated: 175,000-210,000 TS; 145,000-180,000 YP; 6-12 El; 12-30 RA; 290-350 HB; For general and structural castings, gears, shafts, housings. Tough, shock resistant.
Designation
BIRDSBORO-45A7
Specification Type
Specification Status
Source
Available forms
Similar Alloys
 
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