Chemical Composition
Base Element
C (Carbon)
0.5
%  (maximum)  
Fe (Iron)
98.7 to 99.2
%    (estimate)
Mn (Manganese)
0.8
%    
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
40 to 60
ksi    
Ultimate Tensile Strength
80.1 to 95
ksi    
Elongation
18 to 28
% strain    
Brinell Hardness
140 to 180
   
 
Other Information
Material Class
Country
USA
Description
Cast: 80,000-95,000 TS; 40,000-60,000 YP; 140-180 HB; 30-40 RA; 18-28 El. For general and structural applications, gears, housings. Weldable with caution. AISI 1040.
Designation
BIRDSBORO-40 CN
Specification Type
Specification Status
Source
Available forms
Similar Alloys
 
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