Chemical Composition
Base Element
C (Carbon)
0.32
%  (maximum)  
Fe (Iron)
97.7 to 98
%    (estimate)
Mn (Manganese)
1.5
%    
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
345 to 621
MPa    
Ultimate Tensile Strength
552 to 827
MPa    
Elongation
14 to 22
% strain    
Brinell Hardness
150 to 210
   
 
Other Information
Material Class
Country
USA
Description
Cast: 80,000-120,000 TS; 50,000-90,000 YS; 14-22 El; 150-210 HB; 30-35 RA. For general and structural applications, gears, housings. Good weldability. ASTM A148.
Designation
BIRDSBORO-MM
Specification Type
Specification Status
Source
Available forms
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