Chemical Composition
Base Element
B (Boron)
0.0008 to 0.005
%    
C (Carbon)
0.27 to 0.33
%    
Cr (Chromium)
0.15 to 0.25
%    
Fe (Iron)
97.3 to 98.4
%    (estimate)
Mn (Manganese)
1.1 to 1.4
%    
Mo (Molybdenum)
0.1
%  (maximum)  
Ni (Nickel)
0.2
%  (maximum)  
P (Phosphorus)
0.025
%  (maximum)  
S (Sulfur)
0.02
%  (maximum)  
Si (Silicon)
0.1 to 0.4
%    
 



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