Chemical Composition
Base Element
C (Carbon)
0.4 to 0.5
%    
Cr (Chromium)
0.9 to 1.2
%    
Fe (Iron)
94 to 96
%    (estimate)
Mn (Manganese)
0.15 to 0.45
%    
Mo (Molybdenum)
0.15
%  (maximum)  
P (Phosphorus)
0.025
%  (maximum)  
S (Sulfur)
0.02
%  (maximum)  
Si (Silicon)
0.8 to 1.1
%    
V (Vanadium)
0.1 to 0.3
%    
W (Tungsten)
1.7 to 2.3
%    
 



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