Chemical Composition
0.22
%  (maximum)  
0.55
%  (maximum)  
97 to 100
%    (estimate)
1.6
%  (maximum)  
0.03
%  (maximum)  
0.03
%  (maximum)  
0.55
%  (maximum)  
1) Cast analysis.
2) The steel shall be supplied in the fully killed condition.
3) For long products, the maximum S content may be increased for improved machinability by 0.005 % by agreement if the steel is treated to modify the sulfide morphology and if the chemical composition shows minimum 0.0020 % Ca.
4) The maximum value for N does not apply if the chemical composition shows a minimum total Al content of 0.020 %, or alternatively minimum 0.015 % soluble Al or if sufficient other N-binding elements are present. In this case, the N-binding elements shall be mentioned in the inspection document.
5) Cu content above 0.40 % can cause hot shortness during hot forming.
6) Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one.
 
Mechanical Properties
DimensionsYield Strength (lbf/ft^2)Ultimate Tensile Strength (lbf/ft^2)Elongation (% strain)
Thickness, ≥ 5 to ≤ 10 mm≥ 1.09e71.32e7 to 1.98e7≥ 6
Thickness, > 10 to ≤ 16 mm≥ 9.4e61.21e7 to 1.84e7≥ 7
Thickness, > 16 to ≤ 40 mm≥ 7.31e61.11e7 to 1.78e7≥ 8
Thickness, > 40 to ≤ 63 mm≥ 7e61.04e7 to 1.61e7≥ 9
Thickness, > 63 to ≤ 100 mm≥ 6.58e69.82e6 to 1.55e7≥ 9

6.58e6
lbf/ft^2  (minimum)  
9.82e6 to 1.55e7
lbf/ft^2    
9
% strain  (minimum)  
Cold drawn (+C temper)
 
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