Chemical Composition
Base Element
C (Carbon)
0.35 to 0.4
%    
Fe (Iron)
97.3 to 98.2
%    (estimate)
Mn (Manganese)
1.2 to 1.5
%    
P (Phosphorus)
0.06
%  (maximum)  
S (Sulfur)
0.24 to 0.33
%    
Si (Silicon)
0.4
%  (maximum)  
Balance
Composition Note
1) Cast analysis.
2) 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
Tabular Data
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DimensionsYield Strength (lbf/ft^2)Ultimate Tensile Strength (lbf/ft^2)Elongation (% strain)
Thickness, ≥ 5 to ≤ 10 mm≥ 1e71.46e7 to 1.78e7 
Thickness, > 10 to ≤ 16 mm≥ 9.61e61.46e7 to 1.78e7 
Thickness, > 16 to ≤ 40 mm≥ 8.77e61.46e7 to 1.78e7≥ 16
Thickness, > 40 to ≤ 63 mm≥ 8.35e61.46e7 to 1.78e7≥ 16
Thickness, > 63 to ≤ 100 mm≥ 7.94e61.32e7 to 1.67e7≥ 16
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Yield Strength
7.94e6
lbf/ft^2  (minimum)  
Ultimate Tensile Strength
1.32e7 to 1.67e7
lbf/ft^2    
Elongation
16
% strain  (minimum)  
Condition
Quenched and tempered, peeled (+QT+SH)
Notes on Mechanical Properties
1) These values are also valid for the “Cold drawn + Quenched and tempered condition” (+C+QT).
 
Other Information
Material Class
Alloy Family
Alloy Group
Alloy Sub-Group
Country
Standards Body
Description
Bright steel products
Designation
38SMn28
Specification Type
Specification
ISO 683-18
Specification Year
2014
Specification Status
Organization
International Organization for Standardization (ISO)
Available forms
Bar
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