Chemical Composition
Base Element
C (Carbon)
0.32 to 0.39
%    
Fe (Iron)
97.2 to 98.5
%    (estimate)
Mn (Manganese)
0.9 to 1.4
%    
P (Phosphorus)
0.06
%  (maximum)  
Pb (Lead)
0.15 to 0.35
%    
S (Sulfur)
0.15 to 0.25
%    
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≥ 1.04e71.38e7 to 2.01e7≥ 6
Thickness, > 10 to ≤ 16 mm≥ 9.19e61.29e7 to 1.92e7≥ 6
Thickness, > 16 to ≤ 40 mm≥ 8.15e61.25e7 to 1.88e7≥ 7
Thickness, > 40 to ≤ 63 mm≥ 7.52e61.21e7 to 1.75e7≥ 8
Thickness, > 63 to ≤ 100 mm≥ 7.1e61.17e7 to 1.71e7≥ 9
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Yield Strength
7.1e6
lbf/ft^2  (minimum)  
Ultimate Tensile Strength
1.17e7 to 1.71e7
lbf/ft^2    
Elongation
9
% strain  (minimum)  
Condition
Cold drawn (+C temper)
 
Other Information
Material Class
Alloy Family
Alloy Group
Alloy Sub-Group
Country
Standards Body
Description
Bright steel products
Designation
35SMnPb20
Specification Type
Specification
ISO 683-18
Specification Year
2014
Specification Status
Organization
International Organization for Standardization (ISO)
Available forms
Bar
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