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Manganese steel, 40Mn15S12, IS 3930
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Chemical Composition
Base Element
Fe (Iron)
C (Carbon)
0.35 to 0.45
%
Fe (Iron)
97.4 to 98.3
%
(estimate)
Mn (Manganese)
1.3 to 1.7
%
P (Phosphorus)
0.035
% (maximum)
S (Sulfur)
0.08 to 0.15
%
Si (Silicon)
0.25
% (maximum)
Composition Note
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
Yield Strength
500
MPa (minimum)
Ultimate Tensile Strength
700 to 850
MPa
Elongation
18
% strain (minimum)
Rockwell Hardness C scale
53
(minimum)
Other Information
Material Class
Ferrous Alloy
Alloy Family
Alloy Steel
Alloy Group
Manganese steel
Alloy Sub-Group
Manganese steel
Country
India
Standards Body
BIS (India)
Description
Alloy steel for flame and induction hardening; hardened and tempered.
Designation
40Mn15S12
Specification Type
Standard
Specification
IS 3930
Specification Year
2004
Specification Status
Active
Specification Status Notes
active 2004
Source
Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006
Available forms
Wrought
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Organizations
Bureau of Indian Standards (BIS)
No warranty is given for the accuracy of these data
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