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Metric
CGS (Consistent)
FPS (Consistent)
IPS (Consistent)
SI (Consistent)
UK Imperial
US Customary
5145/ 5147, 44Cr2, DIN 17230
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Chemical Composition
Base Element
Fe (Iron)
C (Carbon)
0.42 to 0.48
%
Cr (Chromium)
0.4 to 0.6
%
Cu (Copper)
0.3
% (maximum)
Fe (Iron)
97.4 to 98.7
%
(estimate)
Mn (Manganese)
0.5 to 0.8
%
P (Phosphorus)
0.025
% (maximum)
S (Sulfur)
0.035
% (maximum)
Si (Silicon)
0.4
% (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
540
MPa
Ultimate Tensile Strength
780 to 930
MPa
Elongation
14
% strain
Other Information
Material Class
Ferrous Alloy
Alloy Family
Alloy Steel
Alloy Group
Chromium steel
Alloy Sub-Group
5145/ 5147
Country
Germany
Standards Body
DIN (Germany)
Description
QT 17-40 mm
Designation
44Cr2
Specification Type
Standard
Specification
DIN 17230
Specification Year
1980
Specification Status
Active
Source
Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006
Available forms
Wrought
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Organizations
Deutsches Institut fur Normung e.V. (DIN) (German Standardization Institute)
No warranty is given for the accuracy of these data
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