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Ductile cast iron, Class 3, ASTM A571/A571M
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Chemical Composition
Base Element
Fe (Iron)
C (Carbon)
2.2 to 2.7
%
Cr (Chromium)
0.2
% (maximum)
Fe (Iron)
61.5 to 67.8
%
(estimate)
Mg (Magnesium)
3.75 to 4.5
%
Mn (Manganese)
3.75 to 4.5
%
Ni (Nickel)
21 to 24
%
P (Phosphorus)
0.08
% (maximum)
Si (Silicon)
1.5 to 2.5
%
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
205
MPa (minimum)
Ultimate Tensile Strength
450
MPa (minimum)
Elongation
30
% strain (minimum)
Brinell Hardness
121 to 171
Other Information
Material Class
Ferrous Alloy
Alloy Family
Cast Iron and Iron Alloys
Alloy Group
Cast Iron
Alloy Sub-Group
Ductile cast iron
Country
USA
Standards Body
ASTM (USA)
Description
Austenitic ductile iron for pressure-containing parts for low-temp service.
Designation
Class 3
Specification Type
Standard
Specification
ASTM A571/A571M
Specification Year
2001
Specification Status
Active
Specification Status Notes
active 2001
Source
Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006
Available forms
Casting
Similar Alloys
Click here to find similar alloys
Links
Organizations
American Society for Testing and Materials (ASTM)
No warranty is given for the accuracy of these data
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