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Miscellaneous high-alloy steel, KC30Fe20M, AFNOR NF A32-057
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Chemical Composition
Base Element
Fe (Iron)
C (Carbon)
0.3 to 0.6
%
Co (Cobalt)
48 to 52
%
Cr (Chromium)
25 to 30
%
Fe (Iron)
20
% (maximum)
Mn (Manganese)
1
% (maximum)
Mo (Molybdenum)
0.15
% (maximum)
Nb (Niobium)
2
% (maximum)
Ni (Nickel)
3
% (maximum)
P (Phosphorus)
0.02
% (maximum)
S (Sulfur)
0.02
% (maximum)
Si (Silicon)
1
% (maximum)
Composition Note
Class II
Mechanical Properties
Yield Strength
350
MPa
Ultimate Tensile Strength
540
MPa
Elongation
3
% strain
Brinell Hardness
200
(maximum)
Other Information
Material Class
Ferrous Alloy
Alloy Family
High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels)
Alloy Group
Miscellaneous or unclassified
Alloy Sub-Group
Miscellaneous high-alloy steel
Country
France
Standards Body
AFNOR (France)
Description
28 mm
Designation
KC30Fe20M
Specification Type
Standard
Specification
AFNOR NF A32-057
Specification Year
1981
Specification Status
Active
Specification Status Notes
withdrawn
Source
Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006
Available forms
Wrought
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Links
Organizations
Association Francaise de Normalisation (AFNOR) (French Association for Standardization)
No warranty is given for the accuracy of these data
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