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Chromium molybdenum vanadium steel, KL9, MSZ 1741 (KL9, MSZ 1741 (40.1-60 mm))
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Chemical Composition
Base Element
Fe (Iron)
Al (Aluminum)
0.02 to 0.06
%
C (Carbon)
0.1 to 0.18
%
Cr (Chromium)
0.7 to 1
%
Cu (Copper)
0.35
% (maximum)
Fe (Iron)
95.9 to 98.1
%
(estimate)
Mn (Manganese)
0.4 to 0.9
%
Mo (Molybdenum)
0.45 to 0.55
%
Nb (Niobium)
0.01 to 0.06
%
Ni (Nickel)
0.35
% (maximum)
P (Phosphorus)
0.035
% (maximum)
S (Sulfur)
0.03
% (maximum)
Si (Silicon)
0.15 to 0.4
%
Ti (Titanium)
0.02 to 0.06
%
V (Vanadium)
0.02 to 0.1
%
Zr (Zirconium)
0.015 to 0.06
%
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
270
MPa
Ultimate Tensile Strength
440 to 580
MPa
Elongation
20
% strain
Other Information
Material Class
Ferrous Alloy
Alloy Family
Alloy Steel
Alloy Group
Chromium molybdenum steel
Alloy Sub-Group
Chromium molybdenum vanadium steel
Country
Hungary
Standards Body
MSZ (Hungary)
Description
Boiler, pressure vessel; 40.1-60 mm; heat-treated
Designation
KL9
Specification Type
Standard
Specification
MSZ 1741
Specification Year
1989
Specification Status
Active
Source
Worldwide Guide to Equivalent Irons and Steels, 5th ed. ASM International 2006
Available forms
Wrought
Similar Alloys
Click here to find similar alloys
Links
Organizations
Magyar Szabvanyugyi Testulet (MSZT) (Hungarian Standards Institution)
No warranty is given for the accuracy of these data
Copyright © 2024 ASM International®
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