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Nickel-base alloy, TW69, ISO 2604-5
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Chemical Composition
Base Element
Fe (Iron)
Al (Aluminum)
0.15 to 0.6
%
C (Carbon)
0.1
% (maximum)
Cr (Chromium)
19 to 23
%
Fe (Iron)
37.1 to 50.7
%
(estimate)
Mn (Manganese)
1.5
% (maximum)
Ni (Nickel)
30 to 36
%
P (Phosphorus)
0.045
% (maximum)
S (Sulfur)
0.03
% (maximum)
Si (Silicon)
1
% (maximum)
Ti (Titanium)
0.15 to 0.6
%
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
235
MPa
Ultimate Tensile Strength
480 to 680
MPa
Elongation
25
% strain
Other Information
Material Class
Ferrous Alloy
Alloy Family
High-Alloy Steel (Corrosion and Heat Resistant, Stainless, and Nickel Steels)
Alloy Group
Nickel steel and nickel low-alloy steel
Alloy Sub-Group
Nickel-base alloy
Country
International
Standards Body
ISO (International)
Description
Long. welded tube
Designation
TW69
Specification Type
Standard
Specification
ISO 2604-5
Specification Year
1978
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withdrawn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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Organizations
International Organization for Standardization (ISO)
No warranty is given for the accuracy of these data
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