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Unclassified steel, ALMAR 25 (AL Tech Specialty Steel Corp.)
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Chemical Composition
Base Element
Fe (Iron)
Al (Aluminum)
0.15 to 0.3
%
C (Carbon)
0.03
%
Fe (Iron)
71.5 to 73.5
%
(estimate)
Nb (Niobium)
0.5
% (maximum)
Ni (Nickel)
25 to 26
%
Ti (Titanium)
1.3 to 1.6
%
Zr (Zirconium)
0.02
%
Balance
Fe (Iron)
Composition Note
Fe is listed as a Balance element for this material, but its % value is not listed in the specification. The value shown is a calculated one.
Mechanical Properties
Yield Strength
3.05e7 to 3.55e7
lbf/ft^2
Ultimate Tensile Strength
3.45e7 to 3.82e7
lbf/ft^2
Elongation
3 to 5
% strain
Other Information
Material Class
Ferrous Alloy
Country
USA
Description
Heat treated: 240,000-265,000 TS; 212,000-246,000 YS; 3-5 El. For rocket motor cases, airframes, airborne equipment, large machinery parts, bolts, cryogenic equipment, high temperature equipment. Maraging steel, shock resistant.
Designation
ALMAR 25
Specification Type
Manufacturer's Specification
Specification Status
Obsolete
Source
Woldman's Engineering Alloys 9th ed. J. Frick Editor, ASM International 2000
Available forms
Wrought
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Links
Organizations
AL Tech Specialty Steel Corp.
No warranty is given for the accuracy of these data
Copyright © 2024 ASM International®
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