2024

Aluminum 2024-O/T3/T4/351/851 Product Guide

Applications | Specifications | Related Videos | Mechanical and Chemical Data | Tolerances

Overview

Copper is the main alloying ingredient in 2024 aluminum. It is very strong compared to most aluminum alloys, and has average machinability, but the copper component of this alloy makes it susceptible to corrosion. Many items in this alloy are produced with a clad surface to protect the underlying material. In addition, 2024 is not considered to be weldable.

Finally, the fatigue resistance of 2024 make it a primary choice when the application is expected to be under stress or strain for prolonged periods. It is typically used in aerospace applications, bolts, clock parts, computer parts, hydraulic valve parts, nuts, pistons, and gears. If you need durable and strong aluminum material, this is an excellent choice.

Common Trade Names

UNS A92024, Al2024-O, Alclad 2024-O, AA2024-T3, Al2024-T3, Alclad 2024-T3, UNS A82024, Alclad 2024-T4/T351, Al2024-T4, UNS A82024, Alclad 2024-T851

Other Resources

Safety Data Sheet | Weight Calculator | Mill Test Reports

Products

Applications

Aerospace
Marine fittings
Electronics
decorative hardware
Hydraulic Equipment
Cameras

Aluminum 2024 Specifications

ASTM	AMS
B209	4037
B211	4120
QQ-A-225/6
QQ-A-250/4
WW-T700/3

Related videos

	-O	-T3	-T351/T4	-T851
Physical Properties 2024
Density	0.1 lb/in3	0.1 lb/in3	0.1 lb/in3	0.1 lb/in3
Ultimate Tensile Strength	27 ksi(bare); 26 ksi(clad)	70 ksi(bare); 65 ksi (clad)	67 ksi(T351); 69 ksi(T4)	75 ksi
Yield Tensile Strength	11 ksi	50 ksi(bare); 45 ksi(clad)	47 ksi(T351); 45 ksi(T4)	66 ksi
Fatigue Strength	13 ksi	20 ksi	20 ksi	17 ksi
Shear Strength	18 ksi	41 ksi(bare); 40 ksi(clad)	41 ksi	43 ksi
Shear Modulus	4,060 ksi	4,060 ksi	4,060 ksi	3,920 ksi
Hardness Rockwell \| Brinell	N/A \| 47	B75 \| 120	B75 \| 120	B84 \| 140
Elongation at Break Percentage	20%	18%	13%(T351); 16%(T4)	4.9%
Modulus of Elasticity	10,600 ksi	10,600 ksi	10,000 ksi	10,000 ksi
Poisson's Ratio	0.33	0.33	0.33	0.33
Machinability Percentage	30%	70%	70%	70%
Melting Point	935-1,180 °F	935-1,180 °F	930-1,180 °F	930-1,180 °F
Specific Heat	2.1 x 10^-1 BTU/lb-°F	2.09 x 10^-1 BTU/lb-°F	2.1 x 10^-1 BTU/lb-°F	2.1 x 10^-1 BTU/lb-°F
Thermal Conductivity	1,340 BTU-in/hr-ft^2-°F	840 BTU-in/hr-ft^2-°F	840 BTU-in/hr-ft^2-°F	1,050 BTU-in/hr-ft^2-°F
Electrical Conductivity	30% IACS	30% IACS	30% IACS	30% IACS

Chemistry Information
Element	Percentage
Al	93.5
Cr	0.1 max
Cu	3.8 - 4.9
Mg	1.2 - 1.8
Fe	0.5 max
Mn	0.3 - 0.9
Si	0.5 max
Zn	0.25 max
Ti	0.15 max

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