SAE AMS4120 Aluminum | McMaster-Carr

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1C202

EAR99

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43 Products

About Aluminum

Compare over 20 aluminum alloys to find the right material for you—all with material certificates for traceability.

High-Strength 2024 Aluminum Rods and Discs

Yield Strength: 45,000 psi
Hardness: Brinell 120 (Medium)
Temper:
3/16" to 3/8" dia.: T4
All other sizes: T351
Fabrication: Cold Drawn
Specifications Met: ASTM B211, SAE AMS-QQ-A-225/6, SAE AMS4120

While 2024 aluminum was initially designed for structural components in aircraft, it's now widely used when a high strength-to-weight ratio is needed, such as for gears, shafts, and fasteners. It offers similar performance to 7075 aluminum, but it’s not as strong.

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Rods

Dia.	Dia. Tolerance	Heat Treatment	Temperature Range, °F		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
5/16"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	0000	00000	00000
3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
5/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	0000	00000	00000	00000
7/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	0000	00000	00000	00000	00000
1"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	00000
1 1/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	00000
1 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
1 3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
1 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	000000	000000
1 5/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	00000	000000	000000
1 3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
1 7/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 1/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2 3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
2 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
2 5/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
2 3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3 1/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
3 3/8"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
3 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
3 3/4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
4"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00000000
4 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00000000
5"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00
5 1/2"	-0.020" to 0.020"	Hardened	-320° to 300°	00000000	000000	000000	000000	00000000	00
6"	-0.020" to 0.020"	Hardened	-320° to 300°	00000000	000000	000000	000000	00000000	00

Discs

Dia.	Dia. Tolerance	Heat Treatment	Temperature Range, °F		1/2" Lg.	3/4" Lg.	1" Lg.	3" Lg.
2"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	000000
2 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	00000
3"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	00000
3 1/4"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	00000
3 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	00000
4"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	00000
4 1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	00000
5"	-0.012" to 0.012"	Hardened	-320° to 300°	0000000	00000	00000	00000	000000
5 1/2"	-0.020" to 0.020"	Hardened	-320° to 300°	0000000	00000	00000	00000	000000
6"	-0.020" to 0.020"	Hardened	-320° to 300°	0000000	00000	00000	00000	000000