T351 Temper Aluminum | McMaster-Carr

Filter by

Temper Designation

Thickness

Width

Length

Shape

Material

Diameter

Specifications Met

Tolerance Rating

Certificate Type

Material Certificate with Traceable Lot Number

System of Measurement

Hardness Rating

Appearance

Yield Strength

40,000 psi or greater

Performance

Fabrication

Heat Treatment

Hardness

Export Control Classification Number (ECCN)

RoHS

REACH

Elongation

Maximum Temperature

Minimum Temperature

DFARS Specialty Metals

Heat Treatable

145 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 Sheets and Bars

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.

Cold-rolled sheets are cut from large pieces to the widths and lengths listed, so the edges may not be parallel.

Cold-drawn bars are formed by a die for close-tolerance widths, then cut to the lengths listed.

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

Sheets

Yield Strength: 41,000 psi
Hardness: Brinell 120 (Medium)
Temper:
0.020" to 0.190" thick. sheets: T3
All other sizes: T351
Fabrication: Cold Rolled
Specifications Met: ASTM B209

6" × 6"
Thick.	Thick. Tolerance	Heat Treatment	Temperature Range, °F		Each
1/4"	-0.014" to 0.014"	Hardened	-320° to 300°	00000000	000000
3/8"	-0.017" to 0.017"	Hardened	-320° to 300°	00000000	00000
1/2"	-0.023" to 0.023"	Hardened	-320° to 300°	00000000	00000
3/4"	-0.031" to 0.031"	Hardened	-320° to 300°	00000000	00000
1"	-0.047" to 0.047"	Hardened	-320° to 300°	00000000	000000
1 1/4"	-0.047" to 0.047"	Hardened	-320° to 300°	00000000	000000
1 1/2"	-0.047" to 0.047"	Hardened	-320° to 300°	00000000	000000
8" × 8"
1/4"	-0.014" to 0.014"	Hardened	-320° to 300°	0000000	00000
3/8"	-0.017" to 0.017"	Hardened	-320° to 300°	0000000	00000
1/2"	-0.023" to 0.023"	Hardened	-320° to 300°	0000000	00000
3/4"	-0.031" to 0.031"	Hardened	-320° to 300°	0000000	000000
1"	-0.047" to 0.047"	Hardened	-320° to 300°	0000000	000000
12" × 12"
1/4"	-0.014" to 0.014"	Hardened	-320° to 300°	0000000	000000
3/8"	-0.017" to 0.017"	Hardened	-320° to 300°	0000000	000000
1/2"	-0.023" to 0.023"	Hardened	-320° to 300°	0000000	000000
3/4"	-0.031" to 0.031"	Hardened	-320° to 300°	0000000	000000
1"	-0.047" to 0.047"	Hardened	-320° to 300°	0000000	000000
12" × 24"
1/4"	-0.014" to 0.014"	Hardened	-320° to 300°	00000000	000000
3/8"	-0.017" to 0.017"	Hardened	-320° to 300°	00000000	000000
1/2"	-0.023" to 0.023"	Hardened	-320° to 300°	00000000	000000
3/4"	-0.031" to 0.031"	Hardened	-320° to 300°	00000000	000000
1"	-0.047" to 0.047"	Hardened	-320° to 300°	00000000	000000
18" × 18"
1/4"	-0.014" to 0.014"	Hardened	-320° to 300°	0000000	000000
3/8"	-0.017" to 0.017"	Hardened	-320° to 300°	0000000	000000
1/2"	-0.023" to 0.023"	Hardened	-320° to 300°	0000000	000000
3/4"	-0.031" to 0.031"	Hardened	-320° to 300°	0000000	000000
1"	-0.047" to 0.047"	Hardened	-320° to 300°	0000000	000000
24" × 24"
1/4"	-0.014" to 0.014"	Hardened	-320° to 300°	0000000	000000
3/8"	-0.017" to 0.017"	Hardened	-320° to 300°	0000000	000000
1/2"	-0.023" to 0.023"	Hardened	-320° to 300°	0000000	000000
3/4"	-0.031" to 0.031"	Hardened	-320° to 300°	0000000	000000
1"	-0.047" to 0.047"	Hardened	-320° to 300°	0000000	000000

Bars

Yield Strength: 47,000 psi
Hardness: Brinell 120 (Medium)
Fabrication: Cold Drawn
Temper:
1/8" to 3/8" thick. bars: T4
All other sizes: T351
Specifications Met: ASTM B211

1/2" Thick. (-0.002" to 0.002" Tolerance)
Wd.	Heat Treatment	Temperature Range, °F		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/2"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
3/4"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	00000
1"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
1 1/4"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
1 1/2"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
1 3/4"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
2"	Hardened	-320° to 300°	000000000	00000	00000	00000	000000	000000
2 1/2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
3"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
4"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
6"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
5/8" Thick. (-0.0025" to 0.0025" Tolerance)
5/8"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	00000
3/4"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
1"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
1 1/4"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
3/4" Thick. (-0.003" to 0.003" Tolerance)
3/4"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
3/4" Thick. (-0.0025" to 0.0025" Tolerance)
1"	Hardened	-320° to 300°	000000000	00000	00000	00000	00000	000000
1 1/4"	Hardened	-320° to 300°	000000000	00000	00000	00000	000000	000000
1 1/2"	Hardened	-320° to 300°	000000000	00000	00000	00000	000000	000000
2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
2 1/2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
3"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
3 1/2"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
4"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
1" Thick. (-0.003" to 0.003" Tolerance)
1"	Hardened	-320° to 300°	00000000	00000	00000	00000	00000	000000
1" Thick. (-0.0025" to 0.0025" Tolerance)
1 1/4"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
1 1/2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
1 3/4"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
2 1/2"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
3"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
3 1/2"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
5"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
6"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
1 1/8" Thick. (-0.003" to 0.003" Tolerance)
1 1/8"	Hardened	-320° to 300°	00000000	00000	00000	00000	000000	000000
1 1/4" Thick. (-0.003" to 0.003" Tolerance)
1 1/4"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
1 1/2"	Hardened	-320° to 300°	000000000	00000	00000	000000	000000	000000
2 1/2"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
4"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
1 1/2" Thick. (-0.003" to 0.003" Tolerance)
1 1/2"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
2"	Hardened	-320° to 300°	000000000	00000	000000	000000	000000	000000
2 1/2"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
3"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
1 3/4" Thick. (-0.005" to 0.005" Tolerance)
1 3/4"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
3"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
4"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	00000000
2" Thick. (-0.005" to 0.005" Tolerance)
2"	Hardened	-320° to 300°	00000000	00000	000000	000000	000000	000000
2 1/2"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
3"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	000000
4"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	00000000
2 1/4" Thick. (-0.008" to 0.008" Tolerance)
2 1/4"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	000000
2 1/2" Thick. (-0.008" to 0.008" Tolerance)
3"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	00
6"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	00000000
3" Thick. (-0.008" to 0.008" Tolerance)
4"	Hardened	-320° to 300°	000000000	000000	000000	000000	000000	00000000
6"	Hardened	-320° to 300°	000000000	000000	000000	000000	00000000	00000000
3 1/2" Thick. (-0.01" to 0.01" Tolerance)
3 1/2"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00000000
4" Thick. (-0.01" to 0.01" Tolerance)
4"	Hardened	-320° to 300°	00000000	000000	000000	000000	000000	00000000

Tight-Tolerance High-Strength 2024 Aluminum Sheets and Bars

Yield Strength: 47,000 psi
Hardness: Brinell 120 (Medium)
Temper: T351
Fabrication: Hot Rolled
Specifications Met: ASTM B209, SAE AMS-QQ-A-250/4, SAE AMS4035

Also known as flat stock, these sheets and bars are precision ground on the top and bottom. The sides have a cut or milled edge. 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.

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

Thick.	Thick. Tolerance	Heat Treatment	Temperature Range, °F	Flatness Tolerance		2" × 12"	4" × 12"	6" × 12"	6" × 24"	8" × 8"	12” × 12”	12” × 24”	18" × 18"	24” × 24”
1/4"	-0.002" to 0.002"	Hardened	-320° to 300°	0.010"	0000000	000000	0000000	0000000	0000000	0000000	0000000	0000000	0000000	0000000
3/8"	-0.002" to 0.002"	Hardened	-320° to 300°	0.010"	0000000	000000	000000	000000	000000	000000	000000	000000	000000	000000
1/2"	-0.002" to 0.002"	Hardened	-320° to 300°	0.005"	0000000	000000	000000	000000	000000	000000	000000	000000	000000	000000
1"	-0.002" to 0.002"	Hardened	-320° to 300°	0.005"	0000000	000000	000000	000000	000000	000000	000000	000000	000000	00000000

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

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.
1/2"	-0.012" to 0.012"	Hardened	-320° to 300°	00000000	00000	00000	000000	000000	000000
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	000000
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	000000	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

High-Strength 2024 Aluminum Hex Bars

Yield Strength: 47,000 psi
Hardness: Brinell 120 (Medium)
Temper:
1/4" wd.: T4
All other sizes: T351
Fabrication: Cold Drawn
Specifications Met: ASTM B211

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

Wd.	Wd. Tolerance	Heat Treatment	Temperature Range, °F		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/2"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	000000	000000	000000
3/4"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	00000
7/8"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	000000
1"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	00000	000000
1 1/8"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
1 1/4"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
1 1/2"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000
2"	-0.005" to 0.005"	Hardened	-320° to 300°	00000000	00000	000000	000000

Aluminum Balls

Lighter in weight than steel and stronger than plastic, these aluminum balls are widely used in bearings and in valves.

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

Dia.	Dia. Tolerance	Material	Yield Strength	Temper	Hardness	Heat Treatment	Pkg. Qty.		Pkg.
7/8"	-0.001" to 0.001"	2024 Aluminum	41,000 psi	T351	Brinell 120 (Medium)	Hardened	1	0000000	000000
1"	-0.001" to 0.001"	2024 Aluminum	41,000 psi	T351	Brinell 120 (Medium)	Hardened	1	0000000	00000
2"	-0.001" to 0.001"	2024 Aluminum	41,000 psi	T351	Brinell 120 (Medium)	Hardened	1	0000000	000000