1 3/8" Aluminum Plates | McMaster-Carr

The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.

Extruded sheets and bars are formed by a die for close-tolerance widths, then cut to the lengths listed.

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 ACTIVITY after your order ships.

Bars

Yield Strength: 35,000 psi
Hardness: Brinell 95 (Soft)
Temper: See table
Fabrication: See table
Specifications Met:
-0.003" to 0.003" Thick. Tolerance: SAE AMS4150, SAE AMS-QQ-A-200, ASTM B221
All other tolerances: ASTM B221

1 3/8" Thick. (-0.014" to 0.014" Tolerance)
Wd.	Fabrication	Temper	Heat Treatment	Temperature Range, °F		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 3/8"	Extruded	T6511	Hardened	-320° to 300°	0000000	000000	000000	000000	000000	000000

Low-Carbon Steel Sheets and Bars

Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. Some of this material can be surface hardened with heat treating.

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 ACTIVITY after your order ships.

Bars

Yield Strength: 54,000 psi
Hardness: Rockwell B70 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A108

1 3/8" Thickness (-0.006" to 0" Tolerance)
Wd.		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 3/8"	00000000	000000	000000	000000	000000	0000000

Ultra-Machinable 12L14 Carbon Steel Bars

Yield Strength: 60,000 psi
Hardness: Rockwell B85 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A108

The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts.

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 ACTIVITY after your order ships.

Thick.	Thick. Tolerance	Wd.	Heat Treatment		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 3/8"	-0.003" to 0"	1 3/8"	Annealed (Softened)	0000000	000000	0000000	0000000

Multipurpose 4140 Alloy Steel Bars

Yield Strength: 60,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C60
Specifications Met: ASTM A29, ASTM A108

Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.

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 ACTIVITY after your order ships.

1 3/8" Thick. (-0.006" to 0" Tolerance)
Wd.	Heat Treatment	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 3/8"	Annealed (Softened)	3/16" per 10 ft.	0000000	000000	000000	000000	0000000	0000000

Ultra-Machinable 360 Brass Bars

Yield Strength: 15,000 psi
Hardness: Rockwell B35 (Soft)
Temper: H02 (1/2 Hard)
Heat Treatable: No
Specifications Met: ASTM B16

With the highest lead content of all the brass alloys, 360 offers the best machinability. Often called free-machining and free-cutting brass, it stands up to high-speed drilling, milling, and tapping operations with minimal wear on your tools. It’s commonly used for gears, pinions, and lock components.

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 ACTIVITY after your order ships.

1 3/8" Thick. (-0.014" to 0.014" Tolerance)
Wd.		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1 3/4"	00000000	000000	0000000	0000000	0000000	0000000

About Copper, Brass, and Bronze

About Aluminum

About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron