Oxygen-Free Copper | McMaster-Carr

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Material

Thickness

Shape

Width

Length

Diameter

Temper Rating

Temper Designation

Specifications Met

Hardness Rating

Certificate Type

Material Certificate with Traceable Lot Number

Appearance

Thermal Conductivity @ Temperature

226 BTU/(hr⋅ft⋅°F) @ 68° F

System of Measurement

Hardness

Melting Point Temperature

1,981° F

Tolerance Rating

Standard

Yield Strength

10,000 psi to 19,999 psi

30,000 psi to 99,999 psi

REACH

RoHS

Export Control Classification Number (ECCN)

EAR99

Fabrication

Cold Worked

DFARS Specialty Metals

Density

245 Products

About Copper, Brass & Bronze

Compare over 30 copper, brass, and bronze alloys to find the right material for you—all with material certificates for traceability.

Super-Conductive 101 Copper Sheets and Bars

With 99.99% copper content, 101 copper has higher purity than 110 copper, resulting in superior electrical conductivity. It's commonly called OFE and OFHC copper. Use it in electrical applications, such as for coaxial cables and terminal lugs.

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

Softened (Annealed) Temper Sheets

Yield Strength: 10,000 psi
Hardness: Rockwell F65 (Soft)
Temper Rating: Softened (Annealed)
Heat Treatable: No
Specifications Met: See Table

			12" × 12"		12" × 36"
Thick.	Thick. Tolerance Range	Specifications Met		Each		Each
0.02"	-0.007" to 0.007"	ASTM B170	0000000	000000	0000000	0000000
0.032"	-0.007" to 0.007"	ASTM F68	0000000	00000	0000000	000000
0.04"	-0.007" to 0.007"	ASTM B170	0000000	00000	0000000	000000
0.05"	-0.007" to 0.007"	ASTM B170	0000000	00000	000000	00
0.062"	-0.007" to 0.007"	ASTM F68	0000000	00000	0000000	000000
1/8"	-0.007" to 0.007"	ASTM F68	0000000	000000	0000000	000000

1/8 to 1/4 Hard Temper Sheets

Yield Strength: 34,000 psi
Hardness: Rockwell F60 (Soft)
Temper: H00 (1/8 Hard) to H01 (1/4 Hard)
Heat Treatable: No
Specifications Met: ASTM B152, ASTM F68

2" × 24"
Thick.	Thick. Tolerance Range		Each
0.025"	-0.003" to 0.003"	000000000	000000
0.032"	-0.003" to 0.003"	000000000	00000
0.04"	-0.004" to 0.004"	000000000	00000
0.05"	-0.004" to 0.004"	000000000	00000
0.063"	-0.005" to 0.005"	000000000	00000
0.08"	-0.006" to 0.006"	000000000	00000
0.093"	-0.006" to 0.006"	000000000	00000
1/8"	-0.006" to 0.006"	000000000	00000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	000000000	000000
3/8"	-0.012" to 0.012"	000000000	000000
1/2"	-0.015" to 0.015"	000000000	000000
4" × 24"
0.025"	-0.003" to 0.003"	000000000	00000
0.032"	-0.003" to 0.003"	000000000	00000
0.04"	-0.004" to 0.004"	000000000	00000
0.05"	-0.004" to 0.004"	000000000	00000
0.063"	-0.005" to 0.005"	000000000	00000
0.08"	-0.006" to 0.006"	000000000	00000
0.093"	-0.006" to 0.006"	000000000	000000
1/8"	-0.006" to 0.006"	000000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	000000000	000000
3/8"	-0.012" to 0.012"	000000000	000000
1/2"	-0.015" to 0.015"	000000000	000000
6" × 6"
0.025"	-0.003" to 0.003"	000000000	00000
0.032"	-0.003" to 0.003"	00000000	00000
0.04"	-0.004" to 0.004"	000000000	00000
0.05"	-0.004" to 0.004"	000000000	00000
0.063"	-0.005" to 0.005"	00000000	00000
0.08"	-0.006" to 0.006"	000000000	00000
0.093"	-0.006" to 0.006"	00000000	00000
1/8"	-0.006" to 0.006"	00000000	00000
3/16"	-0.007" to 0.007"	000000000	00000
1/4"	-0.009" to 0.009"	00000000	000000
3/8"	-0.012" to 0.012"	00000000	000000
1/2"	-0.015" to 0.015"	00000000	000000
6" × 12"
0.025"	-0.003" to 0.003"	000000000	00000
0.032"	-0.003" to 0.003"	000000000	00000
0.04"	-0.004" to 0.004"	000000000	00000
0.05"	-0.004" to 0.004"	000000000	00000
0.063"	-0.005" to 0.005"	000000000	00000
0.08"	-0.006" to 0.006"	000000000	00000
0.093"	-0.006" to 0.006"	000000000	00000
1/8"	-0.006" to 0.006"	000000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	000000000	000000
3/8"	-0.012" to 0.012"	000000000	000000
1/2"	-0.015" to 0.015"	000000000	000000
6" × 24"
0.025"	-0.003" to 0.003"	000000000	00000
0.032"	-0.003" to 0.003"	000000000	00000
0.04"	-0.004" to 0.004"	000000000	00000
0.05"	-0.004" to 0.004"	000000000	00000
0.063"	-0.005" to 0.005"	000000000	00000
0.08"	-0.006" to 0.006"	000000000	000000
0.093"	-0.006" to 0.006"	000000000	000000
1/8"	-0.006" to 0.006"	000000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	000000000	000000
3/8"	-0.012" to 0.012"	000000000	000000
1/2"	-0.015" to 0.015"	000000000	000000

12" × 12"
Thick.	Thick. Tolerance Range		Each
0.025"	-0.003" to 0.003"	000000000	000000
0.032"	-0.003" to 0.003"	00000000	00000
0.04"	-0.004" to 0.004"	000000000	00000
0.05"	-0.004" to 0.004"	000000000	00000
0.063"	-0.005" to 0.005"	00000000	00000
0.08"	-0.006" to 0.006"	000000000	000000
0.093"	-0.006" to 0.006"	00000000	000000
1/8"	-0.006" to 0.006"	00000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	00000000	000000
3/8"	-0.012" to 0.012"	00000000	000000
1/2"	-0.015" to 0.015"	00000000	000000
12" × 24"
0.025"	-0.003" to 0.003"	000000000	00000
0.032"	-0.003" to 0.003"	00000000	00000
0.04"	-0.004" to 0.004"	000000000	000000
0.05"	-0.004" to 0.004"	000000000	000000
0.063"	-0.005" to 0.005"	00000000	000000
0.08"	-0.006" to 0.006"	000000000	000000
0.093"	-0.006" to 0.006"	00000000	000000
1/8"	-0.006" to 0.006"	00000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	00000000	000000
3/8"	-0.012" to 0.012"	00000000	000000
1/2"	-0.015" to 0.015"	00000000	000000
12" × 48"
0.025"	-0.003" to 0.003"	000000000	000000
0.032"	-0.003" to 0.003"	00000000	000000
0.04"	-0.004" to 0.004"	000000000	000000
0.05"	-0.004" to 0.004"	000000000	000000
0.063"	-0.005" to 0.005"	00000000	000000
0.08"	-0.006" to 0.006"	000000000	000000
0.093"	-0.006" to 0.006"	00000000	000000
1/8"	-0.006" to 0.006"	00000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	00000000	000000
3/8"	-0.012" to 0.012"	00000000	00000000
1/2"	-0.015" to 0.015"	00000000	00000000
24" × 24"
0.025"	-0.003" to 0.003"	000000000	000000
0.032"	-0.003" to 0.003"	000000000	000000
0.04"	-0.004" to 0.004"	000000000	000000
0.05"	-0.004" to 0.004"	000000000	000000
0.063"	-0.005" to 0.005"	000000000	000000
0.08"	-0.006" to 0.006"	000000000	000000
0.093"	-0.006" to 0.006"	000000000	000000
1/8"	-0.006" to 0.006"	000000000	000000
3/16"	-0.007" to 0.007"	000000000	000000
1/4"	-0.009" to 0.009"	000000000	000000
3/8"	-0.012" to 0.012"	000000000	00000000
1/2"	-0.015" to 0.015"	000000000	00000000
24" × 48"
0.025"	-0.003" to 0.003"	000000000	000000
0.032"	-0.003" to 0.003"	00000000	000000
0.04"	-0.004" to 0.004"	000000000	000000
0.05"	-0.004" to 0.004"	000000000	000000
0.063"	-0.005" to 0.005"	00000000	000000
0.08"	-0.006" to 0.006"	000000000	000000
0.093"	-0.006" to 0.006"	00000000	000000
1/8"	-0.006" to 0.006"	00000000	00000000
3/16"	-0.007" to 0.007"	000000000	00000000
1/4"	-0.009" to 0.009"	00000000	00000000
3/8"	-0.012" to 0.012"	00000000	00000000
1/2"	-0.015" to 0.015"	00000000	00000000

1/2 Hard Temper Sheets

Yield Strength: Not Rated
Hardness: Rockwell F75 (Soft)
Temper: H02 (1/2 Hard)
Heat Treatable: No
Specifications Met: ASTM F68

		4" × 4"		6" × 6"		9" × 9"		12" × 12"
Thick.	Thick. Tolerance Range		Each		Each		Each		Each
1/4"	-0.012" to 0.012"	00000000	000000	00000000	000000	00000000	0000000	00000000	0000000
3/8"	-0.015" to 0.015"	00000000	00000	00000000	000000	00000000	000000	00000000	000000
1/2"	-0.015" to 0.015"	00000000	00000	00000000	000000	00000000	000000	00000000	000000
5/8"	-0.019" to 0.019"	00000000	000000	0000000	000000	0000000	000000	00000000	000000
3/4"	-0.019" to 0.019"	00000000	000000	0000000	000000	0000000	000000	00000000	000000
7/8"	-0.024" to 0.024"	00000000	000000	0000000	000000	0000000	000000	00000000	000000
1"	-0.024" to 0.024"	000000	000000	0000000	000000	0000000	000000	00000000	000000

1/2 Hard Temper Bars

Yield Strength: Not Rated
Hardness: Rockwell F75 (Soft)
Temper: H02 (1/2 Hard)
Heat Treatable: No
Specifications Met: See table

1/16" Thick. (-0.006" to 0.006" Tolerance)
Wd.	Specifications Met	Straightness Tolerance		1 ft. Lg.	2 ft. Lg.	4 ft. Lg.
1"	ASTM B152	3/4" per 5 ft.	00000000	000000	000000	000000
2"	ASTM B152	3/4" per 5 ft.	00000000	00000	00000	00000
4"	ASTM B152	3/4" per 5 ft.	00000000	00000	00000	000000
6"	ASTM B152	3/4" per 5 ft.	00000000	00000	000000	000000
1/8" Thick. (-0.004" to 0.004" Tolerance)
1"	ASTM B152	3/4" per 5 ft.	00000000	00000	00000	00000
2"	ASTM B187	3/4" per 5 ft.	00000000	00000	00000	000000
4"	ASTM B187	3/4" per 5 ft.	00000000	00000	000000	000000
6"	ASTM B152	3/4" per 5 ft.	00000000	00000	000000	000000
1/4" Thick. (-0.005" to 0.005" Tolerance)
1/4"	ASTM B187	3/4" per 5 ft.	00000000	00000	00000	00000
1/2"	ASTM B187	3/4" per 5 ft.	00000000	00000	00000	00000
1"	ASTM B187	3/4" per 5 ft.	00000000	00000	00000	000000
2"	ASTM B187	3/4" per 5 ft.	00000000	00000	000000	000000
4"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
6"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
3/8" Thick. (-0.005" to 0.005" Tolerance)
3/8"	ASTM B187	3/4" per 5 ft.	00000000	00000	00000	000000
1"	ASTM B187	3/4" per 5 ft.	00000000	00000	000000	000000
2"	ASTM B187	3/4" per 5 ft.	00000000	00000	000000	000000
4"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
1/2" Thick. (-0.005" to 0.005" Tolerance)
1/2"	ASTM B187	3/4" per 5 ft.	00000000	00000	000000	000000
1"	ASTM B187	3/4" per 5 ft.	00000000	00000	000000	000000
2"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
4"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
3/4" Thick. (-0.007" to 0.007" Tolerance)
3/4"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
1"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
2"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
4"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	00000000
1" Thick. (-0.008" to 0.008" Tolerance)
1"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
2"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	000000
4"	ASTM B187	3/4" per 5 ft.	00000000	000000	000000	00000000

Super-Conductive 101 Copper Rods and Discs

Yield Strength: Not Rated
Hardness: See table
Temper:
6" dia. rods and discs: Not Rated
All other sizes: H04 (Full Hard)
Heat Treatable: No
Specifications Met: See table

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

Dia.	Dia. Tolerance Range	Hardness	Specifications Met	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/8"	-0.002" to 0.002"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	000000	000000
5/32"	-0.003" to 0.003"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	0000	0000	00000	00000	00000
3/16"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	0000	0000	00000	00000	00000
1/4"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	0000	00000	00000	00000	00000
5/16"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	00000	00000
3/8"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	00000	00000
7/16"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	00000	000000
1/2"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	00000	000000
9/16"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	000000	000000
5/8"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	00000	000000	000000
11/16"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	000000	000000	000000
3/4"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	000000	000000	000000
7/8"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	000000	000000	000000
1"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	00000	000000	000000	000000
1 1/8"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	000000	000000	000000	000000	000000
1 1/4"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00000	000000	000000	000000	000000
1 1/2"	-0.004" to 0.004"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	000000	000000	000000	000000	000000
2"	-0.005" to 0.005"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00	000000	000000	000000	00000000
2 1/2"	-0.006" to 0.006"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	000000	000000	000000	00000000	00000000
3"	-0.008" to 0.008"	Rockwell F65 (Soft)	ASTM B187	1/2" per 6 ft.	0000000	00	000000	00000000	00000000	00000000

Dia.	Dia. Tolerance Range	Hardness	Specifications Met		1" Lg.	2" Lg.	3" Lg.	4" Lg.	5" Lg.	6" Lg.
2"	-0.008" to 0.008"	Rockwell F75 (Soft)	ASTM B187, ASTM F68	0000000	000000	000000	0000000	0000000	0000000	0000000
3"	-0.008" to 0.008"	Rockwell F75 (Soft)	ASTM B187, ASTM F68	0000000	00000	000000	000000	000000	000000	000000
4"	-0.008" to 0.008"	Rockwell F75 (Soft)	ASTM B187, ASTM F68	0000000	000000	000000	000000	000000	000000	000000
5"	-0.01" to 0.01"	Rockwell F75 (Soft)	ASTM B187, ASTM F68	0000000	000000	000000	000000	000000	000000	000000
6"	-0.063" to 0.063"	Not Rated	ASTM B187, ASTM F68	0000000	000000	000000	000000	000000	000000	000000

Titanium-Clad Super-Conductive 101 Copper Rods

Yield Strength: Not Rated
Hardness: Not Rated
Temper Rating: Not Rated
Heat Treatable: No

A thin layer of titanium is bonded to these copper rods for long life and dimensional stability in corrosive environments. With greater than 99.9% copper content, 101 copper has higher purity than 110 copper, resulting in superior electrical conductivity. It's commonly called OFHC copper. Use these rods in electrical applications.

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

Dia.	Dia. Tolerance	Finish Thick.		3 ft. Lg.	6 ft. Lg.
1/4"	-0.005" to 0.005"	0.02" to 0.04"	000000	000000	0000000
3/8"	-0.01" to 0.01"	0.02" to 0.04"	000000	000000	000000
1/2"	-0.01" to 0.01"	0.02" to 0.04"	000000	000000	000000
5/8"	-0.01" to 0.01"	0.02" to 0.04"	000000	000000	000000
3/4"	-0.01" to 0.01"	0.02" to 0.04"	000000	000000	000000
1"	-0.02" to 0.02"	0.02" to 0.04"	000000	000000	000000

Super-Conductive 101 Copper Tubes

Yield Strength: 30,000 psi
Hardness: Rockwell F90 (Soft)
Temper: H80 (Full Hard)
Heat Treatable: No
Specifications Met: ASTM B75, ASTM F68

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

0.032" Wall Thick. (-0.006" to 0.006" Tolerance)
OD	OD Tolerance Range	ID	Straightness Tolerance		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/8"	-0.003" to 0.003"	0.061"	Not Rated	0000000	00000	00000	000000
3/16"	-0.003" to 0.003"	0.124"	Not Rated	0000000	0000	00000	00000
3/8"	-0.003" to 0.003"	0.311"	0.5"	0000000	00000	00000	00000
1/2"	-0.003" to 0.003"	0.436"	0.5"	0000000	00000	00000	00000
3/4"	-0.003" to 0.003"	0.686"	0.5"	0000000	00000	00000	00000
0.035" Wall Thick. (-0.006" to 0.006" Tolerance)
1/4"	-0.003" to 0.003"	0.18"	0.5"	0000000	00000	00000	00000
0.065" Wall Thick. (-0.006" to 0.006" Tolerance)
3/8"	-0.003" to 0.003"	0.245"	0.5"	0000000	00000	00000	00000
1/2"	-0.003" to 0.003"	0.37"	0.5"	0000000	00000	00000	000000
3/4"	-0.003" to 0.003"	0.62"	0.5"	0000000	00000	000000	000000
1/8" Wall Thick. (-0.006" to 0.006" Tolerance)
1"	-0.003" to 0.003"	3/4"	0.5"	0000000	00000	000000	000000

High-Temperature Nickel-Clad Copper

Spool

Temper Rating: Softened (Annealed)
Tensile Strength: 80,000 psi
Specifications Met: ASTM B355

This copper wire is clad in nickel to provide excellent corrosion resistance at temperatures up to 1200° F while maintaining high electrical conductivity. It has a soft temper and will stay in place when bent.

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

				1/4 lb. Spool			1 lb. Spool
Dia.	Dia. Tolerance	Mechanical Finish	Finish Thick.	Lg., ft.		Each	Lg., ft.		Each
Mirror-Like
0.02"	-0.0003" to 0.0003"	Polished	0.00145"	250	00000000	000000	1,000	00000000	0000000
0.025"	-0.0003" to 0.0003"	Polished	0.00185"	130	00000000	00000	520	00000000	000000
0.032"	-0.0003" to 0.0003"	Polished	0.00233"	80	00000000	00000	320	00000000	000000
0.04"	-0.0003" to 0.0003"	Polished	0.00295"	50	00000000	00000	200	00000000	000000
0.051"	-0.0005" to 0.0005"	Polished	0.00375"	30	00000000	00000	120	00000000	000000
0.064"	-0.0005" to 0.0005"	Polished	0.00466"	20	00000000	00000	80	00000000	000000
0.08"	-0.0005" to 0.0005"	Polished	0.00588"	12	00000000	00000	50	00000000	000000
1/8"	-0.001" to 0.001"	Polished	0.00915"	6	00000000	00000	25	00000000	000000