Oxygen-Free Copper Squares

Filter by

Thickness

Width

Length

Shape

Temper Designation

Temper Rating

Specifications Met

Appearance

Certificate Type

Material Certificate with Traceable Lot Number

Hardness

Hardness Rating

Thermal Conductivity @ Temperature

226 BTU/(hr⋅ft⋅°F) @ 68° F

System of Measurement

Inch

Yield Strength

10,000 psi to 19,999 psi

20,000 psi to 99,999 psi

REACH

RoHS

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

Tolerance Rating

Standard

Melting Point Temperature

1,981° F

Fabrication

Cold Worked

Surface Resistivity

1× 10^9 cir. mil·ohm/ft

Modulus of Elasticity

Density

Heat Treatable

160 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	000000	00
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	000000	00
1/8"	-0.007" to 0.007"	ASTM F68	0000000	000000	000000	00

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

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