Tungsten Copper Bars | McMaster-Carr

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	Material Material	Show

Copper

10W3 Tungsten Copper

	Material Material	Hide

	System of Measurement System of Measurement

Inch

	Thickness Thickness

1/4"

1/2"

3/4"

	Width Width

1/2"

3/4"

1 1/2"

	Length Length

1ft.

	Diameter Diameter

	Shape Shape

	Rod and Disc
	Sheet and Bar

	Hardness Rating Hardness Rating

Hard

	Hardness Hardness

Rockwell C20

	Density Density

0.531 lbs./cu. in.

	Tolerance Rating Tolerance Rating

Oversized

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Appearance Appearance

	Plain

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Performance Properties Performance Properties

Wear Resistant

	Conductivity Conductivity

46% IACS

	Minimum Temperature Minimum Temperature

Not Rated

	Maximum Temperature Maximum Temperature

Not Rated

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Yield Strength Yield Strength

Not Rated

	Specifications Met Specifications Met

RWMA Class 11

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32 Products

Electrically Conductive Tungsten Copper Bars

Yield Strength: Not Rated
Hardness: Rockwell C20 (Hard)

Made of 75% tungsten for wear and arc-erosion resistance and 25% copper for electrical and thermal conductivity, these bars work well for electrodes in the electrical-discharge machining of tungsten carbide and other dense material. They’re RWMA Class 11, so use them for facings and insets for flash and butt welding dies, projection welding electrodes, and seam welding. Compared to RWMA Class 10, they’re more wear resistant because they contain more tungsten. They’re commonly known as Elkonite bars.

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.

		8" Length		12" Length
Width	Conductivity		Each		Each
1/4" Thick. (-0" to 0.015" Tolerance)
1/2"	46% IACS	00000000	0000000	00000000	0000000
1"	46% IACS	00000000	000000	00000000	000000
1 1/2"	46% IACS	00000000	000000	000000	00
1/2" Thick. (-0" to 0.015" Tolerance)
1/2"	46% IACS	00000000	000000	00000000	000000
1"	46% IACS	00000000	000000	00000000	000000
1 1/2"	46% IACS	00000000	000000	00000000	000000
3/4" Thick. (-0" to 0.015" Tolerance)
3/4"	46% IACS	00000000	000000	00000000	000000
1"	46% IACS	00000000	000000	000000	00
1" Thick. (-0" to 0.015" Tolerance)
1"	46% IACS	00000000	000000	000000	00
1 1/2"	46% IACS	00000000	000000	000000	00

Electrically Conductive Tungsten Copper Rods

Yield Strength: Not Rated
Hardness: Rockwell C20 (Hard)

Use these rods for electrodes in the electrical-discharge machining of dense material, such as tungsten carbide—they’re 75% tungsten for wear and arc-erosion resistance and 25% copper for electrical and thermal conductivity. Meeting RWMA Class 11, they’re suitable for facings and insets for flash and butt welding dies, projection welding electrodes, and seam welding. Compared to RWMA Class 10, they’re more wear resistant because they contain more tungsten. They’re also known as Elkonite rods.

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.

			8" Length		12" Length
Diameter	Diameter Tolerance	Conductivity		Each		Each
1/8"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000
1/4"	-0" to 0.015"	46% IACS	00000000	00000	00000000	00000
3/8"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000
1/2"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000
5/8"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000
3/4"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000
1"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000
1 1/2"	-0" to 0.015"	46% IACS	00000000	000000	00000000	000000