0.003" Wire | McMaster-Carr

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9 Products

About Copper, Brass, and Bronze

About Stainless Steel

View a wire gauge conversion chart.

Bend-and-Stay Multipurpose 304 Stainless Steel Wire

Bend this wire and it will stay put. Frequently used as tying wire and locking wire, 304 stainless steel is a good all-around choice for a wide range of applications.

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.

Round Wire—Spools, Cans, and Coils

Spool with Round Wire

Heat Treatment: Annealed (Softened)
Heat Treatable: No
Tensile Strength: 75,000 psi
Specifications Met: ASTM A580

					Container
Dia.	Dia. Tolerance	Lg., ft.	Fabrication	Max. Temperature, °F	Net Weight, lbs.	Type		Each
Matte
0.003"	-0.0005" to 0.0005"	2,575	Cold Drawn	550°	1/16	Spool	0000000	0000000

Super-Elastic Nitinol Wire

Temper: Spring (Hardened)
Tensile Strength: 181,000 psi

Commonly used for eyeglass frames and antennas, this wire bounces back to its original shape after bending, stretching, and twisting. Nitinol is a nickel-titanium alloy.

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

Coils

Coil

					30 ft. Lg.		100 ft. Lg.
Dia.	Dia. Tolerance	Container Type	Finish	Specifications Met		Each		Each
0.003"	-0.0004" to 0.0004"	Coil	Black Oxide	__	000000	00	0000000	0000000
0.003"	-0.0001" to 0.0001"	Coil	Black Oxide	ASTM F2063	0000000	000000	000000	00

Shape-Memory Nitinol Wire

Temper Rating: Softened
Tensile Strength: 157,500 psi
Specifications Met: ASTM F2063

Bend this wire and it will hold its shape until you heat it. It is commonly used in automotive switches and latches. Nitinol is a nickel-titanium alloy.

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

Coils

Coil

Dia.	Dia. Tolerance	Lg., ft.	Finish	Max. Temperature, °F		Each
0.003"	-0.0001" to 0.0001"	30	Black Oxide	250°	00000000	000000

2 ft. Lengths

Dia.	Dia. Tolerance	Lg., ft.	Finish	Max. Temperature, °F	Pkg. Qty.		Pkg.
0.003"	-0.0001" to 0.0001"	2	Black Oxide	250°	5	00000000	00000

Easy-to-Form Nickel Chromium Alloy

Spool

Temper Rating: Softened
Tensile Strength: 100,000 psi
Specifications Met: ASTM B267, ASTM B344

Bend this wire and it will stay in place. This nickel-chromium, often called Chromel C, provides effortless formability. Use it for heating elements, resistance windings, and hot-wire cutters.

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.

1/8 lb. Spool
Dia.	Dia. Tolerance	Fabrication	Max. Temperature, °F	Electrical Resistivity	Lg., ft.		Each
Mirror-Like
0.003"	-0.00015" to 0.00015"	Cold Worked	1800°	70.239 ohms/ft	4,630	0000000	000000
1/4 lb. Spool
Mirror-Like
0.003"	-0.00015" to 0.00015"	Cold Worked	1800°	70.239 ohms/ft	9,265	0000000	000000
1 lb. Spool
Mirror-Like
0.003"	-0.00015" to 0.00015"	Cold Worked	1800°	70.239 ohms/ft	37,060	0000000	000000

Mirror-Like Multipurpose 110 Copper Wire

Temper Rating: Softened (Annealed)
Heat Treatable: No
Tensile Strength: 29,000 psi
Specifications Met: ASTM B3

This wire is polished to a mirror-like finish. Offering high electrical conductivity and formability, 110 copper is 99.9% pure. Also known as ETP copper, it's often used as grounding wire. It has a soft temper and will stay in place when bent.

			1/4 lbs. Spool
Dia.	Dia. Tolerance	Mechanical Finish	Lg., ft.		Each
0.003"	-0.0001" to 0.0001"	Polished	6,000	0000000	000000