McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Thickness Thickness

	Width Width

	Diameter Diameter

	Length Length

	Material Material

	Shape Shape


Sheet and Bar	Rod and Disc

Ingot	Round Tube

90° Angle	Ball

Hex Bar	Hex Tube

Rectangular Tube	U Channel

Wire

	Wire Gauge Wire Gauge

36
32
30
29
28
26
24
23
22
20
18
16
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
4/0
250 MCM
350 MCM
500 MCM

	Number of Wires Number of Wires

1
2
3
4
5
6
7
8

9
10
12
15
16
18
22
24

25
33
34
36
41
42
50
61

	Outer Insulation Color Outer Insulation Color

	Black
	White
	Gray
	Red
	Green
	Blue
	Yellow
	Brown
	Orange
	Green/Yellow
	Purple
	Clear
	Blue/White
	Pink
	Red/White
	Beige

	Temper Rating Temper Rating

	OD OD

	Wire Type Wire Type

	Stranded
	Solid

	Tolerance Rating Tolerance Rating

Standard

Oversized

Tight

	Temper Temper

	Fabrication Fabrication

	Appearance Appearance

Plain

Brushed

Mirror-Like

	Yield Strength Yield Strength

40,000 psi or greater

Not Rated

	Shielding Shielding

	Unshielded
	Shielded
	Double Shielded

	Heat Treatable Heat Treatable

Yes

	Melting Point Temperature Melting Point Temperature

	Modulus of Elasticity Modulus of Elasticity

	Elongation Elongation

4,698 Products

Copper, Brass, and Bronze

Copper

Copper alloys have a minimum of 99.3% copper content. They are excellent conductors of heat and electricity and are commonly used for bus bars and wire connectors in electrical applications.

Brass

Brass alloys consist primarily of copper, but they can contain as much as 40% zinc, which increases their machinability. They are often used for nuts, rivets, hinges, and locks.

Bronze

While consisting mostly of copper, bronze alloys contain small amounts of tin, iron, and sometimes zinc for increased wear resistance. Bronze is widely used for bearings, gears, valves, and pump parts.