C260 Cartridge Brass Alloy Wire (CuZn30)

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Alloy C260 is commonly used for electrical components, electronic parts, and mechanical fasteners. The alloy has good strength but poor stress relaxation characteristics and does not make a particularly good spring material. Although it has good conductivity, the solderability of the alloy is severely impaired by its high zinc content.

English UnitsMetric Units

Mechanical Properties

Round Wire

Temper Name Temper Code Tensile Strength (ksi) Mill Limits
Min Max
1/8 Hard H00 50 65 .0010 - .1285 inch
1/4 Hard H01 62 77
1/2 Hard H02 79 94
3/4 Hard H03 92 107
Hard H04 102 117
Extra Hard H06 115 129
Spring H08 120  

Square Wire

Temper Name Temper Code Tensile Strength (ksi) Mill Limits
Min Max
1/8 Hard H00 50 65 .0100 - .0808 inch
1/4 Hard H01 62 77
1/2 Hard H02 79 94
3/4 Hard H03 92 107
Hard H04 102 117
Extra Hard H06 115 129
Spring H08 120  

Rolled Flat

Temper Name Temper Code Tensile Strength (ksi) Mill Limits
Min Max
1/4 Hard H01 49 59

Thickness:
.0100 - .0500 inch

Width:
.0150 - .2500 inch
1/2 Hard H02 57 67
3/4 Hard H03 64 74
Hard H04 71 81
Extra Hard H06 83 92
Spring H08 91 100

Physical Properties

Melting Point (Liquidis) 1750°F
Melting Point (Solidus) 1680°F
Density 0.308 lbs/cu in
Electrical Resistivity (Annealed) 37 Ω⋅cmil/ft @ 68°F
Electrical Conductivity (Annealed) 28% IACS @ 68°F
Thermal Conductivity (Solutionized-Aged) 70 Btu ft/sq ft hr °F @ 68°F
Coefficient of Thermal Expansion 0.0000111°F (68-572°F)
Modulus of Elasticity (Tension) 16000 ksi
Modulus of Rigidity 6000 ksi

For a full size version of product specifications, including chemical composition in both US and Metric units, please download the PDF.