C197 High Performance Alloy Wire

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Alloy C197 is a high conductivity copper alloy possessing an excellent combination of strength, conductivity and softening resistance. This alloy can be substituted for medium tempers of brass and bronze when higher electrical conductivity is required or better solderability is needed. Alloy C197 is an improved version of alloy C194 and has substantially greater conductivity at the same strength levels.

English UnitsMetric Units

Mechanical Properties

Round Wire

Temper Name Temper Code Tensile Strength (ksi) Mill Limits
Min Max
Annealed   39 47 .0010 - .1285 inch
1/4 Hard H01 50 65
1/2 Hard H02 60 75
3/4 Hard H03 70 85
Hard H04 80 95
Spring H08 90  

Square Wire

Temper Name  Temper Code  Tensile Strength (ksi) Mill Limits 
Min Max
Annealed   39 47 .0100 - .0808 inch
1/4 Hard H01 50 65
1/2 Hard H02 60 75
3/4 Hard H03 70 85
Hard H04 80 95
Spring H08 90  

Rolled Flat

Temper Name  Temper Code  Tensile Strength (ksi) Mill Limits 
Min Max
Annealed   43 53

Thickness:
.0100 - .0500 inch

Width:
.0150 - .2500 inch
1/2 Hard H02 53 63
Hard H04 60 70
Spring H08 70 76

Physical Properties

Melting Point (Liquidis) 1986°F
Melting Point (Solidus) 1956°F
Density 0.319 lbs/cu in
Electrical Resistivity (Annealed) 15 Ω⋅cmil/ft @ 68°F
Electrical Conductivity (Annealed) 80
Coefficient of Thermal Expansion 0.0000097°F (68-572°F)
Modulus of Elasticity (Tension) 17200 ksi