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.

Mechanical Properties

Round Wire

Temper Name  Temper Code  Tensile Strength (N/mm²) Mill Limits 
Min Max
Annealed   270 325 .0254 - 3.264 mm
1/4 Hard H01 345 450
1/2 Hard H02 415 515
3/4 Hard H03 485 585
Hard H04 550 655
Spring H08 620 0

Square Wire

Temper Name  Temper Code  Tensile Strength (N/mm²) Mill Limits 
Min Max
Annealed   270 325 .2540 - 1.905 mm
1/4 Hard H01 345 450
1/2 Hard H02 415 515
3/4 Hard H03 485 585
Hard H04 550 655
Spring H08 620 0

Rolled Flat

Temper Name  Temper Code  Tensile Strength (N/mm²) Mill Limits 
Min Max
Annealed   295 365

Thickness:
.2540 - 1.905 mm

Width:
.3810 - 6.350 mm

1/2 Hard H02 365 435
Hard H04 415 485
Spring H08 485 525

Physical Properties

Melting Point (Liquidis) 1086°C
Melting Point (Solidus) 1069°C
Density 8.83 gm/cu cm
Electrical Resistivity (Annealed) 2.4936 ?? -cm @ 20°C
Electrical Conductivity (Annealed) 0.46833 MegaSiemens /cm @20°C
Coefficient of Thermal Expansion 0.00001746°C (20-300°C)
Modulus of Elasticity (Tension) 118600 MPa

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