C519 Phosphor Bronze 6% Alloy Wire (CuSn6)

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A phosphor bronze, alloy C519 has 6% nominal tin producing higher mechanical strengths with a slight decrease in electrical conductivity when compared to C510 phosphor bronze. Often functionally interchangeable with C510 which predominates in North America, alloy C519 is generally used in Europe.

Mechanical Properties

Round Wire

TEMPER NAME  TEMPER CODE  TENSILE STRENGTH (N/mm²) MILL LIMITS 
MIN MAX
Soft R370 370 470 .0254 - 3.264 mm
1/4 Hard R460 460 560
1/2 Hard R560 560 670
3/4 Hard R670 670 790
Hard R790 790 950
Spring R950 950 ---

Square Wire

TEMPER NAME  TEMPER CODE  TENSILE STRENGTH (N/mm²) MILL LIMITS 
MIN MAX
Soft R370 370 470 .2540 - 1.905 mm
1/4 Hard R460 460 560
1/2 Hard R560 560 670
3/4 Hard R670 670 790
Hard R790 790 950
Spring R950 950 ---

Rolled Flat

TEMPER NAME TEMPER CODE TENSILE STRENGTH (N/mm²) MILL LIMITS 
MIN MAX
Soft O60 330 435

Thickness: 
.2540 - 1.905 mm

Width: 
.3810 - 6.350 mm 

1/2 Hard H02 440 545
Hard H04 550 680

Physical Properties

Melting Point (Liquidis) 1038°C
Melting Point (Solidus) 927°C
Density 8.8299 gm/cu cm
Electrical Resistivity (Annealed) 12.3019 ?? -cm @ 20°C
Electrical Conductivity (Annealed) 0.082 /cm @ 20°C
Thermal Conductivity (Solutionized-Aged) 65.8 W/m · °K @ 20°C
Coefficient of Thermal Expansion 0.00001818°C (20-300°C)
Modulus of Elasticity (Tension) 110300 MPa
Modulus of Rigidity 41400 MPa

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