C17510 Copper-Nickel-Beryllium Alloy Wire (CuNi2Be)

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As a low beryllium alloy, C17510 resides at the lower strength end of the beryllium copper strength spectrum but in comparison has a substantial increase in electrical conductivity. The alloy processes and heat treats like all beryllium coppers and can also be provided in a (HM) “Mill Hardened” temper.

Mechanical Properties

Round Wire

TEMPER NAME  TEMPER CODE  TENSILE STRENGTH (ksi) MILL LIMITS 
MIN MAX
Annealed TB00 35 240 .0010 - .1285 inch
Hard TD04 65 450
AT TF00 100 690
HT TH04 110 760

Square Wire

TEMPER NAME  TEMPER CODE  TENSILE STRENGTH (ksi) MILL LIMITS 
MIN MAX
Annealed TB00 35 240 .0100 - .0808 inch
Hard TD04 65 450
AT TF00 100 690
HT TH04 110 760

Rolled Flat

TEMPER NAME TEMPER CODE TENSILE STRENGTH (ksi) MILL LIMITS 
MIN MAX
Annealed TB00 35 55

Thickness: 
.0100 - .0500 inch

Width:
.0150 - .2500 inch    

1/4 Hard TD02 60 75
Hard TD04 70 85
AT TF00 100 130
1/2 AT TH02 110 140
HT TH04 110 140
1/2 HM TM02 95 120
HM TM04 110 135

Physical Properties

Melting Point (Liquidis) 1955°F
Melting Point (Solidus) 1885°F
Minimum Solutionizing Temperature 1550°F
Density 0.317 lbs/cu in
Electrical Resistivity (Annealed) 22.8 ?(cir mil/ft) @ 68°F
Electrical Conductivity (Rolled or Drawn) 48% IACS @ 68°F
Electrical Conductivity (Age Hardedned) 45% IACS @ 68°F
Thermal Conductivity (Solutionized-Aged) 120 Btu ft/sq ft hr °F @ 68°F
Coefficient of Thermal Expansion 0.0000098°F (68-572°F)
Modulus of Elasticity (Tension) 19200 ksi
Modulus of Rigidity 7500 ksi