C19160 Leaded Nickel Copper (CuNiPb1P)

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MA19C is a free machining, precipitation hardened leaded-nickel copper alloy featuring both high strength and electrical conductivity. Exhibiting excellent resistance to fatigue and thermal stress relaxation, MA19B / C19150 is very well suited for critical and high-reliability machined female electrical connector components such as spring contacts and coaxial pins.

Mechanical Properties

Round Rod

TEMPER NAME  TEMPER CODE  TENSILE STRENGTH YIELD STRENGTH ELONGATION MILL LIMITS 
min, ksi (MPa) min, ksi (MPa) min, %
1/4 HT TL01 70 (485) 60 (415) 8 .00394 - .3150"
(1 - 8mm)
1/2 HT TL02 80 (550) 70 (485) 5
3/4 HT TL03 85 (585) 75 (515) 3
HT TL04 90 (620) 80 (550) 2

Round Wire

TEMPER NAME  TEMPER CODE  TENSILE STRENGTH YIELD STRENGTH ELONGATION MILL LIMITS 
min, ksi (MPa) min, ksi (MPa) min, %
1/4 HT TL01 70 (485) 60 (415) 4 .0100 - .2362"
(0.25 - 6mm)
1/2 HT TL02 80 (550) 70 (485) 3
3/4 HT TL03 85 (585) 75 (515) 2
HT TL04 95 (655) 85 (585) 1

Physical Properties

Melting Point (Liquidus) 1980°F 1082°C
Melting Point (Solidus) 1900°F 1038°C
Annealing Range (min - max), 1hr 1290 - 1380°F 700 - 750°C
Density 0.320 lb/cu in 8.86 gm/cu cm
Electrical Resistivity (Annealed) 18.9 Ω·cir-mil/ft @ 68 °F 3.13 µΩ·cm @ 20 °C
Electrical Conductivity (Annealed) 55% IACS @ 68°F 0.320 MS-cm @ 20°C
Thermal Conductivity 146 Btu/sq ft/ft·hr/°F @ 68 °F 253 W/m·K @ 20 °C
Coefficient of Thermal Expansion 0.0000098°F (68-572°F) 0.0000176°C (20-300°C)
Modulus of Elasticity (Tension) 18,000 ksi 124,000 MPa
Modulus of Rigidity 6,000 ksi 41,000 MPa