C19150
UNS.C19150 Leaded Nickel Copper C19150 is unique precipitation hardening alloys containing copper, lead, nickel and phosphorus.
C19150
UNS.C19150 Leaded Nickel Copper C19150 is unique precipitation hardening alloys containing copper, lead, nickel and phosphorus. The nickel and phosphorus in the alloy combine to form nickel phosphate, which dissolves in the copper on heating to a suitable temperature, and can be retained by quenching. Subsequent aging will precipitate the nickel phosphate from solid solution in a highly dispersed manner thereby creating a remarkable hardening and strengthening effect with excellent stress relaxation properties. Subsequent cold working increases the strength still further.
Since the lead and nickel phosphate are not in solid solution when the alloys are in the precipitation hardened condition, the electrical conductivities are comparatively high. When suitably heat treated, one can expect a conductivity of about 55% IACS. The lead content also imparts good machinability to both alloys.
The properties of UNS.C19150 alloys make it an ideal material for machined, formed or cold headed electrical contacts, connector pins and sockets, particularly for slotted cylindrical contacts for coaxial and circular connectors.

Where C19150 Is Used
Typical end uses published by Vital for this grade.
UNS.C19150 Leaded Nickel Copper alloys:
Electrical Industry
Electrical Contacts, Connector Pins, Sockets
Industrial
Electronic Equipment, Cylindrical Contacts for coaxial and circular connector
Specifications And Material Data
| Ni | 0.80-1.20% |
|---|---|
| Pb | 0.50-1.00% |
| P | 0.15-0.35% |
| Sn | 0.05% Max. |
| Zn | 0.50% Max. |
| Fe | 0.05% Max. |
| Cu | Reminder |
Cu value include Ag, and Cu + others elements to be 99.50% Min.
| Density at 68°F | 0.320 Lbs./In.3 |
|---|---|
| Specific Gravity | 8.89 |
| Melting Point (Liquidus) | 1082°C (1980°F) |
| Coefficient of Thermal Expansion per °F | 9.8 x 10-6 (77-212°F) |
| Electrical Conductivity at 68°F (volumetric) | 50% IACS Min.(aged and drawn) |
| Thermal Conductivity Btu/ft.2/ft./hr./°F at 68°F | 146 |
| Modulus of Elasticity - Tension | 18,000 ksi |
1). the units are based upon US Customary. 2). the typical physical properties apply to age hardened products.
Sizes And Product Forms
Available Sizes
Custom Diameter & Sizes, Random Mill lengths
Available Products And Forms
Round bars, Flat bars, Square bars, Wires, Rod
Custom shapes are available upon request.
International Specification
| Rods/Bars/Wires | UNS.C19150 |
|---|---|
| European Standards | CuNi1Pb0.5P, DIN 17666 |
Unless otherwise specified, material will be produced to ASTM.
Abbreviations
- ASTM — American Society for Testing and Materials
Tempers And Mechanical Data
The detailed Mechanical Properties will be available on request from customers.
| Rods/Bars/Wires | 1/2 H (TD02), H (TD04), HT(TH04) |
|---|
Frequently Asked Questions
Answers drawn from the Vital technical data for this page.
What is the chemical composition of C19150?
C19150 is supplied to the following nominal composition:
- Ni: 0.80-1.20%
- Pb: 0.50-1.00%
- P: 0.15-0.35%
- Sn: 0.05% Max.
- Zn: 0.50% Max.
- Fe: 0.05% Max.
- Cu: Reminder
What are the typical physical properties of C19150?
Typical values published by Vital for C19150:
- Density at 68°F: 0.320 Lbs./In.3
- Specific Gravity: 8.89
- Melting Point (Liquidus): 1082°C (1980°F)
- Coefficient of Thermal Expansion per °F: 9.8 x 10-6 (77-212°F)
- Electrical Conductivity at 68°F (volumetric): 50% IACS Min.(aged and drawn)
- Thermal Conductivity Btu/ft.2/ft./hr./°F at 68°F: 146
- Modulus of Elasticity - Tension: 18,000 ksi
Which international specifications does C19150 meet?
- Rods/Bars/Wires: UNS.C19150
- European Standards: CuNi1Pb0.5P, DIN 17666
Can you supply mechanical property data for C19150?
The detailed Mechanical Properties will be available on request from customers.
Which tempers are most commonly used?
- Rods/Bars/Wires: 1/2 H (TD02), H (TD04), HT(TH04)
Which product forms and sizes are available?
Custom Diameter & Sizes, Random Mill lengths Round bars, Flat bars, Square bars, Wires, Rod Custom shapes are available upon request.
How do I request a quotation?
Email the grade, temper, dimensions and quantity to [email protected]. Unless otherwise specified, material is produced to ASTM.
Quote C19150 To Your Specification
Send grade, temper, dimensions and quantity. Custom shapes are available on request.







