Cupro NS CuNi2SiCr Nickel Silicon Copper Alloy
CuproNSS® is a copper alloy developed by Sağlam Metal.
Suitable for applications requiring high mechanical properties along with good electrical and thermal conductivity.
Automotive Electrical
Clips Clips
Connectors Connectors
Relays Leadframes
Sockets Pins
Springs Relays
Terminals Sockets
Springs
Terminals
| Elements | ||||
|---|---|---|---|---|
| Cu(1,2) | P | Ni | Si | |
| (1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. |
||||
| Min (%) | 0.01 | 0.8 | 0.15 | |
| Max (%) | Rem | 0.05 | 1.8 | 0.35 |
| Form | Temper | Temper Code | Tensile Strength (ksi) |
YS-0.2% Offset (ksi) |
Elongation (%) |
Vickers Hardness, 500 gm |
|---|---|---|---|---|---|---|
| * Measured at room temperature, 68°F (20°C). | ||||||
| Flat Products | 1/2 Hard | H02 | 60 Min | 54 Min | 7 Min | 125 Min |
| 1/4 Hard | H01 | 52 Min | 40 Min | 8 Min | 100 Min | |
| 3/4 Hard | H03 | 67 Min | 62 Min | 5 Min | 135 Min | |
| Extra Hard | H06 | 75 Min | 72 Min | 3 Min | 150 Min | |
| Extra Spring | H10 | 95 Min | 85 Min | 1 Min | 180 Min | |
| Hard | H04 | 71 Min | 66 Min | 4 Min | 145 Min | |
| Mill-hardened Temper, TM – 3/4 HM | TM03 | 67 Min | 50 Min | 12 Min | ||
| Mill-hardened Temper, TM – Hard | TM04 | 71 Min | 60 Min | 10 Min | 145 Min | |
| Mill-hardened Temper, TM – XHMS Spring | TM08 | 84 Min | 74 Min | 6 Min | 170 Min | |
| Mill-hardened Temper, TM -XHM – Extra Hard | TM06 | 75 Min | 64 Min | 8 Min | 150 Min | |
| Spring | H08 | 84 Min | 78 Min | 2 Min | 170 Min | |
| Melting Point – Liquidus°F | 1944 |
|---|---|
| Densitylb/cu in. at 68°F | 0.322 |
| Specific Gravity | 8.94 |
| Electrical Conductivity% IACS at 68°F | 55 (1) |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 149 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 9.3 |
| Modulus of Elasticity in Tensionksi | 18500 |
| Modulus of Rigidityksi | 6400 |
| Soldering | Good |
|---|---|
| Brazing | Good |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Good |
| Coated Metal Arc Welding | Fair |
| Spot Weld | Good |
| Seam Weld | Good |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Excellent |
| Forgeability Rating | 50 |
| Machinability Rating | 30 |
| Form | Specific Sub-Form | Application | System | Standard | Description |
|---|---|---|---|---|---|
| Sheet & Strip | ASTM | B422/B422M | COPPER-ALUMINUM-SILICON-COBALT ALLOY AND COPPER-NICKEL-ALUMINUM-SILICON ALLOY SHEET AND STRIP | ||
| Strip | ASTM | B888/B88M | COPPER ALLOY STRIP FOR USE IN MANUFACTURE OF ELECTRICAL CONNECTORS OR SPRING CONTACTS |
