C7521 Germany Silver Strip / Nickel Silver Strip / Copper Nickel StripNickel Silver Alloy:C75200,C77000,C75400, CuNi18Zn20,CuNi18Zn27,CuNi15Zn20,etc.
Copper Nickel Alloy:C71000,C71500, C70600,
CuNi10,CuNi19,CuNi20,CuNi25,CuNi30,CuNi34,CuNi40,CuNi44etc.
Shape:Sheet, Strip,Foil, Wire, ribbon,
Features for Nickel Silver Strips/Copper Nickel Zinc Strips:1) Good color
2) High toughness
3) High strength
4) High stability
5) Excellent elasticity with fine silver gloss
6) Good fatigue
7) Rust and corrosion resistance properties
8) C7521 and C7541 have very good deep-drawing performance
Applications:1) Shielding material for communication electronics
2) Antenna material
3) EMI-shielding material
4) Spring contact
5) Flexible terminal
6) Environmentally-friendly plating-free electronic parts and components
7) Quartz oscillator
8) High-level material
9) Electric material
| Alloy | Condition | Thickness
(mm) | Tensile strength
(Mpa) | Elongation
(%) | Hardness
(HV) |
C7541
CuNi15Zn21 | S |
≥0.3 | ≥340 | ≥35 | - |
| 1/2H | 440~570 | ≥5 | - |
| H | 540~690 | ≥1.5 | - |
| UH | ≥640 | ≥1 | - |
C7521
CuNi18Zn20 | S |
≥0.3 | ≥375 | ≥20 | - |
| 1/2H | 440~570 | ≥5 | 120-180 |
| H | ≥540 | ≥3 | ≥150 |
C7701
CuNi18Zn27 | S |
≥0.3 | ≥400 | ≥40 | -- |
| 1/2H | 540~655 | ≥8 | 150~210 |
| H | 630~735 | ≥4 | 180~240 |
| UH | 705~805 | -- | 210~260 |
| CuNi19 | S | ≥0.3 | ≥290 | ≥30 | - |
| H | ≥390 | ≥5 | - |
