C7521 Nickel Silver Strip Copper Alloys 0.2mm X 300mm 1/2 Hard ...

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C7521 Nickel Silver Strip Size 0.2mmx300mm 1/2 Hard Brigt UNS.C75200

Same Name

GB: Bzn18-18 UNS C752000 EN CuNi18Zn20 JIS C7521

Nickel Silver Alloys, also called Copper - Nickel - Zinc alloys, 65 - 18 - 18 respectively.which has good formability, good corrosion and tarnish - resistance performance, and this alloy has the pleasing silver - like color.

Chemical Composition

Cu% 62~66 Ni%6.5~19.5 Zn% Re

Mechanical properties

Mechanical properties
State Hardness HV Tension test bending test
Thickness mm Tensile strength MPa elongation % thickness angles ID
0 - 0.1-5.0 ≥375 ≥20 ≤1.6 180° sticking closely
1/2H 120-180 0.1-5.0 440-570 ≥5 ≤1.6 180° 100% of thickness
≤0.5 200% of thickness
H 150-210 0.1-0.15 540-640 - ≤1.6 180° 200% of thickness
>0.15-5.0 ≥3 ≤0.5 400% of thickness
EH ≥185 0.1-5.0 ≥610 - - - -

Features

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

Physical properties,fabrication properties

Physical properties fabrication properties
density g/cm3 electrical conductivity %IACS thermal conductivity W/(m.K) modulus of elasticity GPa specific heat J/(g.K) cold-workability machinability electric plating property hot dip tin plating property weldability corrosion
8.73 6 32 125 0.34 excellent suitable excellent excellent good excellent

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

C7521 Nickel Silver Strip Copper Alloys 0.2mm x 300mm 1/2 Hard Bright UNS.C75200 0

Style of supply

Alloys Name Type Dimension
C7521W Wire D=0.03mm~8mm
C7521R Ribbon W=0.4~40 T=0.03~2.9mm
C7521S Strip W=8~250mm T=0.1~3.0
C7521F Foil W=6~120mm T=0.003~0.1
C7521B Bar Dia=8~100mm L=50~1000

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