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[China]
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Address: Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Contact name:Qiu
Ohmalloy Material Co.,Ltd |
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0.038mm*50mm Copper-Nickel-Zinc alloy C7521 Strip for Electrostatic
plate of EHV Transformer
Description:
C7521 is Copper-Nickel-Zinc alloy, also called nickel silver, German silver, new silver, nickel brass, albata, or electrum, is a copper alloy with nickel and often zinc. Nickel silver is named for its silvery appearance, but it contains no elemental silver unless plated.
The equivalent for C7521 in other countries is C76400,CDA764, CuNi18Zn20,JIS C7521,BZn18-20,NS 106,CW 409 J
| Symbol or Brands | Temper | Tension test | Hardness test | Chemical Composition | |||||||
| GB | JIS | UNS | Thickness mm | Tensile strength MPa | Elongation% | Thickness mm | Vickers Hardness HV | Cu | Ni | Zn | |
| Bzn18-18 | C7521 | C75200 | 0 | 0.08-10.0 | ≥375 | ≥20 | 63.5-66.5 | 16.5-19.5 | Balance | ||
| 1/2H | 0.08-10.0 | 440-570 | ≥5 | ≥0.06 | 120-180 | ||||||
| H | 0.08-10.0 | ≥540 | ≥3 | ≥0.06 | 150-200 | ||||||
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 C7701 have very good deep-drawing performance
Main application:
Copper-nickel-zinc alloy strip is widely used in antenna, cellphone
shielding case,crystal resonator shell, silverware, jewelry,
glasses, medical apparatus and instruments, zipper and keys’
industry.
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