C7701 C7521 C7541 Copper Nickel Zinc Strip
(Other Name: CuNi18Zn18; BZn18-18; C75200; C7521.)
Chemical Composition
| GB | ISO | ASTM | JIS |
| BZn18-18 | CuNi18Zn20 | C75200 | C7521 |
| BZn18-26 | CuNi18Zn27 | C77000 | C7701 |
| BZn15-20 | CuNi15Zn21 | C75400 | C7541 |
| GB | Chemical Composition(%) | |||||
| Cu | Ni+Co | Fe | Mn | Pb | Zn | |
| BZn18-18 | 63.0-66.5 | 16.5-19.5 | less than 0.25 | less than 0.50 | less than 0.05 | Balance |
| BZn18-26 | 53.5-56.5 | 16.5-19.5 | less than 0.25 | less than 0.50 | less than 0.05 | Balance |
| BZn15-20 | 62.0-65.0 | 13.5-16.5 | less than 0.5 | less than 0.30 | less than 0.02 | Balance |
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




Copper products that GNEE can provide
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Product name
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Copper Pipe / Tube
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Round copper pipe
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Wall thickness: 0.2-120mm
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Outside Diameter: 2mm~910mm
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Rectangular copper pipe
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Wall thickness: 0.2mm~910mm
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Size: 2mm*4mm~1016mm*1219mm
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Hardness
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1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc
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Standard
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GB/T5231-2001.GB/T1527-2006.JISH3100-2006, JISH3250-2006, JISH3300-2006, ASTM-B152M-06, ASTM-B187, ASTM-B75M-02, ASTM-B42-02, ASTM-B370 /ASTM-B152 etc
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Material
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T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800,
C10910,C10920,TP1,TP2,C10930,C11000,C11300,C11400,C11500,
C11600,C12000,C12200,C12300,TU1,TU2,C12500,C14200,C14420,
C14500,C14510,C14520,C14530,C17200,C19200,C21000,C23000,
C26000,C27000,C27400,C28000,C33000,C33200,C37000,C44300,
C44400,C44500,C60800,C63020,C65500,C68700,C70400,C70600,
C70620,C71000,C71500,C71520,C71640,C72200,etc.
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Usage
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Pressure vessels, Heat exchangers, Cotter, pins, Rivets, Radiators, Gaskets, Roofing, Gutters
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Package
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Standard export package,suit for all kind of transport,or as required.
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Material |
Copper, Brass, Bronze and special copper alloy |
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Grade |
ASTM |
C10100,C11000,C12200,C21000,C22000,C23000,C24000,C26000, |
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G/B |
TU1,T2,TP2,H96,H90,H85,H80,H70,H65,H63,H62,H59,HPb63-3, |
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JIS |
C 1011,C 1100,C 1220,C3604,C 2100,C 2200,C 2300,C 2400, C 2600, |
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BS |
Cu-OFE,C 101,Cu-DHP,CZ 125,CZ 101,CZ 102,CZ 103,CZ 106,CZ 107, CZ 108,CZ 109, CZ 123,CZ 124,CZ 121,CZ 111,CZ 133, Pb 104, |
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DIN/ISO |
CuZn5,CuZn10,CuZn15,CuZn20,CuZn30,CuZn35,CuZn33,CuZn36, |
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Shape |
Round, Square, Flat, Hexagon, Oval, Half-round or Customized |
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Dimension |
Bar/Rod |
Standard(Diameter 5-160 mm) or Customized |
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Wire |
Standard(Diameter 0.02-6 mm) or Customized |
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Plate/Sheet |
Standard(T 0.2-50 mm/W 200-3000 mm/L 6000 mm) or Customized |
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Strip |
Standard(T 0.05-1.5 mm/W 20-600 mm/L 20000 mm) or Customized |
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Tube/Pipe |
Standard(OD 3-360mm/Wall thickness 0.5-50 mm) or Customized |
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Standard |
GB/T,JIS,ASTM, ISO, DIN, BS, NF etc. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
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Package |
Plastic film + Wooden case or as per customer requirement |
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Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
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Deliver time |
According to order's quantity. |
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Shipment |
By sea, by air, DHL, UPS, FedEx etc. or as required |
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Application |
Electric light industry, machinery manufacturing, Building industry ,defense industry, and other fields Manufacturing industrial |
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Product name |
Copper plate |
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Width |
500-2000mm or as customer request |
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Thickness |
0.2-120mm or as customer request |
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Length |
1000-6000mm or as customer request |
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Processing service |
Welding, stamping, cutting, bending, unwinding |
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Application |
Widely used in electrical industry, medical equipment, construction, chemical, |
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Export packing |
Standard Marine packaging or custom packaging |
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Price Terms |
FOB CIF CFR,or We can also go into detail |
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Product Name |
Copper Wire |
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Standard |
AISI, ASTM, BS, DIN, EN, GB, JIS |
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Diameter |
0.6mm / 0.8mm / 0.9mm / 1.0mm / 1.2mm / 1.6mm |
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Thinckness |
0.12mm-3.0mm |
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Cu Content (%) |
99.998% |
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Alu-Zinc coating |
30-180g/m2 |
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Material |
C21000,C22000,C22600,C23000,C24000,C26000,C26130,C26800,C27000,C27200,C27400, etc. |
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Package |
Standard seaworthy export packing:
3 layers of packing, inside is kraft paper, water plastic film is in the middle and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve |
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Certification |
ISO, SGS, CE |
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Delivery |
8-20 days |
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Payment Terms |
T/T, LC, Western Union, Paypal, etc. |
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MOQ |
1 Ton |
copper CNC machined parts
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Processing |
CNC Turning,CNC Milling,Laser Cutting,Bending,Spining,Wire Cutting,Stamping, Electric Discharge Machining(EDM),Injection Molding,3D Printing,Rapid Prototype,Moulds etc. |
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Materials |
Aluminum:2000 series,6000 series,7075,5052,etc. |
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Stainlesss steel:SUS303,SUS304,SS316,SS316L,17-4PH,etc. |
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Steel:1214L/1215/1045/4140/SCM440/40CrMo,etc. |
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Brass:260,C360,H59,H60,H62,H63,H65,H68,H70,Bronze,Copper |
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Titanium:Grade F1-F5 |
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Plastic:Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc. |
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Anodized,Bead Blasted,Silk Screen,PVD Plating,Zinc/NickI/Chrome/Titanium Plating, |
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Tolerance |
+ / - 0 . 0 1 m m |
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Surface |
Min Ra 0.1~3.2 |
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CERTIFICATE |
ISO9001:2015,IOS14001:2015,ROSH. |

Why choose us?
Since our establishment in 2008, our company has specialized in the production and export of copper products. We utilize advanced production lines and a comprehensive quality control system. From raw materials to finished products, every step is rigorously inspected using precision instruments (such as spectrometers, metallographic microscopes, and conductivity testers) to ensure that our products meet international standards for composition, dimensions, and performance. We are committed to providing high-quality, high-precision copper products and reliable service to our global customers.
Email:sales@gneesteel.com
active members
years experience
Square Meters Built
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