CuNi12Zn24 - UNS.C75700 Nickel Silver Alloys, also called C75700 Copper Nickel Zinc strip, 64-12-24 respectively, which has good formability, good corrosion and tarnish-resistance performance.
1. Introduction of the C75700 Cu64Ni12Zn24 Copper Nickel Zinc strip
C75700 Nickel Silver
CuNi12Zn24 - UNS.C75700 Nickel Silver Alloys, also called Copper-Nickel-Zinc alloys, 64-12-24 respectively, which has good formability, good corrosion and tarnish-resistance performance, and this alloy has the pleasing silver-like color..
2. Grade and temper for C75700 Copper Nickel Zinc strip
Grade: UNS C75700, CDA757 , CuNi12Zn24, JIS C7451, BZn12-24,
Temper: O(M), 1/4H(Y4), 1/2H(Y2), H(Y), HH(T)
3. The chemical composition of copper UNS C75700
C75700 Cu64Ni12Zn24 Chemical Composition:
Cu: 63.0-66.00%
Ni: 11.00-13%
Fe: 0.5% Max.
Pb: 0.02% Max.
Mn: 0.30% Max.
Zn: Balance
|
GB |
UNS |
EN |
JIS |
Cu% |
Ni% |
Zn% |
|
BZn15-20 |
C75700 |
CuNi12Zn24 |
C7451 |
63-66 |
11-13 |
Rem |
4. Properties of of C75700 Cu64Ni12Zn24 Copper Nickel Zinc strip
|
Physical properties for C75700 alloy |
||||
|
Density g/cm3 |
Electrical conductivity %IACS |
Thermal conductivity W/(m.K) |
Modulus of elasticity GPa |
Specific heat J/(g.K) |
|
8.7 |
7 |
40 |
125 |
0.38 |
|
Fabrication properties for C75700 alloy |
|||||
|
cold-workability |
machinability |
electric plating property |
hot dip tin plating property |
weldability |
corrosion |
|
excellent |
suitable |
excellent |
excellent |
good |
excellent |
Mechanical Properties for C75700 Cu64Ni12Zn24
State
Hardness HV
Tension test
bending test
Thickness mm
Tensile
strength MPa
elongation
%
thickness
angles
ID
0
-
0.1-5.0
≥325
≥25
≤1.6
180°
sticking
closely
1/2H
110-170
0.1-5.0
410-500
≥10
≤1.6
180°
100%
of thickness
H
≥135
0.1-0.15
490-580
≥4
≤1.6
180°
200% of thickness
>0.15-5.0
≥550
≥2
5. Application of C75700 Cu64Ni12Zn24 Copper Nickel Zinc strip
C75700 CuNi12Zn24 Nickel Silver is mainly used in manufacture of corrosion-resistant structural parts, such as various precision instruments, springs, sockets, covers and other parts of advanced electronic components.
It is also used in musical instruments, tableware, glasses frames and decoration works .
6. Manufacture plant of C75700 Cu64Ni12Zn24Copper Nickel Zinc strip
7. Tests and inspection for C75700 Cu64Ni12Zn24 Copper Nickel Zinc strip
Test instrument : Metallographic Microscope; Digital Light Processor; Strength Tester; Hardness Tester.
8. Mill certificate for C75700 Cu64Ni12Zn24 Copper Nickel Zinc strip
10. Packing and shipping for C75700 Cu64Ni12Zn24 Copper Nickel Zinc strip
Packing:
First wrapped by anti-rust paper, second wrapped by plastic film, then packed by wooden box or wooden pallet ..
Shipping:
We
will choose the best way according to customer’s requests.
1.
By Air, to the indicated airport.
2. By Express (FedEx, UPS, DHL, TNT,EMS), to the indicated address.
2. By Sea, to the indicated sea port.
11. Questions and Answers
a1. Do you have ISO certificate?
Yes, we obtained ISO9001
a2. How long is your delivery time for C75700 Cu64Ni12Zn24 strip?
If the master coil is available, 3-7 days do slitting will be ready , if not, will need 25 days for new production.
a3. Can you help us to choose suitable material?
Yes, we can recommend the most suitable material according to your application.
a4. How do you control quality?
We produce strictly according to customer’s drawings and requests, here are strict control plan in every process, full check of each parts, strive to provide customer 100% quality products, ROHS/SGS test report, material certificate are available.
a5. Do you provide sample? Free or charge?
Yes, if the sample in stock available, free of charge, if not, need to charge some mfg cost.
