Audited Supplier
C7521
Bright
8.73
6
32
125
0.34
Excellent
Suitable
Excellent
Excellent
Strip
Low Carbon
Cu, Ni, Zn
Ualloy
in Coil, Carton, Wooden Case
RoHS, SGS
Zhejiang, China
7410121000
Product Description
Low Price C7701 C7521 C75200 Copper Nickel Zinc Alloy Strip
Description
Copper-nickel-zinc alloy strip is based on nickel as the main alloying elements, correspondingly known as zinc white copper strip and manganese white copper strip. Copper-nickel alloy has good corrosion resistance and medium strength, high plasticity. Copper-nickel-zinc alloy strip has excellent mechanical properties, excellent corrosion resistance, good processing forming under hot and cold , easy to cut. And it is used in the manufacturing of instruments, meters, medical equipment, daily necessities and other precision parts.
(Other Name: CuNi18Zn18; BZn18-18; C75200; C7521.)
Chemical Content(%)
Mechanical Properties
Processability
Bending Performance (Bending Thickness: <=0.5mm; Bending Width: 10mm)
Applications
Production Process
Description
Copper-nickel-zinc alloy strip is based on nickel as the main alloying elements, correspondingly known as zinc white copper strip and manganese white copper strip. Copper-nickel alloy has good corrosion resistance and medium strength, high plasticity. Copper-nickel-zinc alloy strip has excellent mechanical properties, excellent corrosion resistance, good processing forming under hot and cold , easy to cut. And it is used in the manufacturing of instruments, meters, medical equipment, daily necessities and other precision parts.
(Other Name: CuNi18Zn18; BZn18-18; C75200; C7521.)
Chemical Content(%)
| UALLOY Brand | Nickel | Zinc | Copper |
| UALLOY-C7521 | 18 | Bal | 64 |
Mechanical Properties
| Density of g/cm³ | 8.7 |
| Electrical Conductivity @20ºC(% IACS) | 7 |
| Thermal conductivity @20ºCW/(mK) | 32 |
| Coefficient of Thermal Expansion per °C | 16.8 x 10-6 /K |
| Specific Heat J/(g·k) | 0.34 |
| Poisson's ratio | 0.33 |
| Modulus of Elasticity (GPa) | 135 |
| Status | Tensile Strength | Yield Strength | Elongation | Hardness | |
| MPa | ksi | MPa | A50% | HV | |
| R375(O) | ≥375 | ≥55 | ≥180 | ≥20 | 90-120 |
| R440(H/2) | 440-570 | 54-83 | ≥250 | - | 120-180 |
| R540(H) | 540-640 | 79-93 | ≥420 | - | 150-210 |
| R610(EH) | ≥610 | ≥89 | ≥520 | - | ≥185 |
Processability
| Cold working | Very Good |
| Cutting | Not suitable |
| Plating | Very Good |
| Hot Dip Galvanizing | Very Good |
| Laser Welding | Good |
| Resistance Welding | Very Good |
| Soldering | Very Good |
Bending Performance (Bending Thickness: <=0.5mm; Bending Width: 10mm)
| Status | 90°R/T | 180°R/T | ||
| Good Way | Bad Way | Good Way | Bad Way | |
| R375(O) | 0 | 0 | 0 | 0 |
| R440(H/2) | 0 | 1 | 0 | 2 |
| R540(H) | 1 | 3 | 2 | 4 |
| R610(EH) | - | - | - | - |
Applications
| Signal Connector | Very Suitable |
| Power Connector | Not Suitable |
| Miniaturized Connector | Suitable |
| Switch/Relay | Suitable |
| Semiconductor | Very Suitable |
Production Process
