CAMK75900 Nickel Silver Coil or Bar
Material Designation
| GB | BZN18-20 |
| UNS | C75900 |
| EN | CuNi18Zn20 |
| JIS | / |
Chemical Composition
| Copper, Cu | 60.0 – 65.0% |
| Nickel, Ni | 17.0 – 19.0% |
| Zinc, Zn | Rem. |
Properties
| Density | 8.73 g/cm3 |
| Electrical Conductivity | 6 %IACS |
| Thermal Conductivity | 30 W/( m·K) |
| Coefficiency of Thermal Expansion | 16.5 μm/(m·K) |
| Modulus of Elasticity | 132 Gpa |
| Cold Workability | Excellent |
| Hot Working | Fair |
| Machinability (C36000 = 100 %) | 25 % |
| Machinability (C36000 = 100 %) | Excellent |
| Electroplating | Excellent |
| Resistance Welding (Butt Weld) | Excellent |
| Hard Soldering | Excellent |
| Inert Gas Shielded Arc Welding | Fair |
Characteristics
This alloy is lead-free nickel silver which has a silvery color and good resistance to tarnishing, has excellent cold working performance, high strength and high elasticity, Nickel silver is characterized by good temperature resistance necessary for welding and soldering.
Application
Mainly used in electronic industry shields, resonator shells, metal structures such as rivets, screws, tableware, bow parts, camera parts, templates and other optical parts, as well as spectacle frames, nameplates, hollow parts, etched bases, radio dials and the musical instrument industry.
Mechanical Properties
|
Specification mm (up to) |
Temper |
Tensile Strength Min. MPa |
Yield Strength Min. MPa |
Elongation Min. A% |
Hardness Min. HV5 |
|
COIL φ 0.5-15.0 |
H01 |
440 |
/ |
/ |
90 |
|
H02 |
550 |
/ |
/ |
140 |
|
|
H03 |
600 |
/ |
/ |
160 |
|
|
H04 |
650 |
/ |
/ |
180 |
|
|
H06 |
700 |
/ |
/ |
190 |
|
|
ROD |
H04 |
500 |
/ |
/ |
150 |
Advantage
1. We actively respond to any questions from customers and provide shorter delivery times. If customers have urgent needs, we will fully cooperate.
2. We focus on controlling the production process so that the performance of each batch is as consistent as possible and the product quality is excellent.
3. We cooperate with the best domestic freight forwarders to provide customers with sea, rail and air transportation and combined transportation solutions, and have plans for transportation difficulties caused by natural disasters, epidemics, wars and other factors.