TROJAN CuNi3Si Alloy: Ultra-Strong, High-Conductivity Copper‑Nickel‑Silicon Solution
2.0857 (CuNi3Si) ultimate super strength copper nickel silicon alloy, specially developed to provide a unique blend of mechnical and physical properties for high performance engineering. It has similar characteristics to Colsibro®, although Trojan is produced with increased levels of nickel and silicon in order to further increase the mechanical strength. It shows the following features and properties:
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 8.8 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elongation | 23.0 °C | 10 % |
Hardness, Brinell | 23.0 °C | 190 - 200 [-] |
Tensile strength | 23.0 °C | 690 - 800 MPa |
Yield strength Rp0.2 | 23.0 °C | 570 - 750 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.6E-5 1/K | for 0-400°C |
Melting point | 1060 - 1085 °C | ||
Thermal conductivity | 23.0 °C | 159 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 23.0 °C | 1.74E+7 S/m |
Specific Electrical conductivity | 30 % IACS |
Magnetic
| Property | Temperature | Value |
|---|---|---|
Relative magnetic permeability | 23.0 °C | 1 [-] |
Chemical properties
| Property | Value |
|---|---|
Copper | Balance |
Nickel | 2.6 - 4.5 % |
Silicon | 0.8 - 1.3 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Automotive: valve guides, bushes and valve seats;Electrical: current-carrying electrical components such as slip rings, squirrel cages, springs, rotary switch contacts, contact blades, short-circuit rings and heavy duty switchgear;Offshore & marine: Downhole tools, shear pins, hydraulic valve bodies, pump components and ball valves and mechanical seals;Other: Non-magnetic tooling, plastic mould tooling, friction pads and fibre optic connectors | |
| Corrosion properties | Excellent corrosion resistance | |
| General machinability | Good machinability | |
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