The chemical composition of alloy C105 consists of 99% copper combined with 0.9-1.4% nickel and 0.05-0.35% iron. These elements give the alloy various desirable characteristics, including good formability, strength at elevated temperatures, excellent weldability and resistance to atmospheric corrosion.
| Nominal | Minimum | Maxiumum | |
|---|---|---|---|
| Copper + Silver | - | 99.95 | - |
| Silver | - | 10 oz/ton |
The mechanical properties of grade C105 include tensile strength (Rm) of 400-550 MPa (58-81 ksi), yield strength (Rp0.2) of 60 MPa (9 ksi) or more depending on the formulation chosen by the manufacturer; hardness (HB) typically ranges between 50-80 HBW; elongation (A50) is typically 28%, while shear strength is approximately 150 MPa (22 ksi).
The physical properties of Copper C105 alloy include a density of 8.89 g/cm3; melting point of 1040°C; thermal expansion coefficient of 9×10−6/K; electrical resistivity at 20°C 0.55×10−6 Ω·m; specific heat capacity at 20°C 386 J/(kg·K); modulus of elasticity 183 GPa; thermal conductivity 140 W/(m·K).
Due to its impressive combination of mechanical properties such as high tensile strength and good formability, as well as its excellent electrical conductivity at elevated temperatures-Copper C105 can be used for a wide variety of applications in various industries such as aerospace engineering, power generation plants or consumer electronics just to name a few examples.
Copper C105 has excellent atmospheric corrosion resistance when compared to other materials due to its high nickel content, which helps it resist oxidation in air at higher temperatures than other alloys would be able to withstand under similar conditions without any additional coating or protection being applied to the surface like paint or plating etc.
Copper C105 is not recommended for heat treatment because it cannot be hardened or strengthened through this process since it already has relatively high levels of hardness due to its chemical make-up consisting mainly of copper combined with small amounts of iron and nickel, which are known for their hardness even without heat treatment increasing them further.
When machining Copper C105, the cutting speed should be kept low due to the fact that this alloy does not contain any free-cutting elements that would help increase throughput times during machining processes such as turning, drilling etc. A lubricant should also be used when machining this material in order to reduce the friction generated at higher speeds which could lead to premature failure on certain components, especially if they are being machined from thinner sheets rather than from thicker blocks etc.
Welding is possible on Copper C105 but only through special techniques such as TIG welding, where inert gases are used in order to protect the molten metal from oxidation during weld pool formation – these techniques require greater skill levels but also produce superior results when compared with more traditional methods like MIG welding which can lead to porosity issues if not done correctly due to oxygen contamination etc…
