ToughMet® 3AT Rod AT90 – High-Strength, Wear-Resistant Copper Alloy
ToughMet 3 AT alloy is a wrought, spinodally hardened copper alloy engineered for high strength and hardness. It resists mechanical wear, galling, stress relaxation, corrosion and erosion. ToughMet 3 alloy retains its strength at elevated temperature. It is non-magnetic and easy to machine into complex components.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 9 g/cm³ |
Dimension
| Property | Value |
|---|---|
Diameter | 25.4 - 228.6 mm |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 23.0 °C | 144 GPa |
Elongation | 23.0 °C | 12 - 15 % |
Hardness, Rockwell C | 23.0 °C | 26 [-] |
Poisson's ratio | 23.0 °C | 0.33 [-] |
Tensile strength | 23.0 °C | 760 MPa |
Yield strength Rp0.2 | 23.0 °C | 620 MPa |
Thermal
| Property | Temperature | Value |
|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.64E-5 1/K |
Thermal conductivity | 23.0 °C | 38 W/(m·K) |
Electrical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Electrical conductivity | 23.0 °C | 4.00E+6 S/m | max. |
Specific Electrical conductivity | 7 % IACS | max. |
Magnetic
| Property | Temperature | Value |
|---|---|---|
Relative magnetic permeability | 23.0 °C | 1 [-] |
Chemical properties
| Property | Value |
|---|---|
Copper | Balance |
Nickel | 15 % |
Tin | 8 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | ToughMet 3 AT alloy is used for bushings and bearings for commercial aircraft, high performance engines as well as mining, industrial and heavy equipment. It is also used to make oil and gas drilling hardware, including rotary steerable housings, kelly valve seats and pressure housings. | |
| Surface Finish | Mill hardened finish | |
Metal
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