Beryllium Copper BECOL-25 – High Strength, Superior Conductivity (TB00 Temper)
C17200 (CuBe2) is the most commonly specified beryllium copper and offers a wide combination of properties including good electrical conductivity, good formability and very high electrical and mechanical properties after heat treatment. This grade is supplied in age hardenable tempers TB00 (A). These require heat treatment to produce the alloy’s maximum strength and conductivity. The solution annealed TB00 (A) temper contains no cold work and is the softest temper.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 8.26 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 23.0 °C | 130 GPa |
Elongation | 23.0 °C | 3 % |
Hardness, Rockwell C | 23.0 °C | 36 - 42 [-] |
Shear modulus | 23.0 °C | 50 GPa |
Tensile strength | 23.0 °C | 1140 - 1380 MPa |
Yield strength Rp0.2 | 23.0 °C | 900 MPa |
Thermal
| Property | Temperature | Value |
|---|---|---|
Thermal conductivity | 23.0 °C | 84 - 130 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 23.0 °C | 7.9E-8 Ω·m |
Specific Electrical conductivity | 25 % IACS |
Chemical properties
| Property | Value | Comment | |
|---|---|---|---|
Beryllium | 1.8 - 2 % | ||
Cobalt | 0.3 % | max. | |
Copper | Balance | ||
Other | 0.6 % | max., Co+Ni+Fe | |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Aerospace: Landing gear, bearing bushes and high performance fasteners;Automotive: Valve guides, bushes and valve seats;Offshore & marine: Offshore drilling and instrumentation equipment, downhole tooling, valve, pump and shaft components;Other: Deep drawing tooling, plastic moulding dies, tools and plungers, die-casting plunger tips, non-magnetic and non sparking tools, electrical and electronic connectors, springs, fasteners, switchgear, resistance welding electrodes and equipment, flash butt welding dies and inserts, seam welding electrode shafts | |
| Corrosion properties | High corrosion resistance | |
| General machinability | Very good machinability | |
Metal
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