BECOL-25 Beryllium Copper (TD04) – Superior Conductivity & Strength

C17200 (CuBe2) TD04, also known as 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 temper TD04 (H). These require heat treatment to produce the alloy’s maximum strength and conductivity.

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	2 %
Hardness, Rockwell C	23.0 °C	37 - 45 [-]
Shear modulus	23.0 °C	50 GPa
Tensile strength	23.0 °C	1210 - 1482 MPa
Yield strength Rp0.2	23.0 °C	1000 - 1100 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

Beryllium Copper BECOL-25 – High Strength, Superior Conductivity (TB00 Temper) Beryllium Copper (BECOL-25) TH04 – High Conductivity, Superior Machinability

Metal