Copper Beryllium

|Alloy Grade - CuBe

Material No. Unified Numbering System (UNS): C17510

Chemical Composition

Element Cu(1,2) Fe Ni Al Be Co Si
Min (%) 1.4 0.2
Max (%) Rem 0.1 2.2 0.2 0.6 0.3 0.2
  • Cu + Sum of Named Elements 99.5% min.
  • Cu value includes Ag.

This is heat treatable copper alloy. Heat treatment cycle consist of Solusionizing followed by ageing Process.

This alloy is superior to other high conductivity copper alloy in respect of mechanical & spring properties.

Common Fabrication Processes

  • Cold working
  • Drawing
  • Extruding
  • Forging
  • Hot working
  • Machining

Mechanical & Electrical Properties

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Form Condition Tensile Strength In N/MM2 Elongation In % Rockwell Hardness in B Scale-HRB Conductivity% IACS at 20°C
Rod Precipitation Hardened 760 Min. 8 Min. 92 Min. 45 Min.
Bar, Plate, Flat Precipitation Hardened 700 Min. 8 Min. 90 Min. 45 Min.

Physical Properties

Melting Point – Liquidus °C 1068
Melting Point – Solidus °C 1029
Density lb/cu in. at 20°C 0.317
Specific Gravity 8.77
Electrical Conductivity% IACS at 20°C 48(1)
Electrical Conductivity% IACS at 20°C 45(2)
Thermal Conductivity Btu/ sq ft/ ft hr/ °C at 20°C 120
Coefficient of Thermal Expansion 20-200 10⁻⁶ per °C (20 – 200°C) 9.8
Specific Heat Capacity Btu/ lb /°C at 20°C 0.1
Modulus of Elasticity in Tension ksi 19200
Modulus of Rigidity ksi 7500
  • Cold worked and precipitation hardened condition. HT Temper
  • AT Temper

Applicable Form & Size

Form Size

Dia: Ø16 mm-Ø100 mm

Length: 0.5-1 Mtr


Thick: 6 mm-50 mm

Width: 35 mm -100 mm max

Length: 0.5-1 Mtr

Forged Block

Thick: 50 mm-100 mm

Width: 100 mm-250 mm max

Length: 100-400 mm

Apart from above we can also manufacture as per customer specification.

Typical Applications

Product Category Product
Electrical/ Fasteners/ Industrial
  • Resistance Welding Products
  • PVC Injection Moulding
  • Moulding for sanitary fittings