W Cu Alloy

Tungsten Alloys and its applications:  

W Cu Alloy

Tungsten/Copper is a powder metallurgical material produced by the means of infiltration with copper contents from

10 to 40% typically 75%Tungsten 25% Copper, materials are back-cast with copper and can be joined by welding

or brazing with various supporting materials.

Advantages of WCu:

  • high arc resistance combined with good electrical conductivity
  • high thermal conductivity
  • low thermal expansion
  • back-castable with Cu

Typical areas of application:  

  • arcing contacts in high and medium voltage breakers for transmission and distribution of electrical power
  • carrier plates or heat sinks as passive cooling elements of electronic devices
  • erosion electrodes for EDM made of Sparkal
  • electrodes for other applications (surge protection, welding, laser applications)

Tungsten Heavy Alloys

Tungsten alloys are materials with a high tungsten content and low amounts of NiFe (binder material). They show similar high densities as pure tungsten, but they are much easier to machine.

Tungsten Heavy Alloys are characterised in particular by their excellent strength and ductility.  

Tungsten Heavy Alloy 90%W + Ni + Cu

This product is a general purpose high density tungsten-nickel-copper material. It provides the optimum combination of properties in this range of materials.

W

Ni

Cu

Fe

Other

Density g/cm3

Hardness HV/Rockwell

90

6

  -

 

16.9

19 HRC

Product uses: WHA 90 NC can be used for balancing weights, vibration damping tool supports, radiation shielding and gyroscopes, and can be supplied in a variety of forms from rods, bars, plates, discs or finished machined components.

Tungsten Heavy Alloy 95%W + Ni + Fe

This product is a high-density tungsten-nickel-iron material with a maximum density and high ductile strength for

this group of materials.

 

W

Ni

Cu

Fe

Other

Density g/cm3

Hardness HV/Rockwell

95

3.5

  -

1.5

 

18.1

30 HRC

Product uses: WHA 95NiFe can be used for balance weights and radiation shielding applications and can be supplied in a variety of forms from rods, bars, plates, discs or finished machined components.

Tungsten Heavy Alloy 93%W + Ni + Fe + Mo

This product is a high-density tungsten-nickel-iron-molybdenum material.

W

Ni

Cu

Fe

Other

Density g/cm3

Hardness HV/Rockwell

93

4

  -

2

1 Mo

17.8

30 HRC

Product uses: Mainly used in Defense applications.

This product can be supplied in a variety of forms from rods, bars, plates, discs or finished machined components.  

Advantages Tungsten alloys:  

  • high density from 17.0 to 18.5 g/cm3
  • high absorption capacity against X-rays and gamma rays
  • good machinability  
  • high Young's modulus and very good mechanical properties
  • harmless to the health and environment  

Typical areas of application:  

  • protection shields for nuclear radiation
  • counter weights for the engine construction
  • aerospace
  • mechanical engineering
  • fine mechanical technology
  • forming
  • sports
 

Central Metals & Alloys Ltd

Tel: 44 (0) 1455 291 780
Fax: 44 (0) 1455 292 380
@: sales@centralmetals.co.uk

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