CZ131 / CW606N - Riviting & Turning Brass

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CW606N / CZ131 is a riveting and turning brass with a duplex phase structure containing a fine dispersion of lead particles to improve machinability. In addition the alloy offers a high general corrosion resistance combined with a good strength and ductility.

The CW606N / CZ131 has a high enough copper content to retain good cold heading and cold forming properties together with the ability to be crimped and knurled. Typically used for the production of headed components and is the ideal choice for components requiring forming and machining. 

Related Specifications

CZ131

C35300

CW606N

CuZn36Pb2

Chemical Composition

Copper                  

61.0-63.0%

Lead            

1.5-2.5%

Iron

0.2% max

Zinc             

Rem

Others            

0.50% max

 Key Features

  • Good strength and ductility
  • High general corrosion resistance
  • Ability to be machined and formed

Mechanical Properties (Specification minima 18-40mm)

UTS                                

350 N/mm2

Proof Strength

-

Elongation

25%

Typical Physical Properties

Melting Point

910°C 

Density

8.50 g/cm³

Specific Heat

380 J/Kg°K

Thermal conductivity (20°C)

117 W/m°K

Thermal expansion coefficient (20-200°C)

20 x 10-6 per °C

Electrical conductivity                            

26 % IACS 

Electrical Resistivity  

0.066 ohm mm2/m

Fabrication Properties

Hot Working Temperature Range

700-800°C

Hot Formability

Good

Cold Formability                                   

Good

Cold Reduction Between Anneals              

50%

Machinability rating
(free cutting brass = 100)            

75 %

Annealing Temp. Range                         

450-650°C

Stress Relieving Temp. Range                 

250-350°C

Joining Methods

Soldering

Excellent

Brazing

Good

Oxy-acetylene welding

Not recommended

Gas-shielded arc welding

Not recommended

Resistance welding:   Spot and Seam

Not recommended

                             Butt

Fair

Typical Uses:

The CW606N / CZ131 is used for nuts, rivets, screws and other headed components, together with builders hardware, plumbing fittings, faucet seats, instrument parts, clock and watch components, battery terminals and other parts requiring a good machinability and reasonable cold forming.

This technical information is given by Holme Dodsworth Metals without charge and the user shall employ such information at their own discretion and risk. For more detailed technical advice on temper selection, fabrication, joining, machining, physical and mechanical data please contact us as space does not permit the listing of every feature of the material

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Holme Dodsworth Metals Limited.
59/69 Heaton Park Road.
Newcastle Upon Tyne NE6 1SQ
Registered in England. Company No. 00842702