CZ120 / CW608N - Engraving Brass

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CW608N / CZ120 is a duplex phase brass, containing a 2% lead addition finely dispersed throughout the microstructure to offer free cutting properties. Primarily a sheet grade it is often referred to as engraving brass due to its excellent machining qualities.

Traditionally used for machine engraved nameplates and signs it also offers a good combination of strength, corrosion resistance and hot formability. This combination of attributes make it very desirable for many applications including architectural metal work and decorative items. If rod material is required in addition to the sheet grade CW617N / CZ122 is the equivalent grade. This is also available in a comprehensive range of sizes in round and hexagon from Holme Dodsworth stocks. 

Related Specifications

CZ120

C37700

CW608N

CuZn39Pb2

Nominal Composition

Copper                  

58.0-60.0%

Lead            

1.5-2.5%

Zinc             

Rem

Others         

0.3% max

Key Features

  • Very good hot forming properties
  • Good Corrosion resistance
  • Excellent free cutting properties

Typical Physical Properties

Melting Point

895°C 

Density

8.4 g/cm³

Specific Heat

380 J/Kg°K

Thermal conductivity (RT)

117 W/m°K

Thermal expansion coefficient (20-200°C)

20 x 10-6

Electrical conductivity

27% IACS 

Electrical Resistivity

0.064 ohm mm2/m

 Fabrication Properties

Hot Working Temperature Range             

650-775°C

Hot Formability

Excellent

Cold Formability

Limited

Machinability rating
(free cutting brass = 100)

85%

Annealing Temp. Range

450-600°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:

Traditional uses for CZ120 / CW608N include Signs, nameplates, door furniture, window fittings, valve and valve parts, decorative metalwork, clock and instrument casings, gears, cams and fasteners.

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