CZ120 / CW608N Engraving Brass Rolled 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
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 DOWEDO 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. CZ115 / CW722R Extruded High Tensile Brass
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