CW501L / CZ101 Gilding Brass is an alpha brass consisting of approximately 90% copper and 10% zinc. Also known as Gilding Metal the CW501L / CZ101 is primarily offered as a sheet grade due to its excellent cold working properties.
The make-up of CW501L / CZ101 means it is not generally susceptible to dezincification or stress corrosion and due to its formability and its attractive rich golden colour it is widely used for architectural and decorative applications. It is also readily enamelled, soldered and brazed.
Related Specifications
| CW501L | BS2870: CZ101 |
| C22000 | CuZn10 |
Chemical Composition
| Copper | 89.0-91.0% |
| Lead | 0.05% max |
| Iron | 0.10% max |
| Zinc | Rem |
| Others | 0.40% max |
Key Features
Typical Physical Properties
| Melting Point | 1045°C |
| Density | 8.80 g/cm³ |
| Specific Heat | 376 J/Kg°K |
| Thermal conductivity (RT) | 188 W/m°K |
| Thermal expansion coefficient (20-200°C) | 18 x 10-6 / °C |
| Electrical conductivity | 44 % IACS |
| Electrical Resistivity | 0.039 ohm mm2/m |
Fabrication Properties
| Hot Working Temperature Range | 750-900°C |
| Hot Formability | Good |
| Cold Formability | Excellent |
| Cold Reduction Between Anneals | 90% |
| Machinability rating
(free cutting brass = 100) |
25 % |
| Annealing Temp. Range | 425-600°C |
| Stress Relieving Temp. Range | 200-300°C |
Joining Methods
| Soldering | Excellent |
| Brazing | Excellent |
| Oxy-acetylene welding | Good |
| Gas-shielded arc welding | Good |
| Resistance welding: Spot and Seam | Not Recommended |
| Butt | Good |
Typical Applications
CW501L / CZ101 is most commonly utilized for architectural applications including decorative metalwork, showcase and window fittings, roofing panels, grillwork, weather-strip, cold-formed angles and channels, ornamental pressing and trim. It is also used for decorative items and jewelry including cosmetic compacts, cases, costume jewelry, emblems, medallions and other items requiring vitreous enamelling or for hardware such as, rivets, screws, wire gauzes and slide / zip fasteners. CW505L CZ106 Cartridge Brass
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