CZ112 / CW712R - Naval Brass
Key Characteristics:
- High Strength: CZ112 is known for its high strength, making it suitable for applications requiring robust materials.
- Corrosion Resistance: One of the standout features of CZ112 is its exceptional resistance to corrosion, especially in marine conditions. This makes it a preferred choice for components used in shipbuilding and offshore structures.
- Machinability: CZ112 offers good machinability, facilitating the production of complex and precise components.
Applications:
- Marine Hardware: Given its corrosion resistance in seawater, CZ112 is commonly used in the production of marine components such as ship propellers, valves, and fasteners.
- Fasteners and Fittings: Its high strength makes CZ112 suitable for the production of fasteners and fittings in engineering and construction.
- Architectural Applications: The visual appeal of CZ112 makes it a choice for architectural fittings and decorative elements.
Holme Dodsworth offers CZ112 brass in various forms, including Round Bar, Hollow Bar, Hexagon Bar, Plate and Square Bar, catering to the specific needs of different industries.
CW712R / CZ112 is commonly known as Naval Brass due to its improved corrosion resistance in marine environments. The general composition is 60% copper, 39% zinc with an important 1% tin addition that gives an improved corrosion resistance together with a harder and stronger duplex structure to improve the mechanical properties.
The increase in corrosion resistance enables the material to be used in both seawater and other mildly aggressive media, it also offers better strength levels than many of the basic alpha brasses combined with an excellent hot formability.
Related Specifications
|
CZ112 |
CW712R |
|
C46400 |
CuZn36Sn1 |
Chemical Composition
|
Copper |
59.5-63.5% |
|
Tin |
1.0-1.5% |
|
Lead |
0.2-0.6% |
|
Zinc |
Rem |
Key Features
- Very good corrosion resistance in marine environments
- Excellent hot formability
- Good Strength
- Retention of properties at cryogenic temperatures
Typical Physical Properties
|
Melting Point |
915°C |
|
Density |
8.4 g/cm³ |
|
Specific Heat |
380 J/Kg°K |
|
Thermal conductivity (RT) |
121 W/m°K |
|
Thermal expansion coefficient (20-200°C) |
20 x 10-6 |
|
Electrical conductivity |
26% IACS |
|
Electrical Resistivity |
0.066 ohm mm2/m |
Fabrication Properties
| Hot Working Temperature Range |
650-750°C |
|
Hot Formability |
Excellent |
|
Cold Formability |
Fair |
|
Machinability rating (free cutting brass = 100) |
40% |
|
Annealing Temp. Range |
450-600°C |
|
Stress Relieving Temp. Range |
225-325°C |
Joining Methods
| Soldering |
Excellent |
|
Brazing |
Good |
|
Oxy-acetylene welding |
Good |
|
Gas-shielded arc welding |
Fair |
|
Resistance welding: Spot and Seam |
Fair |
|
Butt |
Good |
Typical Uses:
As its name suggests the Naval Brass CW712R / CZ112 is generally utilised in marine components including, heat exchanger tube plates, bolts, nuts, rivets, marine hardware, and fasteners for corrosion resistant service. Other uses include high strength cold-headed products and fasteners and general machined components.
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.