CZ109 (CW509L)
CZ109 (CW509L) is a lead-free form of alpha-beta brass containing approximately 60% copper, 40% zinc and a trace of iron. It is a general purpose alloy that offers excellent hot working properties for corrosion-resistant machine parts.
Also known as Muntz metal, the alloy is named after George Fredrick Muntz, who commercialised it following a patent of 1832. Notably, CZ109 (CW509L) was used on the hull of the Cutty Sark.
Related Specifications of CZ109 (CW509L)
- C28000
- CW509L
- BS2874
- 2.0360
- NF A51-104
- CuZn40
Nominal Composition of CZ109 (CW509L)
Cu 60%, Zn 40%
Mechanical Properties of CZ109 (CW509L)
| Ultimate Tensile Strength (N/mm²) |
Proof Stress (N/mm²) |
Elongation (%) |
Hardness (HB) |
| 340 |
|
25 |
|
Key Features of CZ109 (CW509L)
- Excellent hot formability
- High ductility
Applications of CZ109 (CW509L)
Offshore & marine | Condenser and heat exchanger tubeplates
Chemical processing | Condenser and heat exchanger tubeplates
Decorative & architectural | Extruded sections including angles, channels and trim, heavy gauge panels and trim; hot stamped components, forgings, "upset" products requiring limited cold bending and hot-headed fasteners