CZ121 (CW614N) is a free-machining brass consisting of a duplex phase structure with a 3% lead content. It is suited to high speed machining operations due its superior machinability, thread rolling and knurling characteristics. Particles of lead are finely dispersed throughout the microstructure, acting as both a lubricant and a chip breaker to give the alloy its free-machining characteristics.
CZ121’s (CW614N) machinability rating of 100 is the standard against which all copper alloys are rated. It offers good strength, is easily soldered or brazed and has good resistance to corrosion.
Related Specifications of CZ121 (CW614N)
- C38500
- CW614N
- BS2874
- 2.0401
- NF A51-105
- CuZn39Pb3
- CuZn40Pb3 (FR)
Nominal Composition of CZ121 (CW614N)
Cu 58%, Zn 39%, Pb 3%
Mechanical Properties of CZ121 (CW614N)
| Ultimate Tensile Strength (N/mm²) | Proof Stress (N/mm²) | Elongation (%) | Hardness (HB) |
|---|---|---|---|
| 350-425 | 15-25 |
Key Features of CZ121 (CW614N)
- Free machining
- Good corrosion resistance
- Good strength levels
Applications of CZ121 (CW614N)
General | A wide variety of machined components usually made on high speed automatic lathes including nuts, bolts, screws, bushings, bearings, pins and washers; plug pins, switch terminals, lock bodies, hinges, extruded sections, door treads, window frames and trim
Columbia Metals – a leading supplier of CZ121 (CW614N)
With decades of experience and a huge range of stock, Columbia Metals is an industry leader in the supply of CZ121 (CW614N) and other high quality specialist engineering alloys.
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