CZ121 / CW614N - Free Machining Brass

Key Characteristics:

• Free Machining: CZ121 is renowned for its excellent free machining properties, allowing for efficient production processes.
• Corrosion Resistance: It exhibits good corrosion resistance, making it suitable for various applications.
• Ductility: CZ121 maintains good ductility, contributing to its versatility in different manufacturing processes.

Applications:

• Fasteners and Screw Machine Parts: CZ121 is commonly used for the production of fasteners and screw machine parts due to its excellent machinability.
• Plumbing Fittings: Its corrosion resistance makes CZ121 suitable for plumbing fittings and components.
• Automotive Components: CZ121 brass finds applications in the automotive industry, including the production of components in engines and transmissions.

Holme Dodsworth offers CZ121 brass in various forms, including Round Bar, Hollow Bar/Tube, Hexagon Bar and Square Bar, catering to the specific needs of different industries.

CW614N / CZ121 is the standard European grade of free-machining brass consisting of a duplex structure and a 3% lead addition. The particles of lead are finely dispersed throughout the microstructure and acts as both a lubricant and a chip breaker to give the alloy its free machining characteristics.

The machinability rating of 100% for CW614N / CZ121 is the standard against which all other copper alloys are rated. It is the most widely used of all the brasses due to its suitability for high speed machining operations and also the manufacture of intricate parts. Its combination of machinability, thread rolling and knurling characteristics, combined with its good strength, an ease of soldering / brazing and a high resistance to corrosion makes it the ideal choice for many brass components throughout industry.

Related Specifications

Nominal Composition

Key Features

• The Highest Machinability of any Copper Alloy
• Excellent Hot formability
• Good Corrosion Resistance

Typical Physical Properties

 Fabrication Properties

 Joining Methods

 Typical Uses:

Traditional uses for CZ121 / CW614N include a wide variety of machined components made on high speed lathes including screws, bolts, nuts, bushing, pins, washers, butts, hinges and also locks and components for watches.

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.