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Brass Cz121
Material Type
Metal
Material Name
Brass Cz121
Alternative Names
C38500 | 2.0401 | CuZn39Pb3 | CW614N
Process Compatibility
CNC Milling, CNC Turning
introduction
Brass Cz121 in CNC Machining
CZ121 is also known as CW614N in the European standard. It is a free-machining leaded brass alloy.
It contains a small amount of lead, which improves its machinability. Meaning, CZ121 is easy to cut and shape during machining processes. Brass CZ121 machines well at higher speeds, so we start with higher cutting speeds and adjust as needed. The specific speeds and feeds depend on the CNC machine, tooling, and other factors. Coolant is generally used during brass machining to dissipate heat and improve tool life. However, in some cases, dry machining may be suitable. CZ121 has a machinability rating of 100%, setting the standard for all other copper alloys.
This brass variant is extensively used in various industries due to its excellence in high-speed machining and crafting intricate parts. It also has favorable qualities such as good strength, easy soldering/brazing, and high corrosion resistance. It stands out as the preferred choice for a wide range of brass components. We provide CZ121 brass in different shapes like round bars, hollow bars/tubes, hexagon bars, and square bars depending on the application's requirements.
Properties
Properties Table of Brass Cz121
| MECHANICAL PROPERTIES | |
|---|---|
| Ultimate Tensile Strength | 360-370 MPa |
| Yield Strength | 115-130 MPa |
| Young's Modulus(Elasticity) | 97-100 GPa |
| Elongation at Break | 17-20% |
| Physical Property | |
| Corrosion Resistance | Fair to Excellent |
| Thermal Property | |
| Thermal Expansion Coefficient | 20-21 x 10^-6/°C |
TECHNOLOGY OVERVIEW
Basic Knowledge of Brass Cz121
What is Brass Cz121?
CZ121 is a designation for a type of brass alloy. Brass is a metal alloy made primarily of copper and zinc.
The composition of CZ121 typically includes approximately 57% copper (Cu), 3% lead (Pb), and the rest is zinc (Zn), with trace amounts of other elements. The addition of lead improves the machinability of the alloy, that’s why it is easier to cut, shape, and form. However, it's important to note that the use of lead in certain applications may be restricted due to environmental and health concerns.
Advantages of Brass Cz121
Corrosion resistance
High machinability
Good strength and ductility
Excellent thermal conductivity
Aesthetic appeal
Low friction coefficient
Easy to solder and braze
Applications of Brass Cz121
Electrical connectors
Plumbing fittings
Automotive components
Valve bodies
Fasteners and screws
Decorative hardware
Marine hardware
FAQ
Machining Brass Cz121 Buying FAQ
Brass Cz121 is generally considered weldable using suitable welding processes such as brazing, soldering, or gas welding. However, it's important to note that welding brass requires careful consideration of the specific alloy and proper techniques to avoid degradation of its properties.
Brass Cz121 has good strength characteristics. Its strength depends on heat treatment, alloy composition, and the specific mechanical properties required for a given application.
Brass Cz121 has good corrosion resistance, especially compared to many other metals. It forms a protective oxide layer on its surface that helps prevent corrosion. However, its corrosion resistance can be influenced by environmental factors, the specific application, and the presence of certain chemicals.
Other Materials
Stainless Steel 316
Stainless Steel 316, also known as marine-grade stainless steel, is a popular material in CNC machining due to its good mechanical properties
More info about Stainless Steel 316
Aluminum 6060
Alloy 6060 offers good strength, relatively good corrosion resistance and is suitable for decorative anodizing.
More info about Aluminum 6060
Bronze 544
Bronze 544, also known as "B-2" bronze or C54400 Phosphor Bronze, is a great choice for bearings due to its high machinability and wear resistance.
More info about Bronze 544
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