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CuZn39Pb3

CuZn39Pb3 / CW614N / C35800

Accelerate your production with the ultimate free-cutting alloy. CuZn39Pb3, supplied by Çorum Bronz, is engineered specifically for high-speed CNC and automatic machining. By delivering perfect chip control and exceptional dimensional stability, it allows for the manufacturing of complex components with unmatched efficiency. Turn your designs into reality with the world's most machine-friendly brass.

ISO: DIN EN 12164 / CW614N / 2.0401
CuZn39Pb3

01. Chemical Composition (%)

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Copper (Cu) % 57.0 - 59.0
Zinc (Zn) % Rest
Lead (Pb) % 2.5 - 3.5
Tin (Sn) % 0.3 max
Iron (Fe) % 0.3 max

02. Supply Forms

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hexagon Hexagon
transition_fade Custom Casting
radio_button_unchecked Hollow Bar / Pipe
sort Flat Bar / Plate
stroke_full Round Bar

03. Mechanical Properties

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Property Name Imperial (psi) Metric (MPa) Test Method
Tensile Strength (Rm) 360 - 500 N/mm²
Yield Strength (Rp0.2) 250 - 400 N/mm²
Hardness 90 - 150 HB

04. Technical Resources

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05. Compliance Standards

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BS CZ121 Pb3
ASTM - CDA C36000
DIN EN 12164 CW614N
DIN EN 12164 2.0401

Areas of Use

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High-Volume Turned Parts: Screws, bolts, nuts, and precision fasteners.
Plumbing & Sanitary: Valve components, faucet internals, and pipe fittings.
Electrical Industry: Connectors, terminals, and decorative switch components.
Automotive Engineering: Sensor housings, bushings, and fuel system connectors.
General Engineering: Gears, pinions, and intricate mechanical parts for clocks and instruments.

Notes

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CuZn39Pb3: Maximum Efficiency in Mass Production

In the world of precision engineering, time is the most valuable resource. CuZn39Pb3 (CW614N), manufactured to the highest quality standards by Çorum Bronz, is designed to save you time by maximizing your machining speeds and minimizing tool maintenance. As the most widely used brass alloy for "free-cutting," it is the backbone of the global fastener and small-parts industry.

Why CuZn39Pb3 is Indispensable

The secret to its performance lies in its microscopic structure. The lead (Pb) content is distributed throughout the brass matrix, acting as a chip-breaker and a natural lubricant for cutting tools. This means you can run your CNC machines at their maximum RPM without worrying about tool breakage or tangled "bird-nest" chips.

  • Lower Tooling Costs: Reduced friction extends the life of your expensive cutting inserts and drills.

  • Sustainability & Recycling: This alloy is highly recyclable, making it an environmentally responsible choice for large-scale manufacturing.

  • Excellent Secondary Operations: While optimized for cutting, it also responds well to plating, soldering, and polishing, allowing for a diverse range of final aesthetic finishes.

Çorum Bronz offers CuZn39Pb3 in various profiles—round, hexagonal, square, and custom shapes—all compliant with EN 12164 standards. Our commitment to metallurgical purity ensures that every bar you receive performs consistently, batch after batch.


Boost your machining performance with the precision of CuZn39Pb3. Contact Çorum Bronz today for global availability and competitive pricing.