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C36000 Lead Brass Alloy - Top Choice for Precision Components | China Suppliers & Factory
1. Core chemical composition (UNS standard)
| Element | Content Range (%) |
| Copper (Cu) | 60.0–63.0 |
| Lead (Pb) | 2.5–3.7 |
| Zinc (Zn) | Excess |
| Iron (Fe) | ≤0.35 |
| Total impurity content | ≤0.5 |
2. Physical properties (typical values)
| Performance indicators | Typical values |
| Density | 8.50 g/cm³ |
| Melting point | 885–900 ℃ |
| Thermal conductivity | 115 W/(m·K) |
| Electrical conductivity | 26 % IACS (annealed state) |
| Elastic modulus | 105–115 GPa |
3. Main Characteristics
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Excellent machinability, superior to ordinary brass
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Excellent chip removal, does not get stuck on the blade, suitable for high-speed automatic lathes and CNC
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Good cold working performance, capable of slight bending and stamping
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Both electrical conductivity and heat conductivity are relatively good, suitable for terminals or heat dissipation components
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High yield rate, easy for both cold and hot processing
4. Application Fields
Automotive Industry
Fuel system joints, fuel injector housings, nuts and bolts
Electrical and Electronic
Connector terminals, connectors, heat sinks, terminal blocks
Precision Machinery and Instruments
Gears, instrument joints, watch movement parts
Hardware and Consumer Electronics
Small hardware components, electrical enclosures
Water Supply and Valves
Valve bodies, valve cores, valve stems, pipe joints, faucet accessories
Frequently Asked Questions (FAQ)
Q: What is the copper content range in this UNS standard brass?
The copper (Cu) content ranges between 60.0% and 63.0%, which provides a balanced combination of strength, ductility, and corrosion resistance.
Q: Why does this brass alloy have such excellent machinability?
The alloy contains 2.5–3.7% lead (Pb), which acts as a microscopic lubricant and chip breaker. This ensures excellent chip removal and prevents material from sticking to the blades during high-speed automatic lathe and CNC operations.
Q: Can this material be used for electrical components?
Yes. With an electrical conductivity of 26% IACS (in its annealed state) and good thermal conductivity of 115 W/(m·K), it is highly suitable for connector terminals, heat sinks, and terminal blocks.
Q: Is this brass alloy suitable for cold forming or bending?
Yes, it features good cold working performance, making it capable of undergoing slight bending, stamping, and other typical cold or hot forming processes.
Q: What are the typical applications in the automotive and plumbing sectors?
In the automotive industry, it is commonly used for fuel system joints and fuel injector housings. In the plumbing sector, it is widely utilized for valve bodies, valve cores, valve stems, pipe joints, and faucet accessories.