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C36000 Lead Brass - Premium Machinable Alloy from China Suppliers & Factory for Precision Components
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
What is the copper and lead content in this UNS standard brass?
This brass alloy contains a copper (Cu) content range of 60.0% to 63.0% and a lead (Pb) content range of 2.5% to 3.7%.
What are the key physical properties of this material?
It features a density of 8.50 g/cm³, a melting point of 885–900 ℃, thermal conductivity of 115 W/(m·K), electrical conductivity of 26% IACS (annealed state), and an elastic modulus of 105–115 GPa.
Why is this alloy ideal for high-speed automatic lathes and CNC machining?
Thanks to its excellent machinability and superior chip removal properties, the material does not get stuck on the cutting blade, ensuring smooth and efficient high-speed operations.
Can this material be used for electrical and heat dissipation components?
Yes, it possesses relatively good electrical conductivity (26% IACS) and thermal conductivity (115 W/(m·K)), making it highly suitable for connector terminals, connectors, and heat sinks.
What automotive and water supply parts can be manufactured with this alloy?
In the automotive industry, it is used for fuel system joints, fuel injector housings, nuts, and bolts. For water supply, it is commonly used to make valve bodies, valve cores, valve stems, pipe joints, and faucet accessories.