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C36000 Lead Brass Alloy - Top Choice from China Suppliers and 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 standard chemical composition of this brass alloy?
According to UNS standards, this alloy consists of 60.0% to 63.0% Copper (Cu) and 2.5% to 3.7% Lead (Pb), with Zinc (Zn) as the balance. The maximum limit for Iron (Fe) is 0.35%, and total impurities are kept under 0.5%.
Why is this material preferred for high-speed CNC machining?
This alloy features outstanding chip removal capabilities, preventing chips from sticking to the blades. This ensures smooth operations and high efficiency on high-speed automatic lathes and CNC machines.
What are the key physical properties of this brass?
It has a density of 8.50 g/cm³, a melting point range of 885–900 ℃, a thermal conductivity of 115 W/(m·K), an electrical conductivity of 26% IACS (annealed state), and an elastic modulus of 105–115 GPa.
Can this material be cold worked or stamped?
Yes, it offers good cold working performance, making it suitable for slight bending, stamping, and other cold processing requirements, alongside its excellent hot processing capabilities.
What are the common applications for this brass alloy?
It is widely used in automotive parts (joints, injector housings), electrical components (terminals, connectors), precision instruments (gears, watch movements), consumer hardware, and plumbing systems (valves, faucets).