In a world demanding higher standards for safety and environmental protection, choosing the right material is crucial. C69833 copper alloy, a high-performance lead-free brass, has emerged as a superior choice for industries that prioritize strength, safety, and sustainability.
As a professional supplier of high-quality industrial metals, Huaxiao Metal is here to provide all the information you need about C69833, and how it can bring significant value to your projects.

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What is C69833 Copper Alloy?
C69833 is an innovative, eco-friendly copper alloy specifically engineered to be lead-free. It belongs to the brass family but is distinguished by its excellent mechanical properties, including high strength and outstanding corrosion resistance. This makes it a safe and reliable alternative to traditional leaded brass, especially for applications that come into contact with drinking water or are subject to strict environmental regulations like RoHS and REACH.
C69833 Data Sheet
Chemical Composition of C69833 Coper:
Here is the chemical composition of C69833 lead-free brass alloy presented in a horizontal table format:
Element | Copper (Cu) | Zinc (Zn) | Silicon (Si) | Nickel (Ni) | Iron (Fe) | Lead (Pb) | Manganese (Mn) |
---|---|---|---|---|---|---|---|
Content | 74.0 – 77.0% | Balance | 2.0 – 3.5% | 0.3 – 1.3% | ≤ 0.10% | ≤ 0.09% | ≤ 1.0% |
Notes:
- Copper (Cu): Primary component providing base mechanical properties and electrical conductivity.
- Zinc (Zn): Balances the alloy, contributing to strength and corrosion resistance.
- Silicon (Si): Enhances mechanical properties and corrosion resistance.
- Nickel (Ni): Adds strength and hardness, improving corrosion resistance.
- Iron (Fe): Trace element, kept low to prevent embrittlement.
- Lead (Pb): Lead-free characteristic makes it suitable for environmental and potable water systems.
- Manganese (Mn): Increases strength and hardness.
Mechanical Properties of C69833
Property | Value |
---|---|
Tensile Strength | 400 – 650 MPa |
Yield Strength | 150 – 500 MPa |
Elongation | 10 – 35% |
Hardness | 80 – 100 HRB |
Modulus of Elasticity | Approximately 110 GPa |
Shear Strength | Approximately 230 MPa |
Notes:
- Tensile Strength: The maximum stress that the material can withstand while being stretched or pulled before breaking.
- Yield Strength: The stress at which a material begins to deform plastically.
- Elongation: The percentage increase in length before rupture, indicating the ductility of the material.
- Hardness: Measured on the Rockwell B scale (HRB), indicating the material’s resistance to indentation.
- Modulus of Elasticity: The ratio of stress to strain in the elastic deformation region, indicating the stiffness of the material.
- Shear Strength: The maximum stress that the material can withstand in shear before failing.
These properties make C69833 suitable for applications requiring a combination of strength, ductility, and corrosion resistance, such as in potable water systems, building hardware, and automotive components.
Physical Properties of C69833 Copper
Density: Approximately 8.44 g/cm³
Electrical Conductivity: Approximately 25% IACS (International Annealed Copper Standard)
Thermal Conductivity: Approximately 55 W/(m·K)
Melting Range: Around 905-940°C (1661-1724°F)
Coefficient of Thermal Expansion: Approximately 19.1 × 10^-6 /°C (20-300°C)
Application of C69833 Copper
Drinking water systems: such as faucets, valves, pipe fittings, etc., because their lead-free characteristics meet drinking water safety standards.
Building and construction materials: such as hardware, fasteners, door locks, etc.
Automotive industry: such as radiator components, fuel system components, etc.
General industry: such as pump components, gears, bearings, etc.

Features and Benefits:
Lead-free: Complies with environmental regulations such as RoHS and REACH, suitable for drinking water systems.
High strength: Has high mechanical strength and hardness.
Excellent corrosion resistance: Especially performs well in water and other corrosive environments.
Good processing performance: Suitable for hot and cold processing.
Environmental characteristics: Lead-free alloy, suitable for applications that need to comply with environmental regulations.
Heat Treatment and Processing:
Hot processing: C69833 can be processed by hot forging, hot rolling, etc.
Cold processing: It can be processed by cold rolling, cold drawing, etc., suitable for products that require high precision and a smooth surface.
Welding: A variety of welding processes can be performed, but care must be taken to control the heat input to prevent excessive oxidation.
Why Choose C69833 Lead-Free Brass?
Compared to traditional materials, C69833 offers a unique combination of advantages that meet modern manufacturing demands.
Superior Safety & Compliance: With zero lead content, C69833 eliminates the risk of lead leaching, making it the perfect material for drinking water systems, plumbing fittings, and food-grade equipment. It fully complies with international environmental standards.
Exceptional Strength: This alloy boasts impressive tensile and yield strength, allowing for the design of more durable and reliable components, even under high-stress conditions.
Excellent Corrosion Resistance: C69833 shows remarkable resistance to dezincification and general corrosion, ensuring a longer service life for your products, particularly in harsh environments.
Great Machinability: Despite being a high-strength material, C69833 maintains good machinability, allowing for efficient processing and manufacturing.
Ready to discuss your project needs? Click contact us to request a quote for our C69833 copper materials.
Why Choose Huaxiao Metal as Your C69833 Copper Supplier?

At Huaxiao Metal, we provide:
Stable and certified supply of C69833 alloy
Various product forms: rods, bars, plates, billets
Precision cutting and machining services
Fast international shipping
Competitive C69833 copper prices
Looking for trusted C69833 Copper Alloy Suppliers? Contact Huaxiao Metal today to get a free quote or samples.
FAQ
Is C69833 copper alloy expensive?
While the initial cost may be slightly higher than traditional leaded brass, its extended lifespan, compliance, and superior performance provide a better long-term return on investment.
How does C69833's machinability compare to other brasses?
Its machinability rating is very good for a lead-free alloy. While slightly different from high-leaded brasses, modern machining techniques can easily process C69833 efficiently.
What is your Minimum Order Quantity (MOQ) for C69833?
Our MOQ depends on the product form (sheet, rod, etc.) and current stock levels. Please contact our sales team for a specific quote and availability.
In Conclusion:
C69833 copper alloy is a high-performance material suitable for fields requiring high strength, corrosion resistance, and environmental protection characteristics.
Huaxiao Metal is more than just a supplier. We are your partner in success. We are committed to providing high-quality, certified C69833 copper materials backed by expert technical support.
Don’t compromise on safety or performance. Choose C69833 for your next project.