What is C26000 metal?
Cartridge brass C26000, also known as 70/30 brass, is a copper-zinc alloy renowned for its excellent ductility, machinability, and corrosion resistance. It is widely used in ammunition, plumbing, and architectural hardware.
Chemical Composition
| Element | Min | Max |
|---|---|---|
| Copper | 68.5% | 71.5% |
| Iron | -- | 0.05% |
| Lead | -- | 0.07% |
| Zinc | 28.5% | 31.5% |
| Residuals | -- | 0.15% |
Table of Cartridge Brass C26000 Properties
| Physical Properties |
Metric |
|---|---|
| Density | 8530 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 300 - 890 MPa |
| Tensile Strength (Yield) | 70 - 450 MPa |
| Shear Strength | 220 - 390 MPa |
| Young's Modulus (E) | 110 GPa |
| Shear Modulus (G) | 40 GPa |
| Elongation at Break | 66% |
| Poisson's Ratio (ν) | 0.34 |
| Thermal Properties | Metric |
| Melting Point | 915 - 955 °C |
| Thermal Conductivity | 120 W/m·K |
| Specific Heat Capacity (Cp) | 390 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 2.0×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 1.6×107 S/m |
Advantages & Disadvantages of Cartridge Brass C26000
| Advantages | Disadvantages |
|---|---|
| Good strength | Limited suitability for some corrosive environments |
| High ductility | High cost |
| Electrical conductivity | |
| Corrosion resistance | |
| Excellent machinability |
Applications of Cartridge Brass C26000
Ammunition Casings: Primarily used for manufacturing ammunition casings due to its strength, ductility, and corrosion resistance. It can withstand the high pressures generated during firing, ensuring the integrity and safety of the ammunition.
Plumbing Fittings: The excellent machinability and corrosion resistance make it suitable for plumbing fittings, including valves, couplings, connectors, and fittings. It is used in both residential and commercial plumbing systems.
Architectural Hardware: Its attractive yellow color and corrosion resistance make it a popular choice for architectural hardware. Common applications include door handles, hinges, knobs, decorative accents, and other fittings where aesthetics and durability are important.
Electrical Connectors and Terminals: The good electrical conductivity ensures efficient electrical transfer and reliable connections in various applications, making it ideal for electrical connectors, terminals, and contact elements.
Automotive Applications: Used in components such as radiator cores, fuel tanks, heat exchangers, and connectors due to its corrosion resistance, formability, and thermal conductivity.
Marine Applications: The corrosion resistance makes it suitable for marine environments. Common uses include marine fittings, valves, connectors, and other components subject to exposure to saltwater.
Our factory
Our factory specializes in the production and manufacturing of high-quality copper products. We operate a comprehensive, end-to-end production line equipped with advanced continuous casting and rolling mills, precision drawing machines, high-speed rolling mills, and automated heat treatment systems. We professionally produce a wide range of copper tubes, plates, bars, wires, and foils. A strict quality inspection system is implemented throughout the entire process, from raw material intake to finished product delivery. Supported by precision instruments such as spectrometers, metallographic microscopes, tensile testing machines, eddy current flaw detectors, and laser dimension gauges, we ensure that our products fully comply with international and domestic standards-including ASTM, EN, JIS, and GB-in terms of chemical composition, mechanical properties, dimensional accuracy, and surface quality. We are committed to providing global customers with stable, reliable, and fully-specified copper material solutions.
copper product packaging
Our products are packaged using professional, customized industrial packaging solutions to ensure they remain intact during long-distance transportation and multiple handlings. For long products such as copper tubes and bars, we use sturdy waterproof wooden crates or metal-frame boxes for secure fixing and protection. Copper plates and foils are individually wrapped with anti-rust paper, then packed into steel-edged boxes or on pallets with reinforced hard corners. Copper wires are wound with moisture-proof film and neatly coiled onto custom-designed reels or placed in wooden cases. All packaging is clearly marked according to customer requirements with shipping marks, specifications, batch numbers, and handling symbols. Desiccants can also be placed inside the packages when needed, providing complete protection against rust, moisture, and impact throughout the entire journey from production to the destination port.
