What is C26000 metal?
C26000 is a classic copper-zinc alloy known as "70/30 brass" or "casing brass," with a copper content of approximately 70% and a zinc content of approximately 30%, exhibiting a single-phase α-structure. This alloy excels in cold working, is easy to stamp, draw, and form, while maintaining good mechanical strength and corrosion resistance, and possessing electrical and thermal conductivity close to that of pure copper. Due to its golden appearance and balanced material properties, C26000 is widely used in the manufacture of electronic connectors, heat sinks, decorative hardware, musical instrument components, and ammunition casings, making it one of the most commonly used and cost-effective general-purpose brass materials in industry. In various national standards systems, it corresponds to the European standard EN CW508L, the Japanese standard JIS C2600, and the Chinese standard H68, and is a globally recognized basic copper alloy grade.
What is the difference between C260 and C26000?
There is no practical difference in the material itself.
C26000 is the full Unified Numbering System (UNS) designation.
C260 is a common shorthand or truncated form used in industry (e.g., in older SAE standards like SAE CA260).
When sourcing material, specifying C26000 is the most precise and universally recognized way to ensure you get the correct 70/30 brass alloy.
Chemical Composition
| Element | Content (%) |
|---|---|
| Cu | 68.5-71.5 |
| Fe | 0.050 |
| Pb | 0.070 |
| Other | 0.15 |
| Zn | 28.5 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Melting point-liquidus | 954°C | 1750°F |
| Melting point-solidus | 916°C | 1680°F |
| Density (@20°C/68°F) | 8.53 gm/cm3 | 0.308 lb/in3 |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength (depending on temper) | 303-896 MPa | 44-130 ksi |
| Yield strength (depending on temper) | 76-448 MPa | 11-65 ksi |
| Elongation (75mm/3in) | 66% | 66% |
| Poisson's ratio | 0.34 | 0.34 |
| Elastic modulus | 117 GP | 16969 ksi |
Typical uses
Architecture: Grillwork
Automotive: Electrical connectors, heater cores, odometer contacts, radiator cores, radiator tanks, radiator tube, tanks, thermostats
Builders hardware: Decorative hardware, door knobs, finish hardware, hinges, kick plates, locks, push plates
Consumer: Bird cages, buttons, chain links, coinage, costume jewelry, etched articles, fireplace screens, lamps, pen/pencil inserts and clips, planters, shells (electrical sockets), snaps, syringe parts, watch parts
Electrical: Flashlight shells, lamp fixtures, reflectors, screw shells, terminal connectors
Fasteners: Eyelets, fasteners, grommets, pins, rivets, screws
Industrial: Air pressure conveyer systems, bead chain, chain, heat exchangers, liners, power cylinders, pumps, sound-proofing equipment, springs, tubing for instruments and machines, wire screens
Specifications
| Bar | ASTM B36, ASTM B19, SAE J463, SAE J461 |
| Disk | ASTM B19 |
| Plate | AMS 4507, AMS 4505, ASTM B19, ASTM B36 |
| Rod | SAE J463, SAE J461 |
| Sheet | AMS 4507, AMS 5408, AMS 4505, ASTM B19, ASTM B36, SAE J463, SAE J461 |
| Strip | AMS 4507, AMS 4505, ASTM B36, ASTM B569, ASTM B19, ASTM B888, SAE J463, SAE J461 |
| Tube, Seamless | ASTM B 135, FEDERAL WW-T-791, MIL-T-20219, SAE J463, SAE J461 |
| Tube Welded | ASTM B587 |
| Wire | ASTM B134, SAE J463, SAE J461 |
| Other | CZ106, C26000 |
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.
