360 brass is one of the most popular copper alloys available today. The 60-40 mixture of copper and zinc found in 360 brass creates an alloy with high corrosion resistance, impressive strength, and high durability. 360 brass's 3% lead composition also helps to improve the machinability and workability of the alloy.
What are the Properties of 360 Brass?
360 brass's unique chemical composition provides it with numerous properties that make it desirable for a number of different applications. To help explain what makes 360 brass such a useful alloy, we'll explore its chemical composition, its mechanical information, and other key properties.
360 Brass Chemical Composition
The 360 brass alloy features the following chemical composition:
Copper: 61.5%
Zinc: 35.5%
Lead: 3.0%
Iron: 0.35%
This chemical composition yields several desirable properties. To start, 360 brass is incredibly resistant to corrosion due to the high copper and zinc composition. 360 brass also has an ultimate tensile strength of up to 68,000 psi and a yield tensile strength of up to 45,000 psi, enabling the material to maintain its structural integrity even when used in high-stress applications. Despite its impressive strength, 360 brass remains quite malleable, featuring a machinability rating of 100. This makes it the most machinable of all copper alloys.
Mechanical Information
Density: .307 lb/in3
Ultimate Tensile Strength: 49,000 – 68,000 psi
Yield Tensile Strength: 18,000 – 45,000 psi
Modulus of Elasticity: 14,100 ksi
Shear Modulus: 5,370 ksi
Shear Strength: 30,500 – 45,000 psi
Melting Point: 1,630°F – 1,650°F
Electrical Conductivity: 26% IACS
Rockwell Hardness: B78
Elongation at Break Percentage: 53%
Poisson's Ratio: 0.31
Machinability Percentage: 100%
Other Common Names for 360 Brass
In addition to 360 brass, the alloy is also known by common trade names such as CDA 360, UNS 36000, C360, ISO CuZn36Pb3, and free-cutting brass.
Applications of 360 Brass
Thanks to its impressive strength, corrosion resistance, and machinability, 360 brass is a popular alloy for a broad range of industries and applications, including:
Plumbing fixtures
Screw machine parts
Nuts
Bolts
Pump shafts
Couplings
Bushings
Connecters
Fittings
Electrical components
Industrial hardware components
Valve stems
Circuit board relays
Our product range
| Product Category | Key Grades / Alloys | Common ASTM Standards (Examples) | |
|---|---|---|---|
| Copper Tubes / Pipes | C10100 (OFE), C10200 (OF), C11000 (ETP), C12000 (DLP), C12200 (DHP), C19200, C23000 (Red Brass) | ASTM B68 (Seamless Copper Tube), ASTM B75 (Seamless Copper Tube), ASTM B88 (Water Tube), ASTM B280 (ACR/Refrigeration Tube) |
|
| Copper Sheets / Plates | C10100, C10200, C11000, C12200, C26000 (Cartridge Brass), C26800, C70600 (90-10 CuNi), C71500 (70-30 CuNi) |
ASTM B152 (Copper Sheet/Strip), ASTM B248 (Copper Plate) |
|
| Copper Rods / Bars | C10100, C11000, C14500 (Tellurium Copper), C14700 (Sulfur Copper), C36000 (Free-Cutting Brass), C46400 (Naval Brass) |
ASTM B133 (Copper Rod/Bar), ASTM B16 (Free-Cutting Brass Rod) |
|
| Copper Wires | C10100, C10200, C11000 | ASTM B1 (Hard-Drawn Copper Wire), ASTM B2 (Medium-Hard Copper Wire), ASTM B3 (Soft/Annealed Copper Wire) |
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| Copper Foils | C10100, C10200, C11000 | ASTM B103 (Phosphor Bronze Strip/Foil),* ASTM B152 (Copper Strip/Foil), IPC-4562 (PCB Foil Standards) |
Our factory
We are a leading manufacturer specializing in a comprehensive range of precision copper products, including tubes, sheets, rods, wires, and foils. Our advanced manufacturing facility operates with a full suite of modern equipment-from hot rolling mills and extrusion presses to precision drawing machines and automated finishing lines-enabling strict control over every production stage.
Committed to excellence, we adhere to major international standards such as ASTM, EN, JIS, and GB, supported by a rigorous quality management system. Our products serve diverse industries, including HVAC&R, electrical and electronics, automotive, construction, and industrial engineering. With strong in-house technical expertise, flexible customization capabilities, and a reliable supply chain, we deliver high-performance, cost-effective copper solutions to partners worldwide.
copper product packaging
To ensure every copper product you order receives reliable protection throughout transportation and storage, we provide systematic professional packaging solutions based on product type and shipping requirements. These include export-standard wooden crates, moisture-proof reinforced cartons, steel-structure pallet bundling, stretch film protection, and specialized end caps for tubing. Each batch of products undergoes cleaning and anti-rust treatment, followed by layered isolation wrapping using materials such as anti-rust paper, polyethylene foam, and bubble wrap to effectively prevent scratches and impacts. We also offer nitrogen-filled modified atmosphere packaging upon customer request, where inert nitrogen is injected into a sealed environment to significantly inhibit oxidation and moisture erosion. This is particularly suitable for copper materials with high surface quality requirements, long-term storage, or special environmental transportation, ensuring the products maintain their factory-level finish and performance upon arrival. All packaging is clearly labeled and accompanied by complete shipping documentation to ensure full traceability and ease of handling throughout the logistics process.
