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Technical Specifications
Product Overview
260 Brass Sheet is a high-quality cartridge brass alloy containing approximately 70% copper and 30% zinc. This alpha brass offers excellent cold working properties, superior corrosion resistance, and exceptional formability, making it ideal for a wide range of industrial and decorative applications.
Key Features:
- Excellent cold forming and deep drawing capabilities
- Superior corrosion resistance in atmospheric conditions
- High electrical and thermal conductivity
- Excellent machinability and workability
- Attractive golden appearance for decorative applications
- Good strength-to-weight ratio
Manufacturing Process: Produced through hot rolling followed by cold rolling to achieve precise thickness and surface finish. Annealing process ensures optimal ductility and formability.
Applications: Cartridge cases, lamp fixtures, locks, hinges, ammunition components, musical instruments, decorative hardware, electrical components, radiator cores, heat exchangers, and architectural applications requiring both functionality and aesthetic appeal.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM B36 Requirement |
|---|---|---|---|---|
| Copper (Cu) | 68.5 | 71.5 | 70.0 | 68.5-71.5 |
| Zinc (Zn) | 28.5 | 31.5 | 30.0 | Remainder |
| Lead (Pb) | - | 0.07 | 0.03 | ≤ 0.07 |
| Iron (Fe) | - | 0.05 | 0.02 | ≤ 0.05 |
| Phosphorus (P) | - | 0.02 | 0.01 | ≤ 0.02 |
| Aluminum (Al) | - | 0.02 | 0.01 | ≤ 0.02 |
| Tin (Sn) | - | 0.02 | 0.01 | ≤ 0.02 |
| Nickel (Ni) | - | 0.30 | 0.15 | ≤ 0.30 |
| Others (Total) | - | 0.15 | 0.05 | ≤ 0.15 |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength (Annealed) | 300 MPa min | 315 MPa | ASTM E8 | Room Temp |
| Yield Strength (0.2%) | 75 MPa min | 105 MPa | ASTM E8 | Room Temp |
| Elongation | 68% min | 70% | ASTM E8 | Room Temp |
| Hardness (Brinell) | 55 HB max | 60 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | 25 HRB max | 30 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 110 GPa | ASTM E111 | Room Temp |
| Shear Strength | - | 200 MPa | ASTM B565 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 8.53 | g/cm3 | 20¡ãC | ASTM B311 |
| Melting Point | 900-940 | ¡ãC | - | DSC Analysis |
| Thermal Conductivity | 120 | W/m·K | 20¡ãC | ASTM E1461 |
| Specific Heat | 380 | J/kg·K | 0-100¡ãC | ASTM C351 |
| Linear Expansion | 20.3 | μm/m·K | 20-100¡ãC | ASTM E228 |
| Electrical Resistivity | 62 | nΩ·m | 20¡ãC | ASTM B193 |
| Magnetic Permeability | 1.0 | μ/μ₀ | Room Temp | Non-magnetic |
| Poisson's Ratio | 0.37 | - | Room Temp | ASTM E132 |
📏 Product Specifications
| Specification | Available Range | Standard Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Thickness | 0.1mm - 25mm | Various | Yes | ±0.05mm |
| Width | 100mm - 2000mm | 1000mm, 1250mm | Yes | ±2mm |
| Length | 500mm - 6000mm | 2000mm, 2500mm | Yes | ±5mm |
| Surface Finish | Mill, Polished, Brushed | Mill Finish | Yes | Ra ≤ 0.8μm |
| Temper Condition | Annealed, H01, H02, H04 | Annealed | Yes | ASTM standard |
| Edge Condition | Mill Edge, Slit Edge | Mill Edge | Both | ASTM B36 |
| Standards Compliance | ASTM B36, B103, B152 | B36 | Multiple | Full compliance |
| Flatness | ±2mm/m | Standard | Precision available | ASTM B36 |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Wooden Crates, Pallets | Wooden Crates | Custom | Export standard |
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Our Advantages in Processing 260 Brass Sheet
Superior Sheet Forming Process
Advanced rolling and forming techniques ensure consistent thickness and surface quality across the entire brass sheet, enabling precise dimensional control and excellent flatness for demanding architectural and decorative applications.
Precision Alloy Composition Control
Carefully controlled copper-zinc ratio during the manufacturing process guarantees optimal mechanical properties and the characteristic golden appearance, resulting in superior machinability and forming characteristics.
Enhanced Surface Treatment
Specialized finishing processes during sheet production create a smooth, uniform surface finish that improves corrosion resistance and provides an attractive aesthetic appearance suitable for decorative applications.
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