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Technical Specifications
Product Overview
360 Brass Flat Bar is a free-machining brass alloy containing lead for enhanced machinability. This copper-zinc alloy offers excellent mechanical properties combined with superior machining characteristics, making it the industry standard for high-speed machining operations.
Key Features:
- Excellent machinability with 100% rating (industry standard)
- Good corrosion resistance in atmospheric conditions
- High strength and ductility combination
- Excellent hot and cold working properties
- Good electrical and thermal conductivity
Manufacturing Process: Hot rolled and cold drawn to precise dimensions, with optional heat treatment for specific temper conditions. Quality controlled through continuous monitoring of chemical composition and mechanical properties.
Applications: Precision machined components, automotive parts, electrical connectors, plumbing fittings, decorative hardware, clock and watch components, musical instruments, and general engineering applications requiring excellent machinability.
🧪 Chemical Composition
| Element | Min % | Max % | Typical % | ASTM B16 Requirement |
|---|---|---|---|---|
| Copper (Cu) | 60.0 | 63.0 | 61.5 | 60.0-63.0 |
| Zinc (Zn) | 35.5 | 38.5 | 36.8 | Remainder |
| Lead (Pb) | 2.5 | 3.7 | 3.0 | 2.5-3.7 |
| Iron (Fe) | - | 0.35 | 0.15 | ≤ 0.35 |
| Aluminum (Al) | - | 0.05 | 0.02 | ≤ 0.05 |
| Tin (Sn) | - | 0.05 | 0.02 | ≤ 0.05 |
| Nickel (Ni) | - | 0.30 | 0.10 | ≤ 0.30 |
| Other Elements | - | 0.50 | 0.25 | ≤ 0.50 |
⚙️ Mechanical Properties
| Property | ASTM Requirement | Typical Value | Test Method | Temperature |
|---|---|---|---|---|
| Tensile Strength | 380 MPa min | 415 MPa | ASTM B557 | Room Temp |
| Yield Strength (0.2%) | 240 MPa min | 275 MPa | ASTM B557 | Room Temp |
| Elongation | 15% min | 25% | ASTM B557 | Room Temp |
| Hardness (Brinell) | 110 HB min | 125 HB | ASTM E10 | Room Temp |
| Hardness (Rockwell B) | 75 HRB min | 82 HRB | ASTM E18 | Room Temp |
| Modulus of Elasticity | - | 103 GPa | ASTM E111 | Room Temp |
| Shear Strength | - | 275 MPa | ASTM B565 | Room Temp |
🔬 Physical Properties
| Property | Value | Unit | Temperature | Test Standard |
|---|---|---|---|---|
| Density | 8.50 | g/cm3 | 20¡ãC | ASTM B311 |
| Melting Point | 885-890 | ¡ãC | - | DSC Analysis |
| Thermal Conductivity | 115 | W/m·K | 20¡ãC | ASTM E1461 |
| Specific Heat | 385 | J/kg·K | 20¡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 | 1.00 | μ/μ₀ | Room Temp | Non-magnetic |
| Machinability Rating | 100 | % | - | Industry Standard |
📏 Product Specifications
| Specification | Available Range | Standard Size | Custom Available | Tolerance |
|---|---|---|---|---|
| Thickness | 3mm - 50mm | 6mm, 10mm, 12mm | Yes | ±0.1mm |
| Width | 10mm - 200mm | 25mm, 50mm, 100mm | Yes | ±0.5mm |
| Length | 1m - 6m | 3m | Yes | +25mm/-0mm |
| Surface Finish | Mill, Polished, Brushed | Mill Finish | Yes | Ra ≤ 1.6μm |
| Edge Condition | Square, Rounded, Chamfered | Square | Yes | ±0.2mm |
| Straightness | - | Standard | Precision | 2mm/m max |
| Standards Compliance | ASTM B16, B124, B455 | ASTM B16 | Multiple | Full compliance |
| Temper Condition | H02, H04, H06, H08 | H02 | Yes | Standard |
| Test Certificate | Mill TC, EN 10204 3.1 | Mill TC | Yes | Standard |
| Packaging | Bundles, Wooden Crates | Bundles | Custom | Export standard |
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Our Advantages in Processing Barra Plana de Latão 360
Superior Machinability Properties
360 brass flat bars offer exceptional machinability with clean cuts and precise finishes, allowing for high-speed machining operations with minimal tool wear. This results in efficient production cycles and reduced manufacturing costs.
Flat Profile Precision
The flat bar configuration ensures consistent dimensional accuracy and flatness throughout the material, enabling precise fabrication and assembly processes while maintaining tight tolerances in manufacturing applications.
Easy Forming & Shaping
The material's balanced composition allows for excellent formability and workability during manufacturing, making it ideal for bending, shaping, and secondary operations without compromising structural integrity or surface quality.
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