2011 CF Aluminum Bar
2011 CF aluminum bar is an aluminum alloy primarily composed of easy-to-machine elements (such as lead and bismuth), with the main features of excellent machinability and relatively low friction coefficient. Its chips are fine and break easily, allowing it to be processed into extremely tight tolerances while providing a smooth and bright surface. This not only increases production efficiency but also extends the tool life during machining. Its electrical conductivity is 38% that of copper, which, although lower than copper, is sufficient for most applications.
Common Specifications of 2011 CF Aluminum Bar
| Specification | Size Range |
| Diameter | 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1 1/4", 1 1/2", 2", 3" |
| Length | 12', 10', 8', 6' |
| Surface Treatment | No surface treatment, anodized, machined surface (smooth, rough) |
| Special Specifications | Custom sizes and lengths available according to customer requirements |
2011 Cold Finish Aluminum Bar Mechanical Properties
- Strength and Formability: 2011 aluminum alloy has good strength while maintaining excellent formability. During processing, it exhibits low friction and stable surface effects, ensuring high-quality finished products.
- Machinability: The machinability of 2011 CF aluminum bar is outstanding, almost comparable to easy-to-machine brass, making it widely used in automatic machines, milling machines, lathes, and other equipment. It can be processed at higher feed rates and under heavier feeds without excessive wear or poor machining results.
- Surface Quality: The processed surface is smooth and bright, with good compatibility between the machined surface and connecting components.
2011 Cold Finish Aluminum Bar Corrosion Resistance
Although 2011 aluminum alloy has good mechanical properties, its corrosion resistance is relatively average. However, it can still be enhanced by anodizing, which improves its corrosion resistance and extends its service life. During anodizing, a protective oxide layer is formed on the surface, enhancing the material's resistance to environmental factors.
2011 Cold Finish Aluminum Bar Weldability
The weldability of 2011 aluminum alloy is poor. It is not suitable for conventional welding methods, and its performance in resistance welding is average. Therefore, it is primarily processed using machining methods. For applications requiring welding, other aluminum alloys are recommended.
2011 CF Aluminum Bar Applications
| Application | Description |
| Connectors | 2011 CF aluminum bar, with its excellent machinability and high strength, is commonly used to manufacture connector components. These connectors require precision machining during production to ensure accurate dimensions and smooth surfaces. The 2011 aluminum alloy meets these requirements, and its good mechanical properties ensure the stability and durability of connectors under high load conditions. |
| Fittings | 2011 aluminum alloy, due to its good machinability and high processing precision, is widely used in the production of fittings for various equipment. These fittings often require high precision and smooth surfaces. 2011 aluminum alloy provides very ideal surface quality and dimensional tolerance during processing, making it suitable for the manufacturing of precision fittings, especially in situations where reducing processing time and improving efficiency are important. |
| Brake Pistons | 2011 CF aluminum bar’s high strength and excellent machinability make it an ideal material for brake piston manufacturing. Brake pistons require high strength and wear resistance to ensure stable long-term operation under high temperature and high-pressure conditions. The 2011 aluminum alloy meets these performance requirements while also offering reduced production costs through fast processing and good surface finish. |
| Computer Parts | 2011 aluminum alloy is widely used to manufacture various small components in computer hardware. Its relatively low electrical conductivity and good mechanical properties make it an ideal choice for high-performance computer parts such as heat sinks and brackets. In addition to providing good processing performance, 2011 aluminum alloy maintains sufficient strength to ensure the stability and reliability of computer parts during operation. |
| Knobs | 2011 CF aluminum bar is commonly used in the production of knobs for various electronic products and mechanical equipment. These knobs usually require smooth surfaces and precise dimensions to ensure a seamless user experience and smooth operation. Due to its ease of processing and ability to achieve high surface quality, 2011 aluminum alloy is the preferred material for knob manufacturing. |
| Meter Shafts | Meter shafts require good wear resistance and smooth surfaces to ensure long-term stable operation in precision instruments. 2011 CF aluminum bar’s excellent performance in this regard makes it an ideal choice. Through precision machining, 2011 aluminum alloy provides high-precision dimensions and superior surface quality that meet the requirements for meter shafts, ensuring their reliability and durability in precision instruments. |
2011 CF aluminum bar, with its excellent machinability, good mechanical properties, and surface quality after machining, is widely used in screw machine parts, precision machinery, and automation equipment. Its good machinability allows for efficient processing on various automated equipment and machine tools, making it especially suitable for parts that require precise machining and smooth surfaces. However, while its mechanical properties are outstanding, its corrosion resistance and weldability are average, so additional surface treatments may be necessary for certain specific applications.
2011 CF Aluminum Bar Chemical Composition Table
| Element | Content Range |
| Silicon (Si) | 0.4% |
| Iron (Fe) | 0.7% |
| Copper (Cu) | 5%-6% |
| Lead (Pb) | 0.2%-0.6% |
| Bismuth (Bi) | 0.2%-0.6% |
| Zinc (Zn) | 0.3% |
