2017 Aluminum Round Bar
2017 aluminum round bar is a cylindrical aluminum material made from 2017 aluminum alloy, classified as a hard aluminum alloy, and is widely used in aerospace, mechanical manufacturing, and other fields.
2017 aluminum belongs to the 2000 series, which is an aluminum-copper alloy. This alloy is highly regarded for its excellent strength-to-weight ratio and good machinability. It is typically used in high-performance applications such as aerospace structural components, machine parts, and military equipment.
- Heat Treatment: Can be heat-treated (T4: Solution heat treatment and natural aging; T451: Stress relieved).
- Machinability: Excellent, making it highly suitable for manufacturing precision components like fasteners.
- Corrosion Resistance: Moderate; lower than 6000/5000 series. Protective coatings may be necessary.
2017 alloy combines excellent machinability with high strength, making it one of the most widely used alloys in automatic screw machine work. It is a tough and ductile alloy suitable for heavy-duty structural components, with slightly lower strength than 2014.
2017 Aluminum Round Bar Material Properties
2017 Aluminum Round Bar Belongs to Al-Cu-Mg Series Hard Aluminum
2017 aluminum is a high-strength alloy in the 2000 series (Al-Cu-Mg system). The key elements include:
- Copper (Cu): 3.5–4.5% (Primary alloying element for enhanced strength)
- Magnesium (Mg): 0.4–0.8% (Enhances strength and machinability)
- Manganese (Mn): 0.4–1.0% (Increases stability and corrosion resistance)
- Silicon (Si), Iron (Fe): Trace amounts (<0.8%)
- Balance: Aluminum (Al).
2017 Aluminum Round Bar Has Good Overall Performance, High Strength, and Heat Resistance
- 2017 is a typical hard aluminum alloy from the Al-Cu-Mg series, with balanced overall performance, high strength, and the ability to be strengthened through heat treatment.
- It remains stable in environments up to 150°C and even exceeds the strength of 7075 alloy at temperatures above 125°C.
2017 Aluminum Round Bar Has Poor Corrosion Resistance
- 2017 aluminum round bar has poor corrosion resistance, but corrosion protection can be enhanced through cladding with pure aluminum or anodizing.
- Certain improved variants (e.g., 2017A) offer better corrosion resistance, making them suitable for specific corrosive environments.
2017 Aluminum Round Bar Specifications
| Material | Aluminum |
| Shape | Round |
| Series | 2017-T4 |
| Grade | 2017 |
| Temper | T4 |
| Diameter | Typically from 6 mm (1/4 inch) to 150 mm (6 inches) |
| ASTM Standards | AMS 4118, QQ-A-225/5, ASTM B211, UNS A92017 |
| Surface Finish | Mill finish, polished, or coated (e.g., chromate). |
| Ultimate Tensile Strength | 62 ksi |
| Yield Strength | 40 ksi |
| Density | 0.101 lb/in³ |
2017 Aluminum Round Bar Standards
- ASTM B211 (Aluminum Bar Standard).
- AMS 4172 (Aerospace Material Specification).
- EN 754-2 (European Standard for Extruded Bars).
Haomei 2017 Aluminum Round Bar Inventory List
| Product | Diameter | Estimated Weight | Estimated Weight per 12' Bar |
| 1/4" 2017 T4 Aluminum Round Bar | 0.25 inches | 6.35 mm | 0.060 lbs | ft0.089292 kg/m | 0.714 lbs | 0.3238649736 kg |
| 7/16" 2017 T4 Aluminum Round Bar | 0.4375 inches | 11.1125 mm | 0.182 lbs | ft0.2708524 kg/m | 2.186 lbs | 0.9915529864 kg |
| 1/2" 2017 T4 Aluminum Round Bar | 0.5 inches | 12.7 mm | 0.2380 lbs | ft0.3541916 kg/m | 2.856 lbs | 1.2954598944 kg |
| 5/8" 2017 T451 Aluminum Round Bar | 0.625 inches | 15.875 mm | 0.372 lbs | ft0.5536104 kg/m | 4.462 lbs | 2.0239292888 kg |
| 3/4" 2017 T451 Aluminum Round Bar | 0.75 inches | 19.05 mm | 0.535 lbs | ft0.796187 kg/m | 6.425 lbs | 2.91433117 kg |
| 7/8" 2017 T451 Aluminum Round Bar | 0.875 inches | 22.225 mm | 0.729 lbs | ft1.0848978 kg/m | 8.746 lbs | 3.9671191304 kg |
| 1" 2017 T451 Aluminum Round Bar | 1 inches | 25.4 mm | 0.952 lbs | ft1.4167664 kg/m | 11.423 lbs | 5.1813859852 kg |
| 1 1/16" 2017 T451 Aluminum Round Bar | 1.0625 inches | 26.9875 mm | 1.075 lbs | ft1.599815 kg/m | 12.9 lbs | 5.85134196 kg |
| 1 3/16" 2017 T451 Aluminum Round Bar | 1.1875 inches | 30.1625 mm | 1.342 lbs | ft1.9971644 kg/m | 16.10 lbs | 7.30283764 kg |
| 1 5/16" 2017 T451 Aluminum Round Bar | 1.3125 inches | 33.3375 mm | 1.64 lbs | ft2.440648 kg/m | 19.68 lbs | 8.926698432 kg |
| 1 9/16" 2017 T451 Aluminum Round Bar | 1.3625 inches | 34.6075 mm | 2.324 lbs | ft3.4585768 kg/m | 27.89 lbs | 12.650692036 kg |
| 1 3/4" 2017 T451 Aluminum Round Bar | 1.75 inches | 44.45 mm | 2.915 lbs | ft4.338103 kg/m | 34.98 lbs | 15.866662152 kg |
| 3" 2017 T451 Aluminum Round Bar | 3 inches | 76.2 mm | 8.567 lbs | ft12.7494094 kg/m | 102.8 lbs | 46.62929872 kg |
| 4" 2017 T451 Aluminum Round Bar | 4 inches | 101.6 mm | 15.23 lbs | ft22.665286 kg/m | 182.8 lbs | 82.91669072 kg |
2017 Aluminum Round Bar Diameter Size Tolerance
| or More | or Less | Tolerance |
| 5 | 12 | ±0.06 |
| 13 | 25 | ±0.08 |
| 26 | 38 | ±0.1 |
| 40 | 50 | ±0.15 |
| 52 | 100 | ±0.79 |
| 105 | 150 | ±1.1 |
2017 Aluminum Round Bar Length Size Tolerance
| L | D | ||
| or More | or Less | less than 100 | 105 to 150 |
| 20 | 999 | ±0.5 | 0 ~ +2 |
| 1000 | 0 ~ +5 | ||
| 1001 | 1999 | ||
| 2000 | 0 ~ +10 | ||
2017 Aluminum Round Bar Performance Characteristics
- High strength, good heat resistance
- Poor corrosion resistance, requires protection
- Good formability
- Tendency to crack during welding
Advantages:
- Excellent strength-to-weight ratio
- High fatigue resistance and good machinability
- Can be heat-treated to achieve customized mechanical properties
2017 Aluminum Round Bar Mechanical Properties
| Typical Mechanical Properties | |
| Elongation percent in 2 inches | 22 |
| Hardness Brinnel Number | 105 |
| Ultimate Shearing Strength | 38 ksi |
| Fatigue Endurance Limit1 | 20 ksi |
| Modulus of Elasticity2 | 10.6 x 104 ksi |
2017 Aluminum Round Bar Application Areas
| Application Area | Description |
| Aerospace | 2017 aluminum round bars are widely used in the aerospace industry for manufacturing structural components, such as wing beams, fuselage frames, and landing gear. With its excellent strength and fatigue resistance, 2017 aluminum round bars can withstand complex stresses encountered during flight. Additionally, its good machinability and weldability make it an ideal material for producing precision aerospace components, while maintaining the overall structure’s lightweight, helping to improve fuel efficiency and flight performance. |
| Automotive and Transportation | In the automotive and transportation industries, 2017 aluminum round bars are mainly used for manufacturing engine parts, chassis components, and fasteners. Due to their high strength and heat resistance, they effectively withstand the high-temperature environment and mechanical stresses during engine operation. The lightweight characteristics of 2017 aluminum round bars help reduce the overall vehicle weight, thereby improving fuel economy and vehicle performance, while meeting the strict requirements for material strength and durability in the modern automotive industry. |
| Military and Industrial Equipment | 2017 aluminum round bars are widely used in military and industrial equipment manufacturing for rivets, gears, and other high-stress components. Its high tensile strength and excellent mechanical properties ensure reliable performance of these components under complex working conditions and extreme loads. Furthermore, 2017 aluminum alloy offers good corrosion resistance, making it suitable for long-term use in harsh environments, making it an ideal material for military equipment and industrial machinery. |
| Marine Engineering | In marine engineering, 2017 aluminum round bars are used to manufacture components that require an excellent strength-to-weight ratio. Its outstanding corrosion resistance makes it perform well in marine environments, especially in ship structural parts and offshore platform equipment. Moreover, the good machinability of 2017 aluminum round bars facilitates the manufacture of complex-shaped parts while maintaining the material's mechanical strength, which helps improve the stability and service life of marine equipment. |
| General Machinery Manufacturing | 2017 aluminum round bars are widely used in general machinery manufacturing for parts produced through screw machining and other precision processes. Its excellent cutting performance and machinability make it an ideal choice for precision parts manufacturing. Whether producing bearings, bushings, or small parts for precision instruments, 2017 aluminum round bars provide excellent dimensional accuracy and surface finish, while maintaining the material’s structural strength and durability. |
2017 Aluminum Round Bar Manufacturing and Processing
2017 aluminum can be heat-treated. It is typically processed to a T4 condition, including:
- Solid solution heat treatment: Heating the alloy to dissolve alloying elements.
- Natural aging: Allowing the material to reach a stable state at room temperature.
Its excellent machinability makes it an ideal choice for manufacturing precision parts. However, care must be taken during welding, as its oxide layer and high thermal conductivity may pose challenges; resistance welding is typically preferred.
- Mechanical processing: Performs well when using high-speed steel tools; minimal tool wear.
- Welding: Not recommended due to hot cracking; riveting is preferred.
- Heat treatment: Solution treated at ~500°C, quenched, then aged.
2017 Aluminum Round Bar Corrosion Protection
- Anodizing, painting, or powder coating is recommended for use in harsh environments.
- Round bars are not commonly coated (like the 6000 series), but it is possible.
2017 Aluminum Round Bar vs. Similar Alloys Comparison
2017 vs 2024: 2024 has higher strength (Cu + Mg), but lower machinability. 2017 vs 6061: 6061 has better corrosion resistance and weldability, but lower strength.
Comparison of 2017 Aluminum Round Bar and 2024
Compared to 2024 aluminum round bar, 2017 aluminum round bar has better machinability and wear resistance, making it particularly suitable for parts that require precision machining and wear resistance. However, 2024 aluminum round bar, due to its higher copper and magnesium content, offers higher strength and excellent fatigue performance, making it more common in high-strength structural parts and the aerospace industry. For applications that do not require extremely high strength but demand good cutting performance, 2017 aluminum round bar is a more cost-effective choice.
Comparison of 2017 Aluminum Round Bar and 6061
2017 aluminum round bar outperforms 6061 aluminum round bar in strength and wear resistance, making it more suitable for parts that bear large loads and require wear resistance. However, 6061 aluminum round bar has better corrosion resistance and weldability, particularly excelling in marine environments and chemical industries. Additionally, 6061 has balanced overall performance and is widely used in construction, automotive, and machinery manufacturing, while 2017 aluminum round bar is more suitable for aerospace, military, and precision machinery applications that require high strength and wear resistance.
Selection and Protection of 2017 Aluminum Round Bar
How to Select 2017 Aluminum Round Bar?
When selecting 2017 aluminum round bar, attention should be paid to its chemical composition, mechanical properties, and dimensional accuracy to ensure compliance with relevant standards (such as ASTM B211 or GB/T 3191). High-quality 2017 aluminum round bar should have a uniform surface finish, free from cracks, inclusions, or porosity defects. Additionally, it is important to choose the appropriate diameter, length, and heat treatment state (such as T4 or T451) based on the actual application.
How to Improve the Corrosion Resistance of 2017 Aluminum Round Bar?
2017 aluminum round bar has poor corrosion resistance and can be surface-protected through anodizing, electrophoretic coating, or spraying with anti-corrosion coatings. For more severe environments, sealing treatment or applying anti-corrosion grease can also be used. Furthermore, selecting the appropriate combination with other metals to avoid electrochemical corrosion can effectively enhance its corrosion resistance.
What to Pay Attention to When Using 2017 Aluminum Round Bar?
When using 2017 aluminum round bar, avoid prolonged exposure to damp or corrosive environments to reduce the risk of corrosion. During machining and welding, attention should be paid to temperature control to avoid the formation of heat cracks. Also, direct contact with high-potential metals should be avoided to prevent electrochemical corrosion. Regular inspection and cleaning of the aluminum bar surface can prolong its service life.
Precautions:
- Stress Corrosion Cracking: Risk in high-stress environments; proper tempering (such as T451) can alleviate this risk.
- Storage: Keep dry to prevent oxidation.
- Traditional Uses: Older alloy, sometimes replaced by 2024 or 7075, but still used for specific machining applications.
- Lower corrosion resistance compared to pure aluminum (usually alleviated by anodizing or coating).
- Welding can be challenging and requires specific techniques (such as resistance welding).
2017 aluminum round bar offers a balanced combination of high strength, lightweight, and excellent machinability. These characteristics make it the preferred choice for industries like aerospace and automotive, where reliability and performance are critical.
