Jan. 07, 2025
3105 H14 is suitable for applications with high static load-bearing capacity, while 3105 H24 is more suitable for applications with higher dynamic loads, requiring higher durability and long-term performance.
3105 aluminum alloy is an aluminum alloy containing small amounts of alloying elements (such as copper, magnesium, and manganese), offering good formability and corrosion resistance. It is commonly used in construction, transportation, household appliances, containers, and other fields. Its mechanical properties and application characteristics vary in different temper states, such as H14 and H24.
| Performance Indicator | 3105-H14 | 3105-H24 | Difference Explanation |
| Elongation at Break | Lower, indicating lower ductility and higher brittleness. | Higher, showing stronger ductility. | H24 has better plastic deformation capability, making it suitable for large-area stamping and stretching forming. |
| Fatigue Strength | Lower, with poorer fatigue resistance. | Higher, with better fatigue resistance. | H24 is more suitable for applications subjected to cyclic loads, such as vehicle components and pipeline systems. |
| Modulus of Resilience (Unit Fracture Work) | Lower, with poor toughness, prone to brittle fracture. | Higher, capable of absorbing more energy, showing better toughness. | H24 can absorb more energy before fracture, showing stronger toughness. |
| Strength-to-Weight Ratio (Axial) | Higher strength but poorer ductility and lower fatigue resistance. | Slightly higher strength, but can withstand greater loads for the same weight. | H24 has a higher strength-to-weight ratio, suitable for applications with high strength and weight requirements. |
The main differences between these two aluminum variants stem from the tempering process. H14 indicates that the aluminum alloy has undergone cold working and has achieved the desired strength after tempering, exhibiting good hardness and strength, but with poor ductility. H24, on the other hand, is further tempered on the basis of H14, resulting in better ductility, toughness, and fatigue strength.
Despite differences in mechanical properties, both alloys exhibit similar thermal, electrical, and other unclassified physical properties. For example, they show similar performance in conductivity, thermal conductivity, and corrosion resistance, meaning the choice based on these properties does not need to differentiate between tempering states.
When selecting between these two aluminum alloys, the specific mechanical requirements of the application must be considered. H14 is better suited for static load-bearing applications, while H24 is more appropriate for dynamic load-bearing applications requiring higher durability and long-term performance.
| Application | Description | Reason for Suitability |
| Building Structures | Suitable for components in the building industry that require high strength but not extensive deformation, such as frames, walls, and roofing materials. | 3105-H14 aluminum alloy offers high strength and hardness, making it suitable for structural components that bear significant static loads. |
| Container Manufacturing | Suitable for tanks, vessels, storage containers, especially those that do not need to endure frequent external forces. | The higher strength and corrosion resistance of H14 aluminum make it suitable for manufacturing containers that bear heavy loads and are resistant to plastic deformation. |
| Aerospace Structures | Suitable for components in aerospace structures that bear static loads, such as fuselage frames, bulkheads, etc. | The high hardness of H14 aluminum alloy is ideal for aerospace parts that do not require significant deformation, ensuring precision and stability. |
| Household Appliances | Such as refrigerator, air conditioner housings, washing machine frames, etc. | This alloy's strong corrosion resistance and good appearance make it suitable for external components of household appliances requiring long-term stability. |
| Application | Description | Reason for Suitability |
| Transportation Vehicles (Automobiles, Ships, etc.) | Suitable for automobile exteriors, vehicle frames, hull structures, etc. | 3105-H24 aluminum alloy has higher ductility and fatigue resistance, making it suitable for withstanding vibrations and shocks experienced by vehicles and ships during movement. |
| Automotive Components | Suitable for automobile components such as doors, hoods, exterior panels, especially where high strength and formability are required. | H24 aluminum alloy has high ductility, allowing it to withstand large impacts and vibrations, making it suitable for automotive components that require stretching and stamping. |
| High-Performance Structural Components | Suitable for structural components in buildings and industrial equipment that endure long-term cyclic loads, such as bridges, pipeline systems, and mechanical structures. | H24 aluminum alloy has high fatigue strength, making it suitable for structural components that endure cyclic loads over long periods, extending their service life. |
| Electronic Equipment Housings | Suitable for the housings of electronic devices, especially those requiring protective performance and high-impact toughness. | Due to the toughness and fatigue resistance of H24 aluminum alloy, it can protect electronic components from external impacts and damage. |
| Piping and Vessels | Suitable for piping systems and pressure vessels that need to withstand long-term pressure and cyclic loads. | H24 aluminum alloy has good fatigue resistance, making it suitable for high-pressure vessels and piping systems, capable of withstanding dynamic loads during prolonged use. |
| Property | 3105-H14 Aluminum | 3105-H24 Aluminum |
| Brinell Hardness | 48 | 47 |
| Elastic (Young's, Tensile) Modulus | 10 x 10⁶ psi | 10 x 10⁶ psi |
| Elongation at Break (%) | 2.7 | 5.6 |
| Fatigue Strength (x 10³ psi) | 9.9 | 11 |
| Poisson's Ratio | 0.33 | 0.33 |
| Shear Modulus (x 10⁶ psi) | 3.8 | 3.8 |
| Shear Strength (x 10³ psi) | 15 | 15 |
| Tensile Strength: Ultimate (UTS) | 25 x 10³ psi | 25 x 10³ psi |
| Tensile Strength: Yield (Proof) | 21 x 10³ psi | 21 x 10³ psi |
| Property | 3105-H14 Aluminum | 3105-H24 Aluminum |
| Latent Heat of Fusion (J/g) | 400 | 400 |
| Maximum Temperature: Mechanical (°F) | 360 | 360 |
| Melting Completion (Liquidus) (°F) | 1210 | 1210 |
| Melting Onset (Solidus) (°F) | 1180 | 1180 |
| Specific Heat Capacity (BTU/lb-°F) | 0.21 | 0.21 |
| Thermal Conductivity (BTU/h-ft-°F) | 98 | 98 |
| Thermal Expansion (µm/m-K) | 24 | 24 |
| Property | 3105-H14 Aluminum | 3105-H24 Aluminum |
| Electrical Conductivity: Equal Volume (% IACS) | 44 | 44 |
| Electrical Conductivity: Equal Weight (% IACS) | 140 | 140 |
| Property | 3105-H14 Aluminum | 3105-H24 Aluminum |
| Base Metal Price (% relative) | 9.5 | 9.5 |
| Calomel Potential (mV) | -750 | -750 |
| Density (lb/ft³) | 170 | 170 |
| Embodied Carbon (kg CO₂/kg material) | 8.2 | 8.2 |
| Embodied Energy (x 10³ BTU/lb) | 66 | 66 |
| Embodied Water (gal/lb) | 140 | 140 |
| Property | 3105-H14 Aluminum | 3105-H24 Aluminum |
| Resilience: Ultimate (Unit Rupture Work) (MJ/m³) | 4.5 | 9.1 |
| Resilience: Unit (Modulus of Resilience) (kJ/m³) | 160 | 140 |
| Stiffness to Weight: Axial (points) | 14 | 14 |
| Stiffness to Weight: Bending (points) | 50 | 50 |
| Strength to Weight: Axial (points) | 17 | 18 |
| Strength to Weight: Bending (points) | 25 | 25 |
| Thermal Diffusivity (mm²/s) | 68 | 68 |
| Thermal Shock Resistance (points) | 7.5 | 7.6 |
Products you may be interested in
Users viewing this material also viewed the following
Recommended Content
Please feel free to write down your requirement in the form below. We will reply you within 24 hours and we will protect your personal privacy information.