5383 Aluminum vs. 5456 Aluminum
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5383 aluminum alloy excels in strength and corrosion resistance, making it suitable for hulls and offshore platform structures, while 5456 aluminum alloy offers better ductility and tensile strength, making it ideal for marine engineering equipment subjected to high loads.
5383 and 5456 aluminum alloys are very similar in many characteristics, but their slight differences in yield strength, elongation, thermal properties, and elasticity determine their suitability for specific applications. When choosing an alloy, it is important to consider factors such as load-bearing capacity, ductility, thermal management, and energy absorption based on the specific application requirements.
Performance Comparison of 5383 and 5456 Aluminum Alloys
| Performance Indicator | 5383 Aluminum Alloy | 5456 Aluminum Alloy | Description |
| Tensile Strength | Similar Ultimate Tensile Strength | Similar Ultimate Tensile Strength | Both are similar, but 5456 has slightly higher yield strength |
| Yield Strength | Slightly Lower | Slightly Higher | 5456 alloy has slightly higher yield strength |
| Elongation | 6.7% to 15% | 11% to 18% | 5456 has better ductility |
| Latent Heat of Fusion | Similar | Similar | Both have almost identical latent heat of fusion |
| Specific Heat | Similar | Similar | Both have almost identical specific heat |
| Maximum Mechanical Temperature | 400°F | 370°F | 5383 alloy can withstand higher operating temperatures |
| Fracture Toughness | Similar | Higher | 5456 alloy has higher energy absorption capacity |
| Modulus of Elasticity | Similar | Higher | 5456 has slightly better elasticity |
5383 Aluminum vs. 5456 Aluminum Alloy Composition
| Element | 5383 Aluminum | 5456 Aluminum |
| Aluminum (Al), % | 92 to 95.3 | 92 to 94.8 |
| Chromium (Cr), % | 0 to 0.25 | 0.050 to 0.2 |
| Copper (Cu), % | 0 to 0.2 | 0 to 0.1 |
| Iron (Fe), % | 0 to 0.25 | 0 to 0.4 |
| Magnesium (Mg), % | 4.0 to 5.2 | 4.7 to 5.5 |
| Manganese (Mn), % | 0.7 to 1.0 | 0.5 to 1.0 |
| Silicon (Si), % | 0 to 0.25 | 0 to 0.25 |
| Titanium (Ti), % | 0 to 0.15 | 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.4 | 0 to 0.25 |
| Zirconium (Zr), % | 0 to 0.2 | 0 |
| Residuals, % | 0 | 0 to 0.15 |
5383 Aluminum vs. 5456 Aluminum Mechanical Properties
| Property | 5383 Aluminum | 5456 Aluminum |
| Elastic (Young's, Tensile) Modulus | 9.9 x 10^6 psi | 9.9 x 10^6 psi |
| Elongation at Break (%) | 6.7 to 15 | 11 to 18 |
| Fatigue Strength (x 10^3 psi) | 19 to 30 | 19 to 31 |
| Poisson's Ratio | 0.33 | 0.33 |
| Shear Modulus (x 10^6 psi) | 3.7 | 3.7 |
| Shear Strength (x 10^3 psi) | 28 to 31 | 28 to 30 |
| Tensile Strength: Ultimate (UTS) (x 10^3 psi) | 45 to 54 | 46 to 50 |
| Tensile Strength: Yield (Proof) (x 10^3 psi) | 22 to 45 | 22 to 37 |
5383 Aluminum vs. 5456 Aluminum Thermal Properties
| Property | 5383 Aluminum | 5456 Aluminum |
| Latent Heat of Fusion (J/g) | 390 | 390 |
| Maximum Temperature: Corrosion (°F) | 150 | 150 |
| Maximum Temperature: Mechanical (°F) | 400 | 370 |
| Melting Completion (Liquidus) (°F) | 1200 | 1180 |
| Melting Onset (Solidus) (°F) | 1010 | 1060 |
| Specific Heat Capacity (BTU/lb-°F) | 0.22 | 0.22 |
| Thermal Conductivity (BTU/h-ft-°F) | 72 | 68 |
| Thermal Expansion (µm/m-K) | 24 | 24 |
5383 Aluminum vs. 5456 Aluminum Electrical Properties
| Property | 5383 Aluminum | 5456 Aluminum |
| Electrical Conductivity: Equal Volume (% IACS) | 29 | 29 |
| Electrical Conductivity: Equal Weight (% IACS) | 97 | 97 |
How to Choose 5383 Aluminum and 5456 Aluminum
When selecting the appropriate alloy, the key is to make decisions based on the specific working environment and performance requirements, considering mechanical strength, ductility, temperature tolerance, thermal management, and other factors.
| Selection Factor | Choose 5383 Aluminum | Choose 5456 Aluminum |
| Yield Strength and Tensile Strength | If higher yield strength is needed, but tensile strength is similar | If higher yield strength and tensile strength are required |
| Ductility and Formability | If ductility requirements are lower and higher mechanical strength is needed | If better ductility and formability are required |
| High-Temperature Applications | Suitable for environments that endure high temperatures (higher maximum mechanical temperature) | Suitable for applications requiring lower temperatures |
| Thermal Conductivity and Thermal Management | If thermal conductivity and thermal management are very important (higher thermal conductivity) | If lower thermal conductivity is required, this alloy is preferred |
| Energy Absorption and Impact Resistance | If impact loads are small and other performance is needed | If higher energy absorption capability and impact resistance are required |
- If the application requires higher ductility, yield strength, and energy absorption, choose 5456 aluminum alloy.
- If high temperature tolerance, higher thermal conductivity, and better thermal management performance are needed, choose 5383 aluminum alloy.
5383 Aluminum and 5456 Aluminum Marine Application Comparison
5383 aluminum alloy is widely used in ship structures and marine platform fields, primarily focusing on strength and corrosion resistance. In contrast, 5456 aluminum alloy is more commonly applied in high-load components (such as ship engine parts, marine engineering equipment, and submersibles), with its superior ductility and strength making it better suited for marine environments requiring high mechanical loads.
5383 Aluminum Alloy: In the marine field, it is mainly used for ship structures, marine platforms, and marine equipment that require high strength and high-temperature performance. Its corrosion resistance makes it particularly suitable for long-term use in seawater environments.
5456 Aluminum Alloy: With higher yield strength and better ductility, it is widely used in ships, marine engineering equipment, submersibles, and other marine applications that need to withstand large mechanical loads. Its corrosion resistance and strength ensure the reliability of various high-load components in marine environments.
| Application Area | 5383 Aluminum Alloy | 5456 Aluminum Alloy |
| Ship Structures | Used for hull structural components, such as hull plates, decks, and frames. | Used for ship decks, hull plates, bulkheads, and support frames, etc. |
| Marine Platforms | Used for offshore platforms and floating structures, especially in deep-sea drilling platforms and offshore wind power platforms. | Used for marine platforms and offshore structures, particularly suitable for withstanding large loads. |
| Ship Engine Parts | Used for engine supports, radiators, and pumps, etc. | Used for parts of ship power systems, such as engine supports and propellers. |
| Marine Engineering Equipment | Suitable for structural components in marine engineering, such as offshore platforms. | Used in marine engineering, including offshore drilling platforms and offshore wind power platforms. |
5383 Aluminum Alloy in Marine Applications
5383 aluminum alloy is a high-strength, corrosion-resistant aluminum alloy with excellent mechanical properties, widely used in marine environments, particularly in areas where seawater's corrosiveness is strong.
Ship Structure
Application: 5383 aluminum alloy is commonly used in structural components of ship hulls, including hull plates, decks, and ship framing structures. Its high strength and corrosion resistance make it particularly suitable for high-strength components in marine environments.
Advantages: It can withstand seawater corrosion while providing sufficient mechanical strength, ensuring the long-term stability of the hull structure.
Marine Platforms
Application: In offshore platforms and floating structures, 5383 aluminum alloy is used in supporting structures, frames, and lifting equipment, especially in the construction of deep-sea drilling platforms and offshore wind turbines.
Advantages: Its superior corrosion resistance and good mechanical properties ensure the safety and reliability of marine platforms during long-term use.
Ship Engine Components
Application: 5383 aluminum alloy is also used in the manufacturing of ship engine components, such as engine brackets, radiators, and pumps.
Advantages: With high strength and temperature resistance, it is suitable for long-term operation in high-load environments.
5456 Aluminum Alloy in Marine Applications
5456 aluminum alloy is an aluminum alloy with excellent corrosion resistance and strong mechanical properties, particularly suitable for high-load components in marine environments.
Ship Structure
Application: 5456 aluminum alloy is widely used in ship hull structures, especially in ship decks, hull plates, bulkheads, and supporting frames.
Advantages: Due to its high yield strength and corrosion resistance, 5456 aluminum alloy can withstand larger mechanical loads and corrosion risks in marine environments, making it suitable for large commercial ships, warships, and yachts.
Marine Engineering Equipment
Application: 5456 aluminum alloy is commonly used in structural components for marine engineering, such as offshore drilling platforms, offshore wind turbines, and other marine structures.
Advantages: Its excellent corrosion resistance and good mechanical strength make it ideal for load-bearing components in marine environments, especially under extreme weather and sea conditions, where it can maintain long-term stability.
Ship Propulsion System
Application: 5456 aluminum alloy is widely used in components of ship propulsion systems, such as engine brackets, propellers, rudders, and other critical parts.
Advantages: Its strength and corrosion resistance ensure these components maintain good performance over long periods, especially under high-intensity operating conditions in marine environments.
Otherwise Unclassified Properties
| Property | 5383 Aluminum | 5456 Aluminum |
| Base Metal Price (% relative) | 9.5 | 9.5 |
| Density (lb/ft³) | 170 | 170 |
| Embodied Carbon (kg CO₂/kg material) | 9.0 | 9.0 |
| Embodied Energy (x 10³ BTU/lb) | 67 | 66 |
| Embodied Water (gal/lb) | 140 | 140 |
Common Calculations
| Property | 5383 Aluminum | 5456 Aluminum |
| Resilience: Ultimate (Unit Rupture Work, MJ/m³) | 23 to 40 | 33 to 46 |
| Resilience: Unit (Modulus of Resilience, kJ/m³) | 170 to 690 | 170 to 470 |
| Stiffness to Weight: Axial (points) | 14 | 14 |
| Stiffness to Weight: Bending (points) | 50 | 50 |
| Strength to Weight: Axial (points) | 32 to 38 | 33 to 35 |
| Strength to Weight: Bending (points) | 38 to 42 | 38 to 40 |
| Thermal Diffusivity (mm²/s) | 51 | 48 |
| Thermal Shock Resistance (points) | 14 to 16 | 14 to 15 |
Further reading: 5083 5383 O H112 Marine Grade Aluminum Bars 5456 5454 5754 Marine Grade Aluminum Bar 5383 Marine Grade Aluminum Plate Sheet 5456 Marine Grade Aluminum Plate Sheet Marine Grade Aluminum Round Bar 5754 5454 5456 5456 H111 Aluminum 5456 H112 Aluminum 5456 H116 Aluminum 5456 H32 Aluminum 5456 H321 Aluminum 5456 O Aluminum 5383 H112 Aluminum 5383 H321 Aluminum 5383 H116 Aluminum 5383 H34 Aluminum 5383 H32 Aluminum 5383 H111 Aluminum 5383 O Aluminum
