5383 H112 Aluminum
5383 H112 aluminum is a corrosion-resistant, medium-strength alloy with excellent formability, making it ideal for marine applications. It is also cost-effective for structural components exposed to harsh environments.
5383 is a high-strength marine-grade aluminum alloy commonly used in applications where corrosion resistance is critical, such as in marine environments and structural components exposed to seawater.
The alloy belongs to the 5000 series and is primarily composed of aluminum and magnesium. The alloying elements in 5383 offer excellent stress corrosion cracking resistance and general corrosion resistance, particularly in saltwater.
Temper H112 5383
The H112 temper refers to aluminum that has undergone partial processing or strain, but has not been fully heat-treated like other tempers (such as T6). "H" indicates that it has undergone some form of cold working (such as rolling or drawing), and "112" signifies that the alloy's strain hardening is limited, and it is in a state with very low heat treatment.
It is a form of F (fabricated state) tempering, with slight strain hardening potential under specific conditions.
5383 H112 Aluminum Mechanical Properties
| Property | Value |
| Elastic Modulus (x 10^6 psi) | 9.9 |
| Elongation at Break (%) | 12 |
| Fatigue Strength (x 10^3 psi) | 20 |
| Poisson's Ratio | 0.33 |
| Shear Modulus (x 10^6 psi) | 3.7 |
| Shear Strength (x 10^3 psi) | 28 |
| Tensile Strength: Ultimate (x 10^3 psi) | 47 |
| Tensile Strength: Yield (x 10^3 psi) | 23 |
5383 H112 Aluminum Thermal Properties
| Property | Value |
| Latent Heat of Fusion (J/g) | 390 |
| Maximum Temperature: Corrosion (°F) | 150 |
| Maximum Temperature: Mechanical (°F) | 400 |
| Melting Completion (Liquidus) (°F) | 1200 |
| Melting Onset (Solidus) (°F) | 1010 |
| Specific Heat Capacity (BTU/lb-°F) | 0.22 |
| Thermal Conductivity (BTU/h-ft-°F) | 72 |
| Thermal Expansion (µm/m-K) | 24 |
5383 H112 Aluminum Electrical Properties
| Property | Value |
| Electrical Conductivity: Equal Volume (% IACS) | 29 |
| Electrical Conductivity: Equal Weight (% IACS) | 97 |
5383 H112 Aluminum Alloy Composition
| Element | Content Range |
| Aluminum (Al) | 92 to 95.3 |
| Chromium (Cr) | 0 to 0.25 |
| Copper (Cu) | 0 to 0.2 |
| Iron (Fe) | 0 to 0.25 |
| Magnesium (Mg) | 4.0 to 5.2 |
| Manganese (Mn) | 0.7 to 1.0 |
| Silicon (Si) | 0 to 0.25 |
| Titanium (Ti) | 0 to 0.15 |
| Zinc (Zn) | 0 to 0.4 |
| Zirconium (Zr) | 0 to 0.2 |
| Residuals | 0 |
5383 H112 Aluminum Corrosion Resistance
The 5383 alloy is specifically designed to provide excellent corrosion resistance in marine environments due to its high magnesium content. It performs well in saltwater and is resistant to general corrosion and stress corrosion cracking, making it ideal for ships, vessels, and offshore structures.
Applications of 5383-H112 Aluminum
Marine Applications
5383-H112 Aluminum is particularly well-suited for marine applications, such as the construction of ships, vessels, offshore structures, and other marine environments where corrosion resistance is a priority. Its exceptional resistance to seawater corrosion ensures long-lasting durability, making it ideal for hulls, decks, and other components exposed to harsh marine conditions.
Transportation
5383-H112 Aluminum can also be used in lightweight transportation structures that require a balance of strength and resistance to environmental wear. Its corrosion resistance and moderate strength make it an excellent choice for vehicles and transportation-related applications exposed to weathering and mechanical stresses, such as frames, panels, and other structural elements.
Marine Hardware
5383-H112 Aluminum is commonly used in marine hardware, including piping, hulls, tanks, and structural frames on ships and boats. The alloy's superior corrosion resistance in saltwater environments makes it an ideal material for components that need to withstand constant exposure to seawater while maintaining structural integrity over time.
5383 H112 Aluminum Advantages and Disadvantages
Advantages of 5383 H112 Aluminum
| Advantage | Description |
| Corrosion Resistance | 5383-H112 Aluminum offers outstanding resistance to both general corrosion and stress corrosion cracking. This makes it particularly well-suited for applications in harsh environments, such as marine and offshore conditions, where exposure to saltwater and other corrosive agents is a constant concern. |
| Moderate Strength | 5383-H112 Aluminum provides good strength for structural components. While not as strong as some high-strength alloys, its combination of strength and formability makes it a reliable choice for applications where moderate strength is sufficient, such as in marine and transportation structures. |
| Formability | Due to its moderate strength and elongation properties, 5383-H112 Aluminum can be easily formed into complex shapes. This makes it ideal for manufacturing intricate parts and components that require a balance of strength, ductility, and ease of processing, particularly in marine and lightweight structural applications. |
| Cost-Effectiveness | Compared to other high-strength alloys, 5383-H112 Aluminum is relatively cost-effective for marine applications. Its excellent corrosion resistance and moderate strength allow it to be used in demanding environments without the higher material costs associated with other stronger alloys, making it a more economical choice for shipbuilding and other maritime industries. |
Disadvantages of 5383 H112 Aluminum
Limited heat treatment: The H112 temper limits heat treatment capabilities, meaning it cannot achieve the higher strengths of other tempers (such as T6).
Medium strength: While it provides sufficient strength for many applications, it does not match the strength-to-weight ratio of alloys like 7075 or 7050, making it unsuitable for high-stress structures.
5383-H112 aluminum offers a good combination of corrosion resistance and medium strength, making it a valuable material for marine environments and other applications where corrosion is a primary concern. Its temper (H112) ensures it retains some flexibility and formability but lacks the full heat treatment capabilities found in other tempers, thus limiting its ultimate strength. Nevertheless, it remains an excellent choice for marine frames, piping, shipbuilding, and similar applications where longevity and reliability are crucial.
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