3105-H22 Aluminum vs. 3105-H24 Aluminum

Jan. 07, 2025

3105-H22 and 3105-H24 are variants of the same alloy (3105) with similar chemical compositions, but their main difference lies in the processing methods, which affect their mechanical properties.

• 3105-H22: This alloy has a higher elongation rate, greater fatigue strength, and better ultimate tensile strength, making it suitable for applications requiring flexibility, fatigue resistance, and high static load-bearing capacity. It is particularly useful in construction, containers, and aerospace structures that do not require significant plastic deformation.
• 3105-H24: This variant excels in strength, shear strength, yield strength, and fatigue resistance. It is better suited for applications that undergo cyclic stress or require higher durability, such as automotive parts, electronic housings, and structural components subject to variable loads.

Both alloys share similar thermal and electrical properties, with only slight differences in elasticity and thermal shock resistance, which may affect their selection based on the specific requirements of the application.

3105 H22 and 3105-H24 are both variants of the 3105 aluminum alloy, which is a non-heat treatable alloy primarily composed of manganese and belongs to the 3000 series. While their chemical compositions are similar, their mechanical properties differ significantly due to the different tempering processes, which impacts their suitability for various applications, especially when considering strength, flexibility, fatigue resistance, and overall performance under dynamic conditions.

Tempering Differences: 3105 H22 vs. H24

H22 Temper (3105-H22)

Processing: "H" indicates that the alloy has been work-hardened. "2" represents a medium level of strain hardening after partial annealing.

Mechanical Properties:

• Higher elongation: This makes 3105-H22 more flexible, allowing it to undergo some plastic deformation before failure. This is particularly beneficial for applications requiring ductility and formability.
• Improved fatigue resistance: Compared to H24, the H22 temper offers excellent fatigue resistance, making it suitable for components that endure cyclical stress but are not expected to undergo significant deformation.
• Higher tensile strength and yield strength: The H22 temper alloy offers a good balance between strength and ductility, making it ideal for static load-bearing applications.
• Applications: 3105-H22 is typically used in applications requiring good machinability and higher formability, such as building materials, container structures, and certain aerospace components, where flexibility and crack propagation resistance are critical.

H24 Temper (3105-H24)

Processing: "H" indicates work hardening, and "4" represents a higher degree of strain hardening after partial annealing. The H24 temper is stronger than the H22 temper but has a lower elongation rate.

Mechanical Properties:

• Higher strength: 3105-H24 offers higher tensile strength, yield strength, and shear strength, making it more resistant to deformation under load.
• Excellent fatigue resistance: The H24 temper is ideal for applications subjected to repeated or cyclical loads, such as automotive parts and structural components affected by wave forces.
• Lower elongation: While H24 still offers reasonable ductility, its flexibility is lower than that of H22. It may not be as easily bent but can maintain its shape under pressure.
• Applications: This temper is particularly suited for applications requiring durability and the ability to withstand repeated stresses, such as automotive components, electronic housings, or any structural parts that must endure varying loads over time.

3105-H22 and 3105-H24 Aluminum Applications

The choice between 3105-H22 and 3105-H24 depends on the specific application. If flexibility, formability, and higher elongation are crucial, H22 is the preferred choice. If the application requires higher strength, fatigue resistance, and stability under dynamic loads, H24 would be the better option.

• 3105-H22: With a higher elongation rate, it is more flexible and suitable for static applications that allow some deformation. It performs excellently in low to moderate stress and fatigue-resistant environments.
• 3105-H24: With higher strength and fatigue resistance, it is the ideal choice for applications subjected to dynamic or cyclical loads, where durability and service life are key.

3105-H22 Applications

• Construction applications: Used for exterior building products, including roofing, wall panels, gutters, and decorations.
• Container structures: Very suitable for applications requiring high flexibility and fatigue resistance, such as packaging and certain aerospace components.
• Non-critical aerospace components: Lightweight structural parts and non-stress-critical components in aircraft, such as fuselage panels or secondary support structures.

3105-H24 Applications

• Automotive parts: Suitable for components exposed to repetitive stress, such as body panels and structural elements in automobiles.
• Electronic housings: Used for producing durable enclosures for electronic devices.
• Dynamic structural components: Can be used for load-bearing applications that require periodic stress, such as supporting and framing structures in mechanical systems.
• Pressure vessels and tanks: Commonly used in applications requiring higher yield strength and resistance to fluctuating pressures, such as storage tanks and containers.

3105-H22 Aluminum vs. 3105-H24 Aluminum Mechanical Properties Comparison

3105-H22 Aluminum vs. 3105-H24 Aluminum Thermal Properties

3105-H22 Aluminum vs. 3105-H24 Aluminum Electrical Properties

Otherwise Unclassified Properties

Common Calculations

Products you may be interested in

• 3105 h24 aluminum sheet plate
• 3105 Aluminum Plate Sheet
• 3105 h14 aluminum sheet plate
• 3105 painted aluminum sheet
• 3105 Aluminum Coil

Users viewing this material also viewed the following

• 3105 Coated Aluminum Coils
• 3105 Aluminum for Wine Bottle Caps
• 3105 Aluminum Coil for Venetian Blinds
• 3105 Aluminum for Beverage Cans
• 3105 Aluminum for Roofing Panels
• 3105 Corrugated Aluminum Sheet
• 3105 Aluminum for Lamp Holders
• 3105 Aluminum for Bottle Caps

Recommended Content

• 3105-H14 Aluminum vs. 3105-H24 Aluminum
• What is the difference between 3003 H14 and 3105 H14?
• 3104 Aluminum vs. 3105-H19 Aluminum