3104-H18 Aluminum
3104 H18 aluminum alloy is based on the 3104 aluminum alloy in the H18 temper, which is one of the highest strength states obtained through work hardening.
3104-H18 Aluminum Alloy Composition
3104 aluminum alloy belongs to the aluminum-manganese alloy series. The main components typically include aluminum, manganese, silicon (Si), iron (Fe), copper (Cu), magnesium (Mg), etc.
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Aluminum (Al): Makes up the majority, approximately 97.5%-99%
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Manganese (Mn): 0.8%-1.4% (Improves strength and corrosion resistance)
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Other elements such as silicon (Si), iron (Fe), copper (Cu), and magnesium (Mg) are present in smaller amounts.
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Elements
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Si
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Fe
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Cu
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Mn
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Mg
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Zn
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Others
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Al
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Content
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0.6
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0.8
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0.05～0.25
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0.8～1.4
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0.8～1.3
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0.25
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0.05
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Remain
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H18 Temper 3104 Aluminum
The H18 temper indicates that this aluminum alloy has undergone strict cold processing (work hardening) to achieve a higher strength.
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Work hardening: By repeated cold processing (such as cold rolling or stretching), the material's strength is increased without heating, achieving its maximum hardness.
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Hardness and strength: The 3104 aluminum alloy in the H18 temper has higher yield strength and tensile strength compared to other states. It usually exhibits strong resistance to deformation.
3104-H18 Aluminum Mechanical Properties
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Yield strength: The yield strength of 3104-H18 aluminum is typically between 200-270 MPa, which gives it higher load-bearing capacity compared to other softer aluminum alloy states.
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Tensile strength: The tensile strength is generally between 275-320 MPa, making it suitable for applications requiring higher strength.
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Ductility: Despite the high strength, the ductility of 3104-H18 is relatively low due to the cold processing, meaning it does not easily deform like aluminum alloys in other states.
3104-H18 Aluminum Workability
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Weldability: Due to the work-hardened nature of the H18 temper, the weldability of 3104-H18 aluminum is poor. Cracks or deformations may occur during welding, so it is generally not recommended for welding applications.
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Formability: In the H18 temper, 3104 aluminum alloy has poor formability. Unlike soft-temper aluminum alloys, it cannot undergo large-scale forming processes like stamping and bending. After cold processing, the material’s high hardness makes further forming difficult.
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Machinability: Despite its higher hardness, 3104-H18 aluminum can still be machined, but more durable tools and slower processing speeds are required.
3104-H18 Aluminum Corrosion Resistance
3104 aluminum alloy has good corrosion resistance, especially in atmospheric and marine environments. The addition of manganese enhances the corrosion resistance of the alloy, preventing oxidation and pitting, making it suitable for applications that require excellent corrosion protection.
3104 H18 Aluminum Applications
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Beverage cans: 3104-H18 aluminum alloy is widely used in the production of beverage cans and food packaging containers due to its excellent strength and corrosion resistance. It provides sufficient structural strength while remaining lightweight and easy to process, ensuring that containers can withstand external pressure and effectively protect the contents, extending shelf life.
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Automotive industry: 3104-H18 aluminum alloy is widely used in the automotive industry, particularly for manufacturing automotive components that require high strength and corrosion resistance. Its excellent corrosion resistance and high strength make it an important material in exterior parts (such as body panels) and internal structural components, improving the safety and durability of vehicles.
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Construction industry: 3104-H18 aluminum alloy is mainly used for decorative applications in the construction industry. While not commonly used as a primary structural material, its high strength and corrosion resistance make it an ideal choice for door and window frames, exterior facade decorations, and other architectural details. It can withstand harsh environments, ensuring both aesthetic appeal and functionality over time.
3104-H18 Aluminum Surface Treatment
3104-H18 aluminum alloy is typically treated with anodizing or other surface treatments to enhance its corrosion resistance and appearance, particularly in external applications such as building and vehicle exterior components.
3104-H18 aluminum alloy is a high-strength, low-ductility alloy suitable for applications requiring high strength. However, its weldability and formability are relatively poor. It has widespread applications in food and beverage cans, automotive components, and construction materials.
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