Aluminum 1050 H14 VS H24

In fields such as packaging, electronics, and pharmaceuticals, 1050 pure aluminum foil, with its high purity of ≥99.5%, combines corrosion resistance, ease of processing, and lightweight advantages, making it a fundamental material in numerous industries.

As a pure aluminum product, 1050 aluminum foil jumbo roll has an aluminum content exceeding 99.5%, which gives it two core advantages: Firstly, it offers strong corrosion resistance and is resistant to oxidation in humid and weakly acidic environments, making it suitable for applications requiring high hygiene standards such as food and pharmaceuticals; secondly, it exhibits excellent plasticity, making it easy to form complex shapes through processes such as cold rolling and stamping.

1050-H14

Aluminum 1050 h14’s core process is "cold rolling + work hardening": 1050 aluminum foil billets are rolled through a cold rolling mill multiple times, utilizing the "work hardening effect" generated by metal deformation to increase the material's hardness and strength, ultimately achieving the performance standard of "1/4 hard".

Core performance

Hardness: Approximately 50-58 HRF (Rockwell hardness), with a noticeably rigid feel and resists manual bending and deformation.

Tensile strength: 110-145 MPa, 15%-50% higher than the soft O state (approximately 95 MPa), capable of withstanding certain external impacts.

Elongation: 8%-15% (50mm gauge length), with moderate formability, capable of simple bending but unable to withstand complex stamping (such as deep drawing or drawing).

Typical applications

Food Packaging: Disposable aluminum foil container, household aluminum foil rolls, etc.

Electronic shielding: Shielding covers for small electronic components (such as the signal shielding layer in routers and headphones, which requires a certain strength to prevent deformation during transportation);

General industrial gaskets: Sealing gaskets for pipes and equipment (no complex design required, only high pressure resistance and resistance to breakage).

1050-H24 aluminum

The H24 process has an additional key step compared to the H14 process: after cold rolling and work hardening, the aluminum foil is placed in an annealing furnace for "low-temperature incomplete annealing." By controlling the temperature (approximately 200-250°C) and time, some internal stresses are eliminated while retaining most of the strength gained from work hardening. The result is the same "quarter-hard" state, but with properties leaning towards "toughness."

Core performances

Hardness: Approximately 48-55 HRF, slightly lower than H14, with a slightly softer feel but still rigid.

Tensile strength: 110-140 MPa, similar to H14, with no significant decrease in strength.

Elongation: 10%-18% (50mm gauge length), 2-3 percentage points higher than H14, allowing it to withstand more complex stretching and stamping processes without cracking or breaking.

Typical applications

Pharmaceutical packaging: Aluminium 1050 h24 is often used for blister packaging (e.g., aluminum-plastic blisters for capsules and tablets, which require punching to form raised cavities; insufficient elongation can easily lead to blister rupture);

Battery components: Aluminum foil for lithium battery tabs (tabs require multiple bending and welding processes; high elongation reduces the risk of breakage during bending);

Precision hardware: Small aluminum foil components for automotive interiors (e.g., decorative foil for air conditioner vents, which must conform to curved surfaces and maintain shape stability after complex molding).